t5 question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

wc63 · 09-22-2011, 12:16 AM

i found a t5 and it looks like its a wc but im not sure. is any t5 with the shifter at the end of the tail tailshaft housing a wc? and what should i look for as far as input and output shafts' splines and length. i looked up the number on the tailshaft but couldnt find any info:
13-52-066-923
any help is appreciated.

**jocko** · 09-22-2011, 12:21 AM

shifter location only indicative of what it may have come out of (i.e. F-body vs. S10, etc)
Best way to ID a WC is as follows:
1) cross-ref the ID tag 1352-XXX here: http://www.britishv8.org/Articles/Bo...T5-ID-Tags.htm
and
2) the best eyeball way is to check the front near the bearing retainer - look at the countershaft bearing retainer. The Non-WC has a one-piece design that looks like a large freeze plug while the WC has a two-piece design that looks like two concentric circles. Here’s a pic of each (lifted from the HAMB) WC, then non WC:

(EDIT - OOPS, noticed 066 is not listed on the link, standby, I'll look elsewhere)

**jocko** · 09-22-2011, 12:26 AM

ah, belay my last - tailshaft casting number doesn't mean anything. Does your trans have a metal "tag" located on it anywhere? THAT is the number to look up in the link above. Bottom line though, just look at the front and compare to the 2 pics above and you can ID if WC or not.

Also, if i/p shaft is approx 7+1/16", then it's the longer version and you'll need an adapter to space it out.

It is a true statement that if you have the shifter at the end of the tailshaft that it's MORE LIKELY a WC than if you had a fwd located shifter - because many more camaro's had WCs than S10s, but still gotta check the countershaft bearing retainer to be sure (or attached metal ID tag - but that's not really a guarantee either). There were WC and non-WC available in both tailshaft/shifter configurations.

Input shaft spline count is NOT an indication of WC or Non-WC status. 14 spline WCs were available in the S10.

wc63 · 09-22-2011, 01:23 AM

thanks for the info jocko. i dont have the tranny with me. ill check it out tomorrow. the guy said he was gonna put it in a el camino, but never did. how many splines do i need to look for to make sure its the gm version?

**jocko** · 09-22-2011, 01:43 AM

input shaft should be either:
14 spline (use an astro van clutch disk setup) or 26 spline (use a camaro clutch disk setup)
(note, 14 spline is likely the longer i/p shaft arrangement and will require a spacer (I have this setup) and the 26 spline would likely be the correct input shaft length - but also probably have the rearward shifter location) - BUT measure to be sure (ref measurement above for the long i/p shaft).

output shaft should be 27 spline (if it's 28, it's a Ford T5)

**jocko** · 09-22-2011, 11:53 AM

btw, here's a plate that I JUST found online - would have probably been easier than making one - but I don't know if it will work on a V8 or on a later bell hsg (post-62).

Does anyone know how the bell hsg changed after 62 other than switching from hyd slave to mech linkage? If that is all that changed, I'd think this would work on any 60-66 bell housing, v8 or I6 for the purpose of spacing the input shaft. Anyone know? It's a nice piece of gear - one of the guys on the 47-59 forum is installing it, that's how I stumbled across it. By the way, Hamilton Intakes makes one too, but I tried for months and months to get one from them, and they completely flaked. Will never deal with them again. "Out of Stock" on their website apparently means "pack sand buddy..." Ok, so much for my shameless endorsement of anything NOT Hamilton Intakes.

http://vintagemetalworks.blogspot.co...ter-plate.html

wc63 · 09-22-2011, 09:23 PM

the plate is definitely worth considering. the guy is also throwing in the housing for 20 bucks, so imma take it just in case. i still dont know if it will bolt up to the gmc v6 but imagine most of the gm parts were similar in those years. but then again my truck is a 63 an i got a hydraulic clutch. imma look at it tomorrow. didnt have time today. thanks again jocko.

**jocko** · 09-22-2011, 11:31 PM

u betcha, hope it works out. Yep, 63 jimmy's a bit off the beaten path as 63 chevs had converted to mech linkage by then. BUT, it shouldn't matter as long as the mounting pattern and index ring opening are the same. You could still use your slave cyl clutch setup - as long as the trans physically will mount to the gmc bell. I think it should - but probably good idea to take that extra housing just in case. BUT, it would be nice to keep the current slave setup just to minimize the stuff you're changing and to keep it if you like it.

wc63 · 09-24-2011, 09:54 PM

no bueno. the guy called back and said it has 14 spline. so, from what i undestand, it came out of the v6 camaro or firebird. its still a pretty good price. the guy is asking for 120 for tranny and bell. but i would still have to replace the tailshaft housing to fit my truck. i guess ill keep looking.

wc63 · 05-16-2012, 05:23 PM

So i found a t5 finally. it is a camaro/firebird t5, so i had to have the tailshaft housing replaced. when i was looking i found a guy on phx craigs that specializes in t5s so i bought the housing from him and he volunteered to replace if for me since i was buying the parts from him, good deal. when i was leaving i asked about the yoke and whether or not my current yoke would fit the t5. he had a few t5's lying around along with some 3 speeds. he pulled a yoke from one of the 3 speeds and put it in the t5 housing and it slipped right in. "i guess it will" he said". today when i removed my drive shaft the 1st thing i did was check the yoke. "of course", no go, my yoke is 16 spline and the t5 output shaft is 27. is there an easy fix to this? or is this gonna cost another 100 bones to find the parts? will an s10 yoke fit in place of my current one. btw i have a 63 gmc v6. any help is appreciated

1enick72 · 05-16-2012, 06:09 PM

An s10 shaft will work. I used the whole s10 shaft and had it shortened and balenced and joints replaced, since they had it torn apart anyway. The rear joint is a different measurment on both sides because my yoke is bigger on the rear diff but the drive shaft place will have those just measure your rear diff yoke and give it to them.

Here is another option for the adaptor plate.
http://hamiltonintakes.com/products/...5-swap-adapter

wc63 · 05-17-2012, 01:24 PM

thanks enick,
i found a driveshaft place nearby that will sell me the yoke for 50 something bucks. not too bad i guess. i might as well buy it when i have them shorten my driveshaft. i have seen that hamilton website before. i have the camaro v8 t5, though. from what i understand, that adapter is only needed if the t5 came from a 4cyl engine, im not sure about the v6's. thanks again

hop sing · 05-30-2012, 12:59 PM

Quote:

Originally Posted by wc63

So i found a t5 finally. it is a camaro/firebird t5, so i had to have the tailshaft housing replaced. when i was looking i found a guy on phx craigs that specializes in t5s so i bought the housing from him and he volunteered to replace if for me since i was buying the parts from him, good deal. when i was leaving i asked about the yoke and whether or not my current yoke would fit the t5. he had a few t5's lying around along with some 3 speeds. he pulled a yoke from one of the 3 speeds and put it in the t5 housing and it slipped right in. "i guess it will" he said". today when i removed my drive shaft the 1st thing i did was check the yoke. "of course", no go, my yoke is 16 spline and the t5 output shaft is 27. is there an easy fix to this? or is this gonna cost another 100 bones to find the parts? will an s10 yoke fit in place of my current one. btw i have a 63 gmc v6. any help is appreciated

Good mornin can i get contact info for the t-5 info in phoniex i think that what u said ? thx HOP

wc63 · 05-30-2012, 04:59 PM

Quote:

Originally Posted by hop sing

Good mornin can i get contact info for the t-5 info in phoniex i think that what u said ? thx HOP

look for the t5 guy in phoenix craigslist under auto parts. Wait...

http://phoenix.craigslist.org/nph/pts/2942588705.html

there you go.

brokenspoke · 05-29-2012, 06:42 AM

V 6 Astro van used a 11 inch clutch.....BTW be sure its a cable speedo....

erock805 · 05-29-2012, 07:42 AM

Yeah I used the astro clutch in two of mine. something like 82 to 86. Had to trim the input shaft and sleeve then used washers between the trans and the bell housing. They work great.

brap999 · 05-30-2012, 12:13 AM

FYI, if there are labels on the T5 that say 'USE ATF ONLY' or something to that effect, then it is a world class. The non-wc does not have those labels.

Also, if you don't have a mechanical speedo gear housing in it, you can use a TH350 speedo gear housing, with a TH350 speedo gear. I use it in my T5 and it works like a charm. I've heard mixed things about the T5 mechanical speedo gear housings still being available aside from used ones. The TH350 speedo gear housings are abundant.

**jocko** · 05-30-2012, 12:28 AM

'Use ATF only tag' is not a reliable indicator of a WC - all T5s use ATF for lubrication, WC and non-WC alike.

wc63 · 05-30-2012, 11:01 AM

I was told i should use 75 weight gear oil. Since my t5 is not a wc and does not have the updated synchros.

**jocko** · 05-30-2012, 01:14 PM

WC, you got me to thinking - so I had to look it up in the service manual. Here's the book version of the answer (it is cut/pasted in via pdf, but the info is there):

Section 2
T5 WC & STD On- Vehicle Service and Troubleshooting
2-1. MAINTENANCE
2-2 GENERAL. The only periodic maintenance
required for the TREMEC T5 transmission is to
maintain proper lubrication.
2-3. LUBRICATION SCHEDULE. Refer to the
Vehicle Owner’s Manual or Service Manual.
CAUTION
Excessive temperatures may bread down the
transmission lubricant (refer to vehicle service
manual for maximum allowable temperature). If there
is reason to believe that the transmission has been
subjected to temperatures exceeding 275° F, change
the lubricant immediately.
2-4. APPROVED LUBRICANT. Most T5
transmission models use DexronÒ II automatic
transmission fluid. Refer the vehicle owner’s manual
or service manual for lubricant specifications.
CAUTION
Do not mix different bands or types of transmission
lubricant. DO NOT USE GEAR OIL IN THE T5
TRANSMISSION SINCE THIS MAY DAMAGE THE
BLOCKING RING MATERIAL.

So, while the service manual is referring to both STD and HD (i.e. their terminology for non-WC and WC) in this section, it does state "most" and to check the owner's manual.... So, it kinda leaves the door open until is states in all caps (that's how it is in the manual, I didn't all cap it for emphasis) to NOT USE GEAR OIL - and it's referring to both wc and non-wc..

Having said all that - I probably should have elaborated a bit in my earlier reply - the "book" answer is that both use ATF, unless directed otherwise. And I do know of several builders that use gear oil even in the WC's and swear by it. So, personally, I don't think there will be any harm done either way - but if it were my transmission, I'd stick with ATF.

Good discussion!

**jocko** · 05-30-2012, 01:17 PM

oops- meant to post this also - here's the T5 service manual, pretty helpful little book if anyone needs it.
jocko
http://www.ttcautomotive.com/English...ice_Manual.pdf

**jocko** · 05-30-2012, 05:24 PM

you're welcome! And I agree - the gear oil recommendations seem to come from builders, so proababy pretty reputable (or drumming up business down the road

) But there are enough recommendations out there that it's probably not a bad thing to use gear oil in a wc or non-wc. Good to have a local trans guy you trust like t5 guy that stands behind his work!

padresag · 05-30-2012, 05:45 PM

you don't use 80-90wt though. you should use a lighter viscosity gear oil
ron

wc63 · 09-04-2012, 11:38 PM

Has anyone ever put a t5 behind a gmc v6? I have taken my time in reading everything i can about the switch and have gathered all the pieces slowly, although there is not alot of info on swapping a t5 into a 305 v6.. Now that I am trying to put it together, it is fighting me every step of the way. I am finally at the stage of stabbing it in the engine and it just wont fit. Its got about a quarter to half inch to go. I took it out marked where the alignment tool ends up at the press plate fins, then measured the alignment tool with the input shaft and the fins should reach (or almost reach) the input shaft sleeve. When i go to stick the tranny in, it seems to bottom out with something, but am not quite sure what it is. The pilot bearing is oem, clutch is 26 spline, input shaft is 26 spline and the same diameter as the original 3 speed. Is there an alignment issue im missing? any help is appreciated.

padresag · 09-05-2012, 12:32 AM

Quote:

Originally Posted by wc63

Has anyone ever put a t5 behind a gmc v6? I have taken my time in reading everything i can about the switch and have gathered all the pieces slowly, although there is not alot of info on swapping a t5 into a 305 v6.. Now that I am trying to put it together, it is fighting me every step of the way. I am finally at the stage of stabbing it in the engine and it just wont fit. Its got about a quarter to half inch to go. I took it out marked where the alignment tool ends up at the press plate fins, then measured the alignment tool with the input shaft and the fins should reach (or almost reach) the input shaft sleeve. When i go to stick the tranny in, it seems to bottom out with something, but am not quite sure what it is. The pilot bearing is oem, clutch is 26 spline, input shaft is 26 spline and the same diameter as the original 3 speed. Is there an alignment issue im missing? any help is appreciated.

which t5 are you installing? are you using the adaptor plate or modifying the input shaft.if it is the later you are perhaps running out of spline and have you shortened the trans frt bearing retainer that the t/o bearing rides on.
the spline on the input shaft needs to be lengthened a bit( I did mine with a file and also removed a little of the spline inside of the clutch disc.
there is actually quite a bit of info. a lot of it comes from the Hamb.
http://www.stovebolt.com/techtips/t5tranny.htm
http://www.jalopyjournal.com/forum/s...d.php?t=169265
http://www.inliners.org/Jack/t5_page.html
ron

09-22-2011, 12:16 AM	#1
wc63 Registered User Join Date: Apr 2009 Location: Mesa, Az. Posts: 169	t5 question i found a t5 and it looks like its a wc but im not sure. is any t5 with the shifter at the end of the tail tailshaft housing a wc? and what should i look for as far as input and output shafts' splines and length. i looked up the number on the tailshaft but couldnt find any info: 13-52-066-923 any help is appreciated.

09-22-2011, 12:21 AM	#2
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,943	Re: t5 question shifter location only indicative of what it may have come out of (i.e. F-body vs. S10, etc) Best way to ID a WC is as follows: 1) cross-ref the ID tag 1352-XXX here: http://www.britishv8.org/Articles/Bo...T5-ID-Tags.htm and 2) the best eyeball way is to check the front near the bearing retainer - look at the countershaft bearing retainer. The Non-WC has a one-piece design that looks like a large freeze plug while the WC has a two-piece design that looks like two concentric circles. Here’s a pic of each (lifted from the HAMB) WC, then non WC: (EDIT - OOPS, noticed 066 is not listed on the link, standby, I'll look elsewhere) Attached Images

09-22-2011, 12:26 AM	#3
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,943	Re: t5 question ah, belay my last - tailshaft casting number doesn't mean anything. Does your trans have a metal "tag" located on it anywhere? THAT is the number to look up in the link above. Bottom line though, just look at the front and compare to the 2 pics above and you can ID if WC or not. Also, if i/p shaft is approx 7+1/16", then it's the longer version and you'll need an adapter to space it out. It is a true statement that if you have the shifter at the end of the tailshaft that it's MORE LIKELY a WC than if you had a fwd located shifter - because many more camaro's had WCs than S10s, but still gotta check the countershaft bearing retainer to be sure (or attached metal ID tag - but that's not really a guarantee either). There were WC and non-WC available in both tailshaft/shifter configurations. Input shaft spline count is NOT an indication of WC or Non-WC status. 14 spline WCs were available in the S10. Last edited by jocko; 09-22-2011 at 12:59 AM.

09-22-2011, 01:23 AM	#4
wc63 Registered User Join Date: Apr 2009 Location: Mesa, Az. Posts: 169	Re: t5 question thanks for the info jocko. i dont have the tranny with me. ill check it out tomorrow. the guy said he was gonna put it in a el camino, but never did. how many splines do i need to look for to make sure its the gm version?

09-22-2011, 01:43 AM	#5
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,943	Re: t5 question input shaft should be either: 14 spline (use an astro van clutch disk setup) or 26 spline (use a camaro clutch disk setup) (note, 14 spline is likely the longer i/p shaft arrangement and will require a spacer (I have this setup) and the 26 spline would likely be the correct input shaft length - but also probably have the rearward shifter location) - BUT measure to be sure (ref measurement above for the long i/p shaft). output shaft should be 27 spline (if it's 28, it's a Ford T5)

09-22-2011, 11:53 AM	#6
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,943	Re: t5 question btw, here's a plate that I JUST found online - would have probably been easier than making one - but I don't know if it will work on a V8 or on a later bell hsg (post-62). Does anyone know how the bell hsg changed after 62 other than switching from hyd slave to mech linkage? If that is all that changed, I'd think this would work on any 60-66 bell housing, v8 or I6 for the purpose of spacing the input shaft. Anyone know? It's a nice piece of gear - one of the guys on the 47-59 forum is installing it, that's how I stumbled across it. By the way, Hamilton Intakes makes one too, but I tried for months and months to get one from them, and they completely flaked. Will never deal with them again. "Out of Stock" on their website apparently means "pack sand buddy..." Ok, so much for my shameless endorsement of anything NOT Hamilton Intakes. http://vintagemetalworks.blogspot.co...ter-plate.html

09-22-2011, 09:23 PM	#7
wc63 Registered User Join Date: Apr 2009 Location: Mesa, Az. Posts: 169	Re: t5 question the plate is definitely worth considering. the guy is also throwing in the housing for 20 bucks, so imma take it just in case. i still dont know if it will bolt up to the gmc v6 but imagine most of the gm parts were similar in those years. but then again my truck is a 63 an i got a hydraulic clutch. imma look at it tomorrow. didnt have time today. thanks again jocko.

09-22-2011, 11:31 PM	#8
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,943	Re: t5 question u betcha, hope it works out. Yep, 63 jimmy's a bit off the beaten path as 63 chevs had converted to mech linkage by then. BUT, it shouldn't matter as long as the mounting pattern and index ring opening are the same. You could still use your slave cyl clutch setup - as long as the trans physically will mount to the gmc bell. I think it should - but probably good idea to take that extra housing just in case. BUT, it would be nice to keep the current slave setup just to minimize the stuff you're changing and to keep it if you like it.

09-24-2011, 09:54 PM	#9
wc63 Registered User Join Date: Apr 2009 Location: Mesa, Az. Posts: 169	Re: t5 question no bueno. the guy called back and said it has 14 spline. so, from what i undestand, it came out of the v6 camaro or firebird. its still a pretty good price. the guy is asking for 120 for tranny and bell. but i would still have to replace the tailshaft housing to fit my truck. i guess ill keep looking.

05-16-2012, 05:23 PM	#10
wc63 Registered User Join Date: Apr 2009 Location: Mesa, Az. Posts: 169	Re: t5 question So i found a t5 finally. it is a camaro/firebird t5, so i had to have the tailshaft housing replaced. when i was looking i found a guy on phx craigs that specializes in t5s so i bought the housing from him and he volunteered to replace if for me since i was buying the parts from him, good deal. when i was leaving i asked about the yoke and whether or not my current yoke would fit the t5. he had a few t5's lying around along with some 3 speeds. he pulled a yoke from one of the 3 speeds and put it in the t5 housing and it slipped right in. "i guess it will" he said". today when i removed my drive shaft the 1st thing i did was check the yoke. "of course", no go, my yoke is 16 spline and the t5 output shaft is 27. is there an easy fix to this? or is this gonna cost another 100 bones to find the parts? will an s10 yoke fit in place of my current one. btw i have a 63 gmc v6. any help is appreciated

05-16-2012, 06:09 PM	#11
1enick72 Registered User Join Date: Jun 2010 Location: Jackson, ME Posts: 287	Re: t5 question An s10 shaft will work. I used the whole s10 shaft and had it shortened and balenced and joints replaced, since they had it torn apart anyway. The rear joint is a different measurment on both sides because my yoke is bigger on the rear diff but the drive shaft place will have those just measure your rear diff yoke and give it to them. Here is another option for the adaptor plate. http://hamiltonintakes.com/products/...5-swap-adapter

05-17-2012, 01:24 PM	#12
wc63 Registered User Join Date: Apr 2009 Location: Mesa, Az. Posts: 169	Re: t5 question thanks enick, i found a driveshaft place nearby that will sell me the yoke for 50 something bucks. not too bad i guess. i might as well buy it when i have them shorten my driveshaft. i have seen that hamilton website before. i have the camaro v8 t5, though. from what i understand, that adapter is only needed if the t5 came from a 4cyl engine, im not sure about the v6's. thanks again

05-29-2012, 06:42 AM	#15
brokenspoke Registered User Join Date: Jul 2011 Location: Anderson, Texas Posts: 535	Re: t5 question V 6 Astro van used a 11 inch clutch.....BTW be sure its a cable speedo....

05-29-2012, 07:42 AM	#16
erock805 Registered User Join Date: Apr 2007 Location: gilbert, az Posts: 392	Re: t5 question Yeah I used the astro clutch in two of mine. something like 82 to 86. Had to trim the input shaft and sleeve then used washers between the trans and the bell housing. They work great. __________________ "Do what you want to the girl, but leave me alone!"

05-30-2012, 12:13 AM	#17
brap999 Registered User Join Date: Mar 2011 Location: Springfield, VA Posts: 223	Re: t5 question FYI, if there are labels on the T5 that say 'USE ATF ONLY' or something to that effect, then it is a world class. The non-wc does not have those labels. Also, if you don't have a mechanical speedo gear housing in it, you can use a TH350 speedo gear housing, with a TH350 speedo gear. I use it in my T5 and it works like a charm. I've heard mixed things about the T5 mechanical speedo gear housings still being available aside from used ones. The TH350 speedo gear housings are abundant. __________________ 1963 Chevrolet C10 Stepside 1972 Pontiac GTO 1998 Dodge Viper GTS 1999 Jeep Cherokee XJ 2018 Chevy Camaro ZL1-1LE *It's never too early to beef up my obituary*



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05-30-2012, 12:28 AM	#18
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,943	Re: t5 question 'Use ATF only tag' is not a reliable indicator of a WC - all T5s use ATF for lubrication, WC and non-WC alike.

05-30-2012, 11:01 AM	#19
wc63 Registered User Join Date: Apr 2009 Location: Mesa, Az. Posts: 169	Re: t5 question I was told i should use 75 weight gear oil. Since my t5 is not a wc and does not have the updated synchros.

05-30-2012, 01:14 PM	#20
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,943	Re: t5 question WC, you got me to thinking - so I had to look it up in the service manual. Here's the book version of the answer (it is cut/pasted in via pdf, but the info is there): Section 2 T5 WC & STD On- Vehicle Service and Troubleshooting 2-1. MAINTENANCE 2-2 GENERAL. The only periodic maintenance required for the TREMEC T5 transmission is to maintain proper lubrication. 2-3. LUBRICATION SCHEDULE. Refer to the Vehicle Owner’s Manual or Service Manual. CAUTION Excessive temperatures may bread down the transmission lubricant (refer to vehicle service manual for maximum allowable temperature). If there is reason to believe that the transmission has been subjected to temperatures exceeding 275° F, change the lubricant immediately. 2-4. APPROVED LUBRICANT. Most T5 transmission models use DexronÒ II automatic transmission fluid. Refer the vehicle owner’s manual or service manual for lubricant specifications. CAUTION Do not mix different bands or types of transmission lubricant. DO NOT USE GEAR OIL IN THE T5 TRANSMISSION SINCE THIS MAY DAMAGE THE BLOCKING RING MATERIAL. So, while the service manual is referring to both STD and HD (i.e. their terminology for non-WC and WC) in this section, it does state "most" and to check the owner's manual.... So, it kinda leaves the door open until is states in all caps (that's how it is in the manual, I didn't all cap it for emphasis) to NOT USE GEAR OIL - and it's referring to both wc and non-wc.. Having said all that - I probably should have elaborated a bit in my earlier reply - the "book" answer is that both use ATF, unless directed otherwise. And I do know of several builders that use gear oil even in the WC's and swear by it. So, personally, I don't think there will be any harm done either way - but if it were my transmission, I'd stick with ATF. Good discussion!

05-30-2012, 01:17 PM	#21
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,943	Re: t5 question oops- meant to post this also - here's the T5 service manual, pretty helpful little book if anyone needs it. jocko http://www.ttcautomotive.com/English...ice_Manual.pdf

05-30-2012, 05:24 PM	#22
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,943	Re: t5 question you're welcome! And I agree - the gear oil recommendations seem to come from builders, so proababy pretty reputable (or drumming up business down the road ) But there are enough recommendations out there that it's probably not a bad thing to use gear oil in a wc or non-wc. Good to have a local trans guy you trust like t5 guy that stands behind his work!

05-30-2012, 05:45 PM	#23
padresag Registered User Join Date: Feb 2008 Location: Sidney,b.c. Posts: 4,425	Re: t5 question you don't use 80-90wt though. you should use a lighter viscosity gear oil ron

09-04-2012, 11:38 PM	#24
wc63 Registered User Join Date: Apr 2009 Location: Mesa, Az. Posts: 169	Re: t5 question Has anyone ever put a t5 behind a gmc v6? I have taken my time in reading everything i can about the switch and have gathered all the pieces slowly, although there is not alot of info on swapping a t5 into a 305 v6.. Now that I am trying to put it together, it is fighting me every step of the way. I am finally at the stage of stabbing it in the engine and it just wont fit. Its got about a quarter to half inch to go. I took it out marked where the alignment tool ends up at the press plate fins, then measured the alignment tool with the input shaft and the fins should reach (or almost reach) the input shaft sleeve. When i go to stick the tranny in, it seems to bottom out with something, but am not quite sure what it is. The pilot bearing is oem, clutch is 26 spline, input shaft is 26 spline and the same diameter as the original 3 speed. Is there an alignment issue im missing? any help is appreciated.

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