driveshaft crap - the stupid stuff we do - yolk info - The 1947 - Present Chevrolet & GMC Truck Message Board Network

shifty · 04-10-2006, 02:32 PM

okay - just FYI - all of the following trannies use the same yolk:

Muncie/Saginaw 3spd
T56
T-10
TH350
4l60E
Muncie M21

Probably are other ones, but that's a list just for reference. I found this out the hard way.

So... my engine and tranny shipped shipped with a cap in the end of the tranny tailshaft it to keep the fluid from running out. I thought it was just a red plastic cap - but there was a tube the same diameter as the yolk which was inserted in the tailshaft to hold that cap in ... i didn't know this, so it stayed in ...

Uh, I kept trying to stick a yolk in the end of the transmission and it wouldn't fit because of that tube - I tried every sticking in every yolk imaginable to man before I realized (while talking to the guys in chat), "Duh, there is an extra tube in here preventing the yolk from going in!"...then I notice after pulling that little tube out that, "DAMNIT my 3spd yolk woulda fit!"

So, I find out this info too late, after going to Summit to buy the "right" part and realizing it wouldn't fit (hence why I realized there was an additional piece to the tranny cap in the tailshaft).

Well, to add to it, before I figured out this juicy tidbit of info, I decided that while I had my driveshaft out I might as well pop out the U-joints (thinking I was going to need a new yolk) and I was going to need to shorten the driveshaft to fit. So, newer u-joints, less than 10k miles on them, DS in good shape, all with a yolk I thought was wrong.

Well, once I realized I had the right yolk already, I (was pissed and) popped my 3spd yolk into the T56 tranny all the way, slid it out an inch, then measured from mid-u-joint cap to mid-u-joint cap and realized my stock driveshaft and yolk for the 3spd was already within ½" length of the DS i needed - in other words, I DIDN'T NEED TO REMOVE THE U-JOINTS, I DIDN'T NEED TO REMOVE THE YOLK, AND THE 3SPD DRIVESHAFT WAS THE PERFECT LENGTH TO USE WITH MY LS1 AND T56. My driveshaft needs to be ~56½" and it is currently 56".

So, now I get to pay someone $60 to press in two new the U-joints that I didn't need to take out in the first place.

This is like the third time I've done something in this swap to cost time and money when, had I figured out what was really going on and not made a "newbie" mistake, I could have saved money, time and hassle.

Meanwhile, I just drove to a driveshaft shop in Marietta GA only to get screwed around by the guys that worked there and drive all the way back to work getting nothing accomplished after waiting an hour.

I swear, sometimes life just isn't fair

qksilver · 04-10-2006, 02:45 PM

prep and planning always helps but there are just times that no matter what Murphy is looking over your shoulder

Brainchild · 04-10-2006, 03:15 PM

The Borg Warner Super T10,and 400TH uses the same yoke,I think all others are the same.

cdowns · 04-10-2006, 03:51 PM

sounds like the yokes on you

meathead95 · 04-10-2006, 04:00 PM

you cant press you new ujoint in with a bench vise?

67ChevyRedneck · 04-10-2006, 04:04 PM

When I swapped to my 700R4 (27 spline) my 3spd manual splined shaft didn't fit. I think it was either 28 or 30 splines? I think my tranny was a saginaw? It sucked searching yard's for one that had the correct splines and fit my driveshaft!

shifty · 04-10-2006, 04:41 PM

I had a 3spd saginaw synchronized (out of a '69). had 27 or 28 splines.

meathead, i probably could press it in - but i damaged at least one of them when punching them out, so if the shop is installing them for free after i buy em, i might as well let em do it.

meathead95 · 04-10-2006, 04:43 PM

o i c it sounded like someone was charging you $60 just to press them in.

farside847 · 04-10-2006, 04:52 PM

Doesnt the 200-4r use the same yolk too? Plus the 200-4r is almost the same length as the saginaw 3sp

Tx Firefighter · 04-10-2006, 08:43 PM

Quote:

Originally Posted by 67ChevyRedneck

When I swapped to my 700R4 (27 spline) my 3spd manual splined shaft didn't fit. I think it was either 28 or 30 splines? I think my tranny was a saginaw? It sucked searching yard's for one that had the correct splines and fit my driveshaft!

I think you may have had something other than a Saginaw 3 speed then. I have two Saginaw 3 speeds in my shop now, and the yokes are the same as TH350, 700R4, etc, the common yoke.

**Green Machine** · 04-10-2006, 09:54 PM

Don't feel bad happens to me all the time, even when you plan it out in your head, when it come time to do it, well, expect the unexpected. A little more time, a little more money.........

krue · 04-11-2006, 12:02 AM

Hate to hear I'm not the only one to learn a lesson the hard way.

**Ron 586** · 04-11-2006, 02:30 AM

Hate to hear that you are having so much trouble with your truck project. Seems to have you frustrated a bit. I get that way too sometimes when I turn on my new computer, that's hooked to my new copier/scanner/printer, that I down loaded pictures from my new digital camera into....... AND I STILL CAN'T POST A DAMN PICTURE ON THIS SITE. Now I feel much better.

71/454 · 04-11-2006, 02:43 AM

Just so I get it right I have a turbo350 and am putting in a super t-10 4spd are the yokes the same?

shifty · 04-11-2006, 10:10 AM

It's possible. You need to know whether your yoke is a 27/28 spline or 32 spline. The Super T-10 came in a 28 spline and a 32 spline.

These transmissions use 27 or 28 spline:
GM TH-350/Powerglide/Super T-10/4L60E/4L60/T-56/Muncie M-21

These use 32 spline:
GM TH-400/ Doug Nash/ Borg Warner Super T-10 Transmission

04-10-2006, 02:32 PM	#1
shifty Questionable Join Date: Mar 2005 Location: Atlanta Posts: 13,376	driveshaft crap - the stupid stuff we do - yolk info okay - just FYI - all of the following trannies use the same yolk: Muncie/Saginaw 3spd T56 T-10 TH350 4l60E Muncie M21 Probably are other ones, but that's a list just for reference. I found this out the hard way. So... my engine and tranny shipped shipped with a cap in the end of the tranny tailshaft it to keep the fluid from running out. I thought it was just a red plastic cap - but there was a tube the same diameter as the yolk which was inserted in the tailshaft to hold that cap in ... i didn't know this, so it stayed in ... Uh, I kept trying to stick a yolk in the end of the transmission and it wouldn't fit because of that tube - I tried every sticking in every yolk imaginable to man before I realized (while talking to the guys in chat), "Duh, there is an extra tube in here preventing the yolk from going in!"...then I notice after pulling that little tube out that, "DAMNIT my 3spd yolk woulda fit!" So, I find out this info too late, after going to Summit to buy the "right" part and realizing it wouldn't fit (hence why I realized there was an additional piece to the tranny cap in the tailshaft). Well, to add to it, before I figured out this juicy tidbit of info, I decided that while I had my driveshaft out I might as well pop out the U-joints (thinking I was going to need a new yolk) and I was going to need to shorten the driveshaft to fit. So, newer u-joints, less than 10k miles on them, DS in good shape, all with a yolk I thought was wrong. Well, once I realized I had the right yolk already, I (was pissed and) popped my 3spd yolk into the T56 tranny all the way, slid it out an inch, then measured from mid-u-joint cap to mid-u-joint cap and realized my stock driveshaft and yolk for the 3spd was already within ½" length of the DS i needed - in other words, I DIDN'T NEED TO REMOVE THE U-JOINTS, I DIDN'T NEED TO REMOVE THE YOLK, AND THE 3SPD DRIVESHAFT WAS THE PERFECT LENGTH TO USE WITH MY LS1 AND T56. My driveshaft needs to be ~56½" and it is currently 56". So, now I get to pay someone $60 to press in two new the U-joints that I didn't need to take out in the first place. This is like the third time I've done something in this swap to cost time and money when, had I figured out what was really going on and not made a "newbie" mistake, I could have saved money, time and hassle. Meanwhile, I just drove to a driveshaft shop in Marietta GA only to get screwed around by the guys that worked there and drive all the way back to work getting nothing accomplished after waiting an hour. I swear, sometimes life just isn't fair __________________ If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link) I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM. Last edited by shifty; 04-11-2006 at 10:15 AM.

04-10-2006, 02:45 PM	#2
qksilver Senior Member Join Date: Dec 2004 Location: Southern Pines NC Posts: 3,853	Re: driveshaft crap - the stupid stuff we do - yolk info prep and planning always helps but there are just times that no matter what Murphy is looking over your shoulder

04-10-2006, 03:15 PM	#3
Brainchild Still drivin' a Rat Rod Join Date: Sep 2004 Location: Monett Missouri Posts: 4,925	Re: driveshaft crap - the stupid stuff we do - yolk info The Borg Warner Super T10,and 400TH uses the same yoke,I think all others are the same. __________________ Rusty Member #13872 Instead of saying.....you are a discomfort in the back of my front.....one should be able to say...... you are a pain in the a$# 71 GMC LWB 49 Chevy 85 Chevy G20 Check out my website

04-10-2006, 03:51 PM	#4
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: driveshaft crap - the stupid stuff we do - yolk info sounds like the yokes on you __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

04-10-2006, 04:00 PM	#5
meathead95 computer illiterate Join Date: Jan 2001 Location: Des Moines, IA Posts: 6,446	Re: driveshaft crap - the stupid stuff we do - yolk info you cant press you new ujoint in with a bench vise? __________________ 72 2wd blazer 72 swb 4x4

04-10-2006, 04:04 PM	#6
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: driveshaft crap - the stupid stuff we do - yolk info When I swapped to my 700R4 (27 spline) my 3spd manual splined shaft didn't fit. I think it was either 28 or 30 splines? I think my tranny was a saginaw? It sucked searching yard's for one that had the correct splines and fit my driveshaft! __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

04-10-2006, 04:41 PM	#7
shifty Questionable Join Date: Mar 2005 Location: Atlanta Posts: 13,376	Re: driveshaft crap - the stupid stuff we do - yolk info I had a 3spd saginaw synchronized (out of a '69). had 27 or 28 splines. meathead, i probably could press it in - but i damaged at least one of them when punching them out, so if the shop is installing them for free after i buy em, i might as well let em do it. __________________ If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link) I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM. Last edited by shifty; 04-11-2006 at 10:16 AM.

04-10-2006, 04:43 PM	#8
meathead95 computer illiterate Join Date: Jan 2001 Location: Des Moines, IA Posts: 6,446	Re: driveshaft crap - the stupid stuff we do - yolk info o i c it sounded like someone was charging you $60 just to press them in. __________________ 72 2wd blazer 72 swb 4x4

04-10-2006, 04:52 PM	#9
farside847 Registered User Join Date: Feb 2005 Location: Bay Area, California Posts: 995	Re: driveshaft crap - the stupid stuff we do - yolk info Doesnt the 200-4r use the same yolk too? Plus the 200-4r is almost the same length as the saginaw 3sp __________________ 1971 Chevy C10 Shortbed Stepside, 307v8 3-on-the-tree

04-10-2006, 09:54 PM	#11
Green Machine Senior Member Join Date: Jul 2004 Location: Estherville, Iowa Posts: 3,371	Re: driveshaft crap - the stupid stuff we do - yolk info Don't feel bad happens to me all the time, even when you plan it out in your head, when it come time to do it, well, expect the unexpected. A little more time, a little more money......... __________________ 1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0

04-11-2006, 12:02 AM	#12
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,450	Re: driveshaft crap - the stupid stuff we do - yolk info Hate to hear I'm not the only one to learn a lesson the hard way. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

04-11-2006, 02:30 AM	#13
Ron 586 RIP Mr Ron Join Date: Dec 2005 Location: Big Sandy, Tn. 38221 Posts: 8,166	Re: driveshaft crap - the stupid stuff we do - yolk info Hate to hear that you are having so much trouble with your truck project. Seems to have you frustrated a bit. I get that way too sometimes when I turn on my new computer, that's hooked to my new copier/scanner/printer, that I down loaded pictures from my new digital camera into....... AND I STILL CAN'T POST A DAMN PICTURE ON THIS SITE. Now I feel much better. __________________ Ron (Mr Round Tuit) Be kinder than necessary, for everyone you meet is fighting some kind of battle TN Message Forum TN Facebook Group SETN Truck Show My Photobucket

04-11-2006, 02:43 AM	#14
71/454 Turbo Guy Join Date: Jan 2005 Location: Calgary Alberta Posts: 353	Re: driveshaft crap - the stupid stuff we do - yolk info Just so I get it right I have a turbo350 and am putting in a super t-10 4spd are the yokes the same?

04-11-2006, 10:10 AM	#15
shifty Questionable Join Date: Mar 2005 Location: Atlanta Posts: 13,376	Re: driveshaft crap - the stupid stuff we do - yolk info It's possible. You need to know whether your yoke is a 27/28 spline or 32 spline. The Super T-10 came in a 28 spline and a 32 spline. These transmissions use 27 or 28 spline: GM TH-350/Powerglide/Super T-10/4L60E/4L60/T-56/Muncie M-21 These use 32 spline: GM TH-400/ Doug Nash/ Borg Warner Super T-10 Transmission __________________ If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link) I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM. Last edited by shifty; 04-11-2006 at 10:14 AM.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.