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#1 |
Senior Member
![]() Join Date: Mar 2014
Location: Toano, VA
Posts: 874
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What To Do With My Saginaw
Tore my truck down around July because my transmission blew a gasket and left gear oil in the iHOP parking lot, always told myself if anything with the drivetrain goes I'll redo everything, so here I am.
My question is, should I just replace the seals? Rebuild? It grinds going into 3rd unless I find that sweet spot, is that a common thing? I'd heard of non synchronized trannys that do that, so is that weird it does that? If I have to live with it I can, but if it's a simple rather inexpensive fix then why not. I have not torn into it yet to see what shape the gears are in, but I will soon. its just a little saginaw 3 speed (used to be a tree, now its a floor shift.) it also sits behind a 350 sb. in a '70 C10 LWB.
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"Sometimes I do serve as a good bad example. Glad to be of service." My Build Thread (1967 C10, lowered, EFI, daily truck): http://67-72chevytrucks.com/vboard/s...d.php?t=830809 |
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#2 |
Registered User
Join Date: Feb 2013
Location: central California
Posts: 2,736
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Re: What To Do With My Saginaw
When you say re-do everything what did you have in mind?
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#3 |
Senior Member
![]() Join Date: Mar 2014
Location: Toano, VA
Posts: 874
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Re: What To Do With My Saginaw
Repaint, new wiring, rebuilt motor (mostly), fixing rust, new rubber, carpet, rebuild heat, radio, basically a truck to drive, no huge flashy rims or paint job, just a nice cruiser.
__________________
"Sometimes I do serve as a good bad example. Glad to be of service." My Build Thread (1967 C10, lowered, EFI, daily truck): http://67-72chevytrucks.com/vboard/s...d.php?t=830809 |
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#4 |
Senior Member
![]() Join Date: Mar 2014
Location: Toano, VA
Posts: 874
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Re: What To Do With My Saginaw
Something I can be proud to drive, in short.
__________________
"Sometimes I do serve as a good bad example. Glad to be of service." My Build Thread (1967 C10, lowered, EFI, daily truck): http://67-72chevytrucks.com/vboard/s...d.php?t=830809 |
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#5 |
Registered User
Join Date: Jan 2014
Location: Wasilla Alaska
Posts: 537
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Re: What To Do With My Saginaw
It's hard to tell lookin at the pics. is there any metel in the bottom of the tranny case? check the other shift fork and make sure they are not bent. I'm surprised it leaked that bad all at once. unless the tailshaft bolts came loose or something weird like that. Look at the syncro rings. pretty cheap for a rebuild kit really. Just a thought. might be a good time to think about putting a 4 sp. in. a sag. 4 sp. will pretty much go right in place of the 3 sp.
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#6 |
Senior Member
![]() Join Date: Mar 2014
Location: Toano, VA
Posts: 874
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Re: What To Do With My Saginaw
frankslagoon, I did not see any metal in the bottom of the case from when I looked earlier but I will be sure to check again. If I recall theres a magnet down there to catch all metal shavings so I will locate that and check. All other bolts are tight, it can from the side cover. The side cover seemed to blow a seal, but upon looking I saw a hole in the side of the side cover which looks factory, but goes all the way through and basically let the fluid pour out (last photo). Should there be a plug there? Or a bolt? Doesn't look threaded to me. My other theory was the breather clogged up and pressure built and blew the seal.
__________________
"Sometimes I do serve as a good bad example. Glad to be of service." My Build Thread (1967 C10, lowered, EFI, daily truck): http://67-72chevytrucks.com/vboard/s...d.php?t=830809 |
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#7 |
Senior Member
![]() Join Date: Mar 2014
Location: Toano, VA
Posts: 874
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Re: What To Do With My Saginaw
AcampoDave, normally I do the couple fix at a time thing but since the tranny blew a seal and my motor ate about 2-3 quarts of oil over a month with little driving I decided to get most my problems out of the way. The other problem I always ran into was I had to disconnect the battery when the motor wasn't running, or else it would die. I honestly prefer your method because I enjoyed driving it to high school but I guess it just didn't like going to college much. A lot like me you could say.
__________________
"Sometimes I do serve as a good bad example. Glad to be of service." My Build Thread (1967 C10, lowered, EFI, daily truck): http://67-72chevytrucks.com/vboard/s...d.php?t=830809 |
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#8 |
Senior Member
![]() Join Date: Mar 2014
Location: Toano, VA
Posts: 874
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Re: What To Do With My Saginaw
Photos
__________________
"Sometimes I do serve as a good bad example. Glad to be of service." My Build Thread (1967 C10, lowered, EFI, daily truck): http://67-72chevytrucks.com/vboard/s...d.php?t=830809 |
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#9 |
Senior Member
![]() Join Date: Mar 2014
Location: Toano, VA
Posts: 874
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Re: What To Do With My Saginaw
More
The last photo is of the cover plate, is it supposed to have that hole there?
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"Sometimes I do serve as a good bad example. Glad to be of service." My Build Thread (1967 C10, lowered, EFI, daily truck): http://67-72chevytrucks.com/vboard/s...d.php?t=830809 Last edited by KyleSeal; 11-10-2015 at 08:31 PM. Reason: adding sentance |
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#10 |
Registered User
Join Date: Feb 2013
Location: central California
Posts: 2,736
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Re: What To Do With My Saginaw
I dont know much about rebuilding trannys, but fixing it would allow you to check off many of the goals on your "re-do" list while still maintaining a functional vehicle. I personally find it more enjoyable to do upgrades litlle by little while still driving the truck. This route also works better for my budget. (kinda like an installment plan) just my 2 cents. Best of luck
Last edited by AcampoDave; 11-10-2015 at 11:31 PM. |
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#11 |
Registered User
Join Date: Jan 2014
Location: Wasilla Alaska
Posts: 537
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Re: What To Do With My Saginaw
That third hole is where the pivot pin for the detent lever goes. this is a 4 sp. cover but the 3 sp is basically the same I think
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#12 |
Senior Member
![]() Join Date: Mar 2014
Location: Toano, VA
Posts: 874
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Re: What To Do With My Saginaw
Interesting, didn't see that on mine, last guy probably forgot it. Thanks!
__________________
"Sometimes I do serve as a good bad example. Glad to be of service." My Build Thread (1967 C10, lowered, EFI, daily truck): http://67-72chevytrucks.com/vboard/s...d.php?t=830809 |
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#13 |
Senior Member
![]() Join Date: Mar 2014
Location: Toano, VA
Posts: 874
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Re: What To Do With My Saginaw
Do you happen to know where to find one of those? I can't find one anywhere
__________________
"Sometimes I do serve as a good bad example. Glad to be of service." My Build Thread (1967 C10, lowered, EFI, daily truck): http://67-72chevytrucks.com/vboard/s...d.php?t=830809 |
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#14 |
Registered User
Join Date: Jan 2014
Location: Wasilla Alaska
Posts: 537
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Re: What To Do With My Saginaw
Well that's probably why it grinds a little. your lucky your shift linkage is adjusted perfect or you'd really have trouble. Maybe somebody has a sag. 3sp. for parts. you should just get a whole shift plate ass. I'll look around I think I might have one. but we are a long ways away. GM used that tranny in a lot of cars. The 4 speed parts might be the same I'll check that out tomorrow . all in all I'd say this is a pretty easy fix.
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#15 |
Senior Member
![]() Join Date: Mar 2014
Location: Toano, VA
Posts: 874
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Re: What To Do With My Saginaw
So - just checked the gears and let the transmission roll freely.. gears look fine and the synchros looks actually good too, but down at the magnet, LOTS of shavings, looks like its growing hair theres so much. Also found the spring that goes on the cover, a bolt and some weird tube looking bolt on it too? Not sure, weird. So much shavings, but no sign of where it came from? This whole build gets weirder and weirder.
__________________
"Sometimes I do serve as a good bad example. Glad to be of service." My Build Thread (1967 C10, lowered, EFI, daily truck): http://67-72chevytrucks.com/vboard/s...d.php?t=830809 |
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#16 |
Registered User
Join Date: Jan 2014
Location: Wasilla Alaska
Posts: 537
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Re: What To Do With My Saginaw
there are some complete cover ass. on ebay for about 25 bucks.
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Tags |
3 speed, rebuild, saginaw, synchronized, transmission |
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