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Topic: 4 Speed Manual Rebuild Info

in Forum: C3 Driveline Components


4 Speed Manual Rebuild Info

Posted: 10/29/08 9:47am Message 1 of 12
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Bloomfield Hills, MI - USA
Joined: 6/29/2008
Posts: 199
Vette(s): 1975 Corvette coupe, 4 speed manual, 383 ci 9.5:1,Edelbrock dual plane Air Gap intake, Alum Heads,Comp Cam, roller Rockers, PS,PB,Tilt
I will be pulling my four speed Manual transmission to see what's wrong. It will not shift into third gear. All the other's work. Near as I can tell from the serial number the transmission is a Borg Warner that was originally in a 1982 F Body.
 
Where can I get information on how to repair this and also do a rebuild of the syncros etc.



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4 Speed Manual Rebuild Info

Posted: 10/29/08 10:23am Message 2 of 12
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BINGHAMTON, NY - USA
Joined: 7/19/2003
Posts: 3808
Vette(s): ......
Paging DR.ADAMS Clap


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4 Speed Manual Rebuild Info

Posted: 10/29/08 11:33am Message 3 of 12
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Moses Lake, WA - USA
Joined: 4/16/2005
Posts: 2134
Vette(s): 1976 L48 4-spd, Mahogany Metalic exterior, Buckskin interior 350ci/350hp, 3rd owner, fiberglass spring, 255/50-16's Torq-Thrust II
Back when I did mine I found a few HOW TO articals on the web. When I get home tonight I will see if I can find them.Wink


4 Speed Manual Rebuild Info

Posted: 10/29/08 3:50pm Message 4 of 12
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Canada
Joined: 6/23/2008
Posts: 558
Vette(s): 1972, 1980
http://www.corvettemagazine.com/2005/july/transmission/transmission-lead.asp
Hope this works...if not got to Corvette Magazine.com tech articles. Hope this helps.
John



4 Speed Manual Rebuild Info

Posted: 10/29/08 8:15pm Message 5 of 12
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Moses Lake, WA - USA
Joined: 4/16/2005
Posts: 2134
Vette(s): 1976 L48 4-spd, Mahogany Metalic exterior, Buckskin interior 350ci/350hp, 3rd owner, fiberglass spring, 255/50-16's Torq-Thrust II
Here is another one on how to rebuild


4 Speed Manual Rebuild Info

Posted: 10/29/08 10:44pm Message 6 of 12
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Joined: 9/8/2005
Posts: 241
Vette(s): 1980 with a Banks Twin Turbo 1969 Convert Big Block 1996 Grand Sport Convert
 I had a 82 F-Body an IROC and If I remember corectly it had a T-56 5 Speed. I'd figure out whats in there before You  look to rebuild it. Could just be a Shifter Issue on the Outside of the Trans.


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4 Speed Manual Rebuild Info

Posted: 10/31/08 4:34am Message 7 of 12
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Bloomfield Hills, MI - USA
Joined: 6/29/2008
Posts: 199
Vette(s): 1975 Corvette coupe, 4 speed manual, 383 ci 9.5:1,Edelbrock dual plane Air Gap intake, Alum Heads,Comp Cam, roller Rockers, PS,PB,Tilt
I'm pretty sure it's from a Camaro; the serial number on the transmission is 1CL128350. It is not matching to my vehicle.
 
The casing number on the transmission is 1304065903 W.G. Div. FpC4.



4 Speed Manual Rebuild Info

Posted: 10/31/08 9:15am Message 8 of 12
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Mounds View, MN - USA
Joined: 5/24/2007
Posts: 1031
Vette(s): 70 LT1 coupe, 69 350 HP coupe, 69 390HP 427 coupe, 71 LS5 convert, 85 coupe, 93 coupe
I found this post on the Chevelle forum.  If it won't go into third, I would suspect a synchro, but it could be a shifter issue, so It is worth checking first.

The 1304065903 is the number for an aluminum case Super T-10 which was an OEM GM transmission used from 1975 through the early 80's. ...
www.chevelles.com/forums/archive/index.php/t-26348.html

Larry



4 Speed Manual Rebuild Info

Posted: 10/31/08 10:10am Message 9 of 12
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20218
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
Otay...before ya start rippin this thing out for a rebuild, a couple of questions...
"It will not shift into third gear"...what does this mean? Does the shifter move into the third gear position, but the trans is like in neutral?
Does the shifter not go into the third gear position? Like something binding, or keeping the shifter from physically moving into that position?
Does the trans make any noise while in the third gear position?

Inquiring minds want to know!
It does appear to be a mid '80s ST10 trans, from the pics...


Joel Adams
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4 Speed Manual Rebuild Info

Posted: 10/31/08 4:33pm Message 10 of 12
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Canada
Joined: 6/23/2008
Posts: 558
Vette(s): 1972, 1980
Maybe this will help you??
John



in Forum: C3 Driveline Components


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