Topic: 4 Speed Manual Rebuild Info
in Forum: C3 Driveline Components
Already a Member?
Click Here to Login
Not yet a Member?
Click Here to Register for Free!
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.
SPONSOR AD:: (Our Sponsors help support C3VR)

Moderator
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.

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

Moderator
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

Joined: 9/8/2005
Posts: 241
Vette(s): 1980 with a Banks Twin Turbo
1969 Convert Big Block
1996 Grand Sport Convert
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.



Former Member
Send PM
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
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

Moderator
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...
"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
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
in Forum: C3 Driveline Components
SPONSOR AD: (Our Sponsors help support C3VR)