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Topic: 78 rearend codes and location

in Forum: C3 Driveline Components


78 rearend codes and location

Posted: 2/24/03 3:53pm Message 1 of 4
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Warner Robins, GA - USA
Joined: 2/16/2003
Posts: 244
Vette(s): 1978 Base model, White w/red int. L-48, 4-speed, wide ratio. Has 82 CE wheels. New HEI & LT1 Headers now. UPDATE, NEW Tremic 5-SPEED installed. 2007 C6 Yellow Conv. Loaded. UPDATE-Sold Sept. 2021 2016 C7 Yellow Coupe, Z-51, lots of other options.
Could anyone give me the rearend codes for the '78's. Also, where on the rearend can I find the serial no. and the ratio code? Thanks, Chuck |saluteflag|


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78 rearend codes and location

Posted: 2/25/03 1:34pm Message 2 of 4
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Burke, VT - USA
Joined: 1/23/2002
Posts: 7299
Vette(s):
SOLD - "The Toy" - '70 Convertible
SOLD - "The Beast" - '90 ZR-1 (#682)
SOLD - "Betty" - '28 Ford Model A Tudor
SOLD - "BLKBRRD" - '78 Pontiac Trans Am
"BLUBYU" - '04 Coupe
I'll look them up in the book tonight and post them.

Jim O.
Save the Wave...!!!
|wavey|


Jim Olson 

"The Toys"...!!!  Save the Wave!

Where I've been in a Corvette...!!!

78 rearend codes and location

Posted: 2/25/03 4:01pm Message 3 of 4
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Warner Robins, GA - USA
Joined: 2/16/2003
Posts: 244
Vette(s): 1978 Base model, White w/red int. L-48, 4-speed, wide ratio. Has 82 CE wheels. New HEI & LT1 Headers now. UPDATE, NEW Tremic 5-SPEED installed. 2007 C6 Yellow Conv. Loaded. UPDATE-Sold Sept. 2021 2016 C7 Yellow Coupe, Z-51, lots of other options.
Thanks Jim, that would be great. I see you added a burnout to your little smily faced driver, how do you do that? |headscratch| |thumb| I'll look forward to the new info, you guys have been a great help. I know i'll be asking a lot more ??? befor I get my 78 back on the road, thanks a bunch. |wavey| |saluteflag|


78 rearend codes and location

Posted: 2/25/03 10:41pm Message 4 of 4
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Burke, VT - USA
Joined: 1/23/2002
Posts: 7299
Vette(s):
SOLD - "The Toy" - '70 Convertible
SOLD - "The Beast" - '90 ZR-1 (#682)
SOLD - "Betty" - '28 Ford Model A Tudor
SOLD - "BLKBRRD" - '78 Pontiac Trans Am
"BLUBYU" - '04 Coupe
Appendix E of the 'Corvette Restoration Guide 1968-1982' by Richard Prince lists the following for '78s (all positraction):
Code OK - Ratio 3.08:1
Code OM - Ratio 3.36:1
Code OH - Ratio 3.55:1
Code OJ - Ratio 3.70:1

Hope this helps. Found the 'burnout smilie' on another site in a thread. I think it neat too!

Jim O.
Save the Wave...!!!
|wavey|


Jim Olson 

"The Toys"...!!!  Save the Wave!

Where I've been in a Corvette...!!!

in Forum: C3 Driveline Components


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