Just cleaned and painted the differential housing on my 62. S/N of the car is 879 which makes its build date in the first few days of October. The P/N3789812 housing has a casting date J 16 1 and is stamped CB 10 26. The posi carrier is stamped 9 22 1. I bought the car in 67 so I know that since then it hasn't been changed. What would explain this? Were cars pulled off the line when parts were not available? or possibly a dealer changeout?
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Re: Differential Numbers
Sounds like Chevrolet Service at a dealership replaced the original posi with this unit for some reason or the other.
Dale. -
P.S.
The only thing that bothers me is the "CB" code. That's production Corvette specific. The service replacements were void of this code. Perhaps this was a trade-out deal and this posi was unique to another production Corvette. I believe the 812's were passenger car and truck items as well.
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