Drivetrain > Transmissions

400 trans

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Jim:
Hi ,just got a good running st400 (20years ago) so who makes the best overhaul kit  any real problems to look for /up grades? Jim

GS66:
We have one in one of the 66 GS cars. Works great, only upgrade I did was a B & M shift improver kit so it chirps the tires when shifting to second manually under heavy acceleration. Finned aluminum pan will aid cooling.

Jim:
Hi ,it's even sitting so long I at least want check it over  all new seals anyway,clutch pack.  Jim

gssizzler:
Oregon Performance Transmission, Cars,and Fatsco are good sources I would check current reviews ! As far as tech and questions I had the easiest time with Fatsco! Got parts for both st300 and th400 from these vendors! If you have a trans shop in town usually they can recommend vendors also! I would also post this ? On V8Buick site also!

Jim:
Thanks ,now I can move on to the puffing  smoke when starting after its warm.Jim

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