TH 400 Experts.... [Archive] - The Supercar Registry

WILMASBOYL78

05-06-2005, 05:08 AM

Did GM install different governors in the TH400 trans for the different gear ratios in the rear? EG; 3.55 vs 4.10 in a BB Nova or Camaro..

tom http://www.yenko.net/ubbthreads/images/graemlins/worship.gif

Mr70

05-06-2005, 05:59 AM

The Governor used was dictated by the engine,not the model or rearend ratio.
Example:
*1970 Hi-Perf 402 & 454 engine used Governor #8625622.
*1970 Spec.Hi-Perf 402 used #8626866 & Spec. Hi-Perf 454 used #8626612.

CamarosRus

05-06-2005, 04:22 PM

While on the T-400 subject........where can I find a web site or info on what trans gear to use with a given tire DIA and 3:31 gears...........and then where to buy colored gear and HOW to install/change gear.........

Thanks, Chuck S

@wot

05-06-2005, 04:33 PM

Try this link.

http://www.novaresource.org/speedo.htm