View Single Post
Old 11-13-2023, 07:03 PM   #3
NVS-C10
Registered User
 
NVS-C10's Avatar
 
Join Date: Mar 2014
Location: Rosemead, CA
Posts: 419
Re: 65 C10 Swapped 3 on the Tree to TH400 - Gearing

Quote:
Originally Posted by 65Oldred View Post
Hello,

Awhile back we dropped in a "new" V8. While we had the truck apart, we replaced the 3 speed because it appeared to be shot (and it was) with a rebuilt TH400.

The gearing must be off. It drives like it could pull out a tree stump but seems constrained at highway speeds. (I believe the truck has the original rear end.)

Is the combination of a TH400 and gearing in the differential a problem?

Would going to a TH350 or 700R4 solve this problem?

Thanks.

200-4R or 700R4.. the 200 will be closest in size to what you have now; should mount right up.
NVS-C10 is offline   Reply With Quote