Originally Posted by gtx6970
for me personally it would come down to gear choices. And theres not much for the Dana in something street / hiway friendly
But with an OD trans and a set of 3.54';s may not be bad for longer drives


The 3.55s in the 8.25 now are a bit too long. They were great with a 42RE I had in the car earlier but with the Tremec 70 mph and it’s only turning 1800 rpm. With the small block I have to wind it up to about 2000 rpm to leave from a stop light and not have to wait for the engine to take forever to catch up in order to shift to second. If that makes any sense.

I had a Tremec six speed with 4.10s in another car that was great. That’s why I think 3.91s would be a good gear with this five speed.

Can 3.91s be found for a Dana?


‘72 Charger, 5.9 Magnum, Tremec 5 spd., Pro-Touring
‘14 Big Horn, Quad Cab, 4x4, 1500