posi switch-

crustysack · 10-15-2008, 07:00 PM

I have installed an 04 LS1 with 6 speed tranny into my 65 - it has the stock rearend and I am going to switch to a posi- any suggestions on either an Eaton unit or an Auburn Gear? I will probably be going with 3.55 final to try and match the final drive of the 04 which is 3.46. thanks

Rukee · 10-15-2008, 07:24 PM

I just installed an Auburn unit and it's working great.

crustysack · 10-15-2008, 07:46 PM

thanks-what motor do you have and approx hp

Rukee · 10-15-2008, 07:49 PM

I have a factory correct 389 Tri-Power 4-speed car rated at 360HP.

....course we all know they under-rated em.

Fred007 · 10-23-2008, 12:38 AM

When you say stock rear, is that a Chevy 10"? I am planning on putting in a LS3HC in my '65 and currently researching what I do with the rear. On my Jeep, planning on an Auburn locker as they have gotten some great reviews. Like the LSD default with the electric locker. Jeep has a 2000 LS1 so puts out a pretty decent HP. Also, the Eaton units get rave reviews on the Jeep forum, but a little bit more $$.

Fred007 · 10-23-2008, 12:40 AM

Out of curiosity, what did you do for fuel delivery for your LS1?

dtroit · 10-25-2008, 02:04 PM

whats the gear ratio in the orig. rear?