Single leg to a Posi unit ?

[ck5566]

Originally Posted by davepl

You can re-use your existing gears if you buy the posi unit in the same series carrier as the old one. Don't know if you want to, just saying.

I'm still worried you're going to wind up with too steep of gearing with truck tires and an overdrive though. I sure wouldn't go any taller than 3.42, because as pointed out above, with overdrive that's like a 2.40 or something.

At a later date I will put in a 350 in the 450 HP range, thinking that much HP will pull a lot better than the 305 (200'esh HP) would. The change in gear ratio & posi wont be until the engine swap. Maybe you or someone else gave me 2 links for how to do the Math (well it calculates for you) on Tires, Rear Gears, Trans "OD", and other stuff I Cant Remember At This Moment that I have looked at and am now seeing what changing thing does to the overall package. Thanks Guys