[will slow gto]

Originally Posted by roger1

I just ordered a set of the Yukon axles that are 1541H Alloy.
Now I'm trying deciding on where to buy the rest of the parts I need for the rear.

I'm now thinking about going with 3.55 gears instead of using the stock 3.23. I think it will be a little bit better of a match with what my plans are.
I've already have a new Lunati 60902 cam and lifters that the seller gave me. I like the specs on this cam. SPECS
My tire diameter should be 27.5" and I'm planning on a 200-4R automatic and an Edelbrock Pro Flo 4 mpfi setup.
I calculate that a 3.55 rear would yield just a touch over 2,000 rpm at 70 mph. The 2.74 first gear would also give a 9.73 torque multiplication which I think would be good using a normal converter rather than a high stall.

I am also going to order an Auburn Gear posi carrier for it. I've had good luck with them. I'm also going try and find new Timken bearings for the pinion, carrier and axle bearings.

If you don’t have a good differential shop in town or if you have questions, I’m sure Jim Mitschke -JD Race/monzaz can point you in the right direction. Those last two are his shop name and PY Forums user name. He has an eBay store too. Also there’s Ol Pinion Head on here, he knows more about these rears than just about anyone. Search for him here on PY Forums.