[ashzook94]

iv'e got a 4 inch lift in my red sierra and want to run 32's wat would be the right set of gears to run in it i currently have a 1 litre case with 30's but i am planing on taking that out..? wat is the best opinion

[alien]

6.5 gears would do it.

[Scrawny]

alien wrote:

6.5 gears would do it.

X2. And 3.9 diffs if you want a bit more

[skyman]

4:1 case and 4:30 diffs do it too. That puts you about right on the freeway for power and mileage (LPM?), and at a pretty good rate off road in low.

I just swapped out my 4:1 and 4:30's for a5:xx case because it was brand new and twin sticked.

5:xx case and 3:73's are a go for that tire too.

So 6:5's
or

4:1 and 4:30 diffs. (this was perfect for the road)

Or

5:1 case

I like to gear the case a little less than is needed, so I can fine tune with diff gears. It also takes some stress off the case having some reduction in the diffs as well as the transfer.

With just a 6:5 case, and big tires you need a cradle for sure, The case wants to do circle flips in it's mounts.

You might want to measure your tires, my 33x12.50's measured out a 32" when at street pressure under the weight of the rig.