Gear ratio

[budgetbuild]

Well the truck started with 225/70/14 then got 225/70/15 Now im starting my lift and putting 31-10.50-15 It still has the stock 3.55 gears what gear ratio would work well?

 

[alwaysFlOoReD]

I like 4.10 with 31" rubber. That brought my '85 b-II speedo back to stock readings.

Richard

 

[4x4junkie]

What engine?

Depending on that, 4.10 or 4.56 is best for 31s.

 

[alwaysFlOoReD]

Ahhh, I forgot about that. I have the 4.0l in my b-II

Richard

 

[budgetbuild]

Its got a 2.3

 

[4x4junkie]

Its got a 2.3

4.56 for sure then.