The Truth about Gears and Tires

[UselessPickles]

Here's the chart for the 3.6 engine:



I'm dreading making the gearing decision. I have the 3.6 engine, manual transmission, 3.21 gears and the smallest stock tires (29"?). I eventually plan to go up to 33x12.5x15 Duratracs. I'm happy with the way it drives stock, and 3.73s would get me slightly shorter overall gearing with the 33's (which are actually more like 32" or 32.5") than I have right now. I think I'm going to have to ignore all the typical forum comments about "if you're going to re-gear from 3.21, then at least go to 4.10, or else you'll regret it and re-gear again."

I'm really just going to have to wait and see how the 33s do with 3.21 gears. I plan to have some sort of forced induction, and I have a light-weight 2-door with no plans for heavy bumpers, etc. It might be just fine with 3.21s

[JeepLab]

Here's the chart for the 3.6 engine:



I'm dreading making the gearing decision. I have the 3.6 engine, manual transmission, 3.21 gears and the smallest stock tires (29"?). I eventually plan to go up to 33x12.5x15 Duratracs. I'm happy with the way it drives stock, and 3.73s would get me slightly shorter overall gearing with the 33's (which are actually more like 32" or 32.5") than I have right now. I think I'm going to have to ignore all the typical forum comments about "if you're going to re-gear from 3.21, then at least go to 4.10, or else you'll regret it and re-gear again."

I'm really just going to have to wait and see how the 33s do with 3.21 gears. I plan to have some sort of forced induction, and I have a light-weight 2-door with no plans for heavy bumpers, etc. It might be just fine with 3.21s

We need snarf to weigh in, He just geared to 4.88 with 37s and no forced induction.