I had a 94 5 speed on 31's.
4.10s were perfect on that jeep
How did you like it for highway driving? I just don't want to go too low and have the engine running at 5k rpm constantly to get 80mph :explosion:
I had a 94 5 speed on 31's.
4.10s were perfect on that jeep
How did you like it for highway driving? I just don't want to go too low and have the engine running at 5k rpm constantly to get 80mph :explosion:
Like others have stated, most likely least expensive, plug n pray for lower gearing is to get some Axles from an auto XJ, and swap them.
I'm currently running 3.55 geared axles with my 5 speed.
Its fine on the road here in flat Texas. However:
1. If I had to deal with the hills/mountains I did back in CA, I probably wouldnt be using 5th often.
2. When I switched to the Rubicon wheels/tires, I really felt the extra weight in acceleration and MPG.
3. Off-roading last weekend I was wishing I had more gear. Forgot how capable my last one was by comparison.
If you're on a tight budget the auto axles are a nice boost. But if you're spending cash, go 4.10.
You may want to make sure you can find a 3.90 gearset for the D30..I do live around mountains and lots of hills, so lower gears would probably be better for me. I also want to add lockers when I change the gears so I'll probably be better off just spending the money. I just found a set of 3.90 gears for the 8.25, that may be a good option for me
I agree, just figure for ease and availability 3.55 D30/C8.25 are the most common.I'm currently running 3.55 geared axles with my 5 speed.
Its fine on the road here in flat Texas. However:
1. If I had to deal with the hills/mountains I did back in CA, I probably wouldnt be using 5th often.
2. When I switched to the Rubicon wheels/tires, I really felt the extra weight in acceleration and MPG.
3. Off-roading last weekend I was wishing I had more gear. Forgot how capable my last one was by comparison.
If you're on a tight budget the auto axles are a nice boost. But if you're spending cash, go 4.10.
You may want to make sure you can find a 3.90 gearset for the D30..
You may want to make sure you can find a 3.90 gearset for the D30..
^^ this. If you research it, I think you'll find they don't exist so most folks just go up the next size, 4.10.
People, you are confusing the guy, the dude is only running 31s with a 5speed. I have a 93 with a 5 speed and 33s. I swapped in 3.55 axles from an automatic and the gearing is perfect. GPS shows my speedo reading 52.5 when I'm actually going 50. Close enough!
It sounds like the general consensus is that 4.10s should be the best option. I'll look into the 3.90s a little more but I'm strongly considering the 4.10sMy 2001 XJ has had three sets of gears, the stock 3.55s, 4.10s and 4.56s.
I ran 10.50 X 31s, with a AW4 for several years, first with 3.55s and then 4.10s.
The 3.55s did not do well going up grades, which is much of the time in the West, with the engine spinning too slow in overdrive.
Re-gearing, I found that 4.10s and 31"s were perfect for both highway driving and off roading. Driving became more enjoyable and my mileage didn't change.
If you can afford it, you will not regret it.
Well, it looks like the high pinion d30 uses reverse cut gears. I believe the link I posted are normal rotation. Looks like 4.10s it is
Not sure where you are at, but this would have 4.10s in the rear (its 2wd)
https://phoenix.craigslist.org/nph/pts/5430622375.html