if you can find a 4banger xj it would be a cheap gear change they have factory 410s thats how i got mine 100 buck for fron and rear at the upullit and you have the carrier if you need to go taller

 

heres a pic of my test run 38s and 65 410s gears

 

I didn't know that!!! Thanks for the info. I was also planning on 4.56's with my 33's and eventually 35's, but for u-pull-it prices I will definitely choose the 4.10's. I don't do much highway driving, and if I do it's usually a 20-30 minute ride maximum, so 4.56's would probably work pretty well for me. The added power around town would be greatly appreciated... except in the rain. I'm yet to see a 4 banger in the yard yet, but if I do I'll make sure to grab the gears out of it. What all do I need to grab to swap it over and will both front and rear fit my Xj as long as they're the same axles? I have a '94 with a D30 and 8.25.

 

don think youll find a 8.25 in that year i an dana 35 all bolts right in i took hole rears, even if you just get the front you have the carrier at agreat price

 

do you have the right speedo gear?

 

an auto will be at 2600rpms at 65 with 33's and 4.56's

 

I hover somewhere around 2000RPM when doing 70-75 on the highway. I'm running 31s and 3.55 gears.

 

that sounds better and im only 5 mphs off aint found the color i need yet at u pullit yard

 

at what speed are you off 5mph?

 

yeah^ you are off a % not a set number if you are of 5mph at 50mph you are off 10%...the revs is important i have 32s and 4:10s and roll down the highway right at 2000ish rpm at 60-70mph ish.....

 

that would be nice to find but hard to find around here.

 

took me a year

 

No, it will be not be turning over 3000 rpms.

65x4.56x336/33x.75= 2263rpms with auto

65x4.56x336/33x.79= 2384rpms with AX15

These are the true rpms at 65 if the tire size is correct. If Quadratech chart is not the same they are wrong.

Your Cherokee running 38s at 65 with 4.10s will be 65x4.10x336/38x.79=1861rpms. By the photo up there it looks if you are running in the neighborhood of 1861 at 65 depending on speedometer error.

 

that sounds about right.......i still think the 4:10s are the way to go i have 0 complaints with mine and i'm on true 32s "not elcheapos that measure 30"ish "

 

ah, i confused the ax15 final with the ax5 final of .85...