adamk

So, I have been looking into re-gearing my axles and started with a search at the local jy for a 4 banger with 4:10 gears with no success. Well, I started looking else where for other solutions. I ended up finding a 94 grand with 3:73's. My question is, what is the difference between the d30 in the grand versus the d30 in the xj? are they direct swaps? If so, I can get the entire axle for about 75 bucks and it saves me from having to do all the gear work in the front.

Thanks,
Adam

jbetit

first off, what size rubber do you want to run?

xjmarc

Difference is you have a high pinion and it's low pinion, possibly has cvs instead of u-joints in the axles and could have a cv yoke as well.

xjmarc

Sorry double posted.

adamk

I'm going to 33's after i wear out my 31s. If the ZJ d30 in a lp then I'm not gonna switch it. I'm still at stock gearing of 3:55 and any little bit would help me.

customzj73

First your giving up your HP Dana 30 for a LP30 which may give you vibes and has cv axles instead of u joints- its generally a down grade. But its your jeep do what you want man

Gorillaxj

I would hold out for a better setup. when doing something like swapping axles and gears you really only want to do it once.

customzj73

X2

jbetit

With just running 33s, I would keep what you have under the Jeep now. Just be smart about it and don't try to smash a dent in the floor from the gas pedal. Heck, I ran 35s on stock axles before I did my swap. Just be easy on the gas, pick the right line, and you will be fine.

xjmarc

The difference between 3.55s and 3.73s is so small I doubt you'd notice it anyway.