kylemackechnie

Hey guys, i know that there are many threads about xj gearing bu they are all about what gears to get.
Since i dont know much about XJ gearing (im sure im not in the minority here), i need to know what i need to buy to get 4.11 gears in my 1999 XJ Sport with LP Dana 30 in front and Chrysler 8.25 in back.

Would this be all i need for the front: http://www.ebay.com.au/itm/Dana-30-R...ht_2012wt_1397

and back: http://www.ebay.com.au/itm/Chrysler-...ht_2296wt_1397

Any explanation is greatly appreciated

Thanks
Kyle Mackechnie

ZINGGG

No that's not all you need. You'll need master install kits for the front and back as well as a new carrier for the front.

What transmission do you have?
If you have a manual, you want 4.10 gears.
If you have an auto, you want 4.56 gears.

I'd recommend going through either Serious Offroad or RWKHausSupply (both users on this forum) to get your gears. You'll get a quality brand and I believe you'll get some sort of warranty with them.

dukie564

^x2

4.56s for an automatic and 33s

kylemackechnie

With 33s and 4.56s, does the economy go to crap? Or it's it the same as stock?

dukie564

close to stock - with slightly more power to move the larger heavier tires

jebmccall

check out rwkhaussupply. i just got my gears, carrier, front ball joints, install kits and rear wheel bearings for 615 shipped!!! and it was at my house next day. btw with a 99 you should have a hp 30

i chose 4.56s be cause i am going to put 35s on it in a couple of months. i also have the aw4

MountiansRcool

i have the 5 speed tranny and i run4.56s in the diffs. i have 33 inch tires, its a little over geared but i like it.

Tom95YJ

Within the next month I am putting 4.56's in my 99 with a Auto and 33's

A few guys I wheel with run 33's with 4.10's and Auto's with their XJ's they say they wish they went with 4.56 gears

kylemackechnie

so without lockers, what sort of cost is it to regear a 99 auto?

dukie564

prices vary, but you're looking at...

~$200/axle for the ring and pinion
~$100/axle for the install kit
~$200-400 for the labor to install them

Xj88

I suggested (via PM) that you go with the kit from RWKHAUS with the gears, air lockers, compressor...Comes with everything youll need.