I have heard that if you install a lunchbox locker you wont have room for 4.56 gears. I am wanting to lock my rear 29 spline 8.25(99 xj sport) but I do not want to limit what gears i can use later. Is anybody running this set-up? do you have to notch the ring gear? if so how? any problem with 4.10's? do some lunchboxes leave you with more room? i know i have a lot of questions but any and all help appreciated!!

 

Don't you have to change the carrier to go above 3.73's anyway? If so, your locker with the stock gears probably won't fit .

 

i currently have 3.55's...just dont want em forever

 

Right. And I think that in order to go to a 4+ ratio you will have to change out the entire center carrier. The new gears won't fit on the 3.55 unit.

 

I've seen post's talk about grinding the center pin, still need a new carrier?...aussie on the way BTW!!

 

Some misinformation here, lemme try to clear this up.

#1)
There's no carrier break for a Chrysler 8.25". Same carrier is used from 3.55 through 4.88

#2)
A Lunchbox locker can be installed without removing the carrier,

#3)
The ring gear will need minor grinding in order to remove the cross shaft for 4.10, 4.56, and 4.88 gears.

A Dremel with a few 60 grit sanding drums works perfectly.

Powertrax, Lock-Right, Aussie...No difference in the need to grind the ring gear, it has to be done with all of them.

 

Well thats good news, I appreciate the information!!!
anybody got pics of shaving the ring gear?

 

Don't confuse shaving a ring gear with grinding a few teeth.

Huge difference.

 

Would love someone to "draw me a picture". Never worked on a locker...noob I know

 

Yay google!!!

 

Google Images has a lot of pics to illustrate grinding the ring gear.

 

Got it..thanks