Jeep D30 help

SNOWTHROWER · Feb 25, 2007

Hey all, I got a couple questions that should be easy for a jeep guy to answer. It's a high pinion D30, non disco.

As I understand there is a gear split for the D30, so I will need a new carrier to install gears. But what is the split? Also I have a loc-rite from a buddies jeep, will it work on both sides of the split or do I have to figure out which one I have?

Also, I got no brakes on the axle. Are all brake calipers, rotors the same or are they year specific?

Littlexj · Feb 25, 2007

I believe that the carrier break is 3.73+ and the brakes are the same from 90+ on XJ's, TJ's and ZJ's.

SNOWTHROWER · Feb 25, 2007

I thought that is what the split was... I had read it some place but was not sure

Cascade_Crawler · Feb 25, 2007

The rotor, caliper, and unit bearing are all different between the two brake designs. 1991 is when the "new" brakes started.

SNOWTHROWER · Feb 25, 2007

OK how do I tell which I have need, the axle has no calipers or rotors installed.

Cascade_Crawler · Feb 25, 2007

Measure the unit bearing from the backside to the wheel mounting surface and post it here. I can measure a spare in my shop and let you know...

Littlexj · Feb 26, 2007

2 piece knuckles, meaning a bolt on caliper bracket is the earlier style.

Cascade_Crawler · Feb 26, 2007

Littlexj said:
2 piece knuckles, meaning a bolt on caliper bracket is the earlier style.

Duh, man I'm dumb totally forgot about that. :looser:

SNOWTHROWER · Feb 26, 2007

OK cool, so I have the late model brakes then? I have a one piece knuckle, the brake retaining arms are cast as part of the knuckle.

OK so now the last question is will the loc-rite I have work on both sides of the gear split?

KarlVP · Feb 26, 2007

Yes, the locker will work no matter what carrier you have it in.

W.I.P. · Feb 26, 2007

I am sorry, I forgot to give you the brakes that where on it, They are crap but you can come get them if you want them. You would have to rebuild them, but they are free.

SNOWTHROWER · Feb 27, 2007

Oh awsome man, is there any way I could swing buy tomorrow and get them?

I'll PM you my number...

W.I.P. · Feb 27, 2007

They are on the corner of the garage.

SNOWTHROWER · Feb 27, 2007

OK one more question..... I hope.

Will a D30 carrier from a CJ5 work in my newer reverse rotain D30?

Will any 3.73+ carrier fit any of the housings, low pinion or high pinion?