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Rear brakes 9" -> 10" ?
- Thread starter Matt89XJ
- Start date
RCP Phx
NAXJA Forum User
- Location
- Phoenix,Az
Yes, if you change out the backing plates and wheel cylinders also.
RCP Phx
NAXJA Forum User
- Location
- Phoenix,Az
BTW: it would only be worth it if you stepped up to the HD brakes(10x2-1/2") and not the 10x1-3/4" std drums.
lazyxj
NAXJA Member #1310
- Location
- Los Angeles
RCP Phx
NAXJA Forum User
- Location
- Phoenix,Az
You would still have to modify that kit. I can buy a complete ZJ axle w/ brakes for $200.
- Location
- NJ, U.S.A.
What changes do you have to make to the kit?
RCP Phx
NAXJA Forum User
- Location
- Phoenix,Az
The OP has a non c-clip axle which has a different flange bolt pattern. You would need to drill out the backing plate, it's been done many times.
lawsoncl
NAXJA Forum User
- Location
- North Idaho
Depending on the donor vehicle, you might also need to make a spacer to hold the bearing race in. I'm running early 90s crown vic discs from the junkyard on my 89. The backing plates bolted right up (I think it's the same pattern as the D44?). I just had to make a couple of spacers, pickup new hoses, and put some metric ends on the brake lines.
lazyxj
NAXJA Member #1310
- Location
- Los Angeles
I used the Quadratech kit as an example for someone who doesn't want to or have the ability to build their own kit.
I have about $200 the rear discs, using ZJ backing plates, new rotors, calipers, pads, hoses and hardware. The parking brake levers were modified to use stock XJ parking brake cables.
To accommodate the need for longer brake cables, the parking brake adjustment bracket was moved rearward.
https://www.flickr.com/photos/lwade/2491526558/in/album-72157605049387729/
https://www.flickr.com/photos/lwade/4114538730/in/album-72157605049387729/
RCP Phx
NAXJA Forum User
- Location
- Phoenix,Az
Teraflex is the only one I know of that has a kit for the early axles.
https://teraflex.com/shop_items/yj-87-90-84-88-xj-rear-disc-brake-conversion-kit
https://teraflex.com/shop_items/yj-87-90-84-88-xj-rear-disc-brake-conversion-kit
RCP Phx
NAXJA Forum User
- Location
- Phoenix,Az
It makes a big difference, what axle do you have?
I guess what ever is stock, no trailer package etc, no D44 if this year ever came with one.
RCP Phx
NAXJA Forum User
- Location
- Phoenix,Az
No, you either have a D35(almost total round bottom) or a Chryaler 8.25"(big flat area on the bottom).
Looks like the Chrysler.
RCP Phx
NAXJA Forum User
- Location
- Phoenix,Az
Then your best get would be KJ brakes, total bolt on!
