Anyone Know if Rear Disc Brakes from an 8.25" will mount to an 8.75" Rear End?

[Cudaragtop]

Does anyone know if 2000 Jeep Cherokee 8.25" Rear End housing Disc Brakes will mount to an 8.75" housing?
Would like to run them on my 69 Barracuda 8-3/4. I like that they have the drum e-brake incorporated and should be inexpensive from pick-a-part...

Also not terribly expensive if the conversion from Summit will bolt on.  $499
 https://www.summitracing.com/parts/gta-96-2049-db


Going with 11.75" Drilled/Slotted rotors and Mopar pin on style calipers up front, ala Chrysler Cordoba.

[Cudaragtop]

Anyone?... Bueller Bueller Bueller

[Chryco Psycho]

Never tried it !
 I assume the mounting flange is the same the issue I can see is the distance from the flange to the rotor which should be possible to shim the caliper or mount to line up if it is different

[Cudaragtop]

Thanks CP!
I met a guy that has them on his 8.25 rear 73 Duster and he thought it should be the same for an 8.75 
Would like to know for sure though.
Guess I could look up and compare the measurements for an 8.25 and 8.75 flange to flange? 

[Chryco Psycho]

The same brakes were used from 8.25 & 8.75 rears for sure , I have done that

[Cudaragtop]

Thanks CP.
Now to see if I can find a used set or maybe just go with brand new from Summit. Will see if there are any on CL or local wrecking yards first.

[larry4406]

Keep us posted on  this.  I have read about this conversion before.

Link with some detais
http://www.forabodiesonly.com/mopar/threads/rear-disc-from-grand-cherokee-on-a-8-3-4.81400/

[Cudaragtop]

Found this kit on EBay for $387 shipped and bought it. New Open Box.
Have the 8.75" all apart so as soon as it arrives I will see how it fits.

Does anyone know if 2000 Jeep Cherokee 8.25" Rear End housing Disc Brakes will mount to an 8.75" housing?
Would like to run them on my 69 Barracuda 8-3/4. I like that they have the drum e-brake incorporated and should be inexpensive from pick-a-part...

Also not terribly expensive if the conversion from Summit will bolt on.  $499
 https://www.summitracing.com/parts/gta-96-2049-db


Going with 11.75" Drilled/Slotted rotors and Mopar pin on style calipers up front, ala Chrysler Cordoba.

[72bluNblu]

From what I understand you'll need to make some custom parts to make the Jeep disks work on the 8 3/4.

Here's a couple of threads from guys that have tried/done it. This is on the A-body site so be careful as some of the info may be SBP related.

http://www.forabodiesonly.com/mopar/threads/jeep-rear-discs-on-an-8-3-4-axle-solution.105241/

http://www.forabodiesonly.com/mopar/threads/rear-disc-from-grand-cherokee-on-a-8-3-4.81400/#post-728515

[Cudaragtop]

Thanks blu!
I knew there had to be something more than bolt on and go...
Have the rear out and disassembled. Planned on new axles anyway, they will need to be 5/16"longer...
Looks like blue missile got it all figured out and documented.     

Quote from blue missile FABO

"OK, here is what I have learned:
Jeep changed their rear disc breaks in the year 1999,They went from an 11.25" rotor set up to a 12" rotor set up on all of the models. Maybe these are the ones everybody's having trouble with.
However before that the 11.25" rotor setup will bolt directly on to the 8 3/4" axle and everything centers up. I even got new pads to check the fit and all is good.
As it happens without knowing this I ended up getting the smaller setup.These were off of a Cherokee not a grand Cherokee.It couldn't fit more perfectly if it were engineered for this axle!Isn't God good!"

(Cherokee not Grand Cherokee brake kit is what I bought!) 

There are mods required, detailed in the thread you linked.
Have not received the Kit yet but will update when it gets put together.

[Mpdlawdog]

 

[EB3-GranCoupe]

Me too......
 

[Cudakiller70]

  ok I'm in me three