Rear Disc Brake Swap

[JGC403]

I'm trying to figure out what is the best way to put discs on the 8.25 in my truck. I know there are people using the disc brake setup from a GrandCherokee ZJ on the 8.25. But the ZJs use 5 on 4.5 bolt pattern and my ram has the 5 on 5.5 bolt pattern.

So is there enough meat in the ZJ rotor to have it drilled out to the larger bolt pattern, or can I convert my truck to 5 on 4.5 bolt pattern?

Has anyone done this before?

 

[85Rusty]

I'm trying to figure out what is the best way to put discs on the 8.25 in my truck. I know there are people using the disc brake setup from a GrandCherokee ZJ on the 8.25. But the ZJs use 5 on 4.5 bolt pattern and my ram has the 5 on 5.5 bolt pattern.

So is there enough meat in the ZJ rotor to have it drilled out to the larger bolt pattern, or can I convert my truck to 5 on 4.5 bolt pattern?

Has anyone done this before?

Use ramcharger axles and swap out the front rotors. Or else use the entire rear end out of the RC

 

[DodgeAddict]

Is the truck 2WD or 4WD?

 

[The Beast]

I wounder if the newer 8.25 disc setups have the 5.5 bolt pattern. I know the 8.25 continued to be made into the early 2000's. Cosmetically they look similiar but I know the internals changed in the late 80's.

 

[85Rusty]

I wounder if the newer 8.25 disc setups have the 5.5 bolt pattern. I know the 8.25 continued to be made into the early 2000's. Cosmetically they look similiar but I know the internals changed in the late 80's.

The rams and Dakota's are still 5x5.5 too my knowledge. I know for certain they are up to 2008

 

[JGC403]

The rams and Dakota's are still 5x5.5 too my knowledge. I know for certain they are up to 2008

Dakotas are 5 on 4.5 then they went to 6 lug.


Its a 2wd truck. I didn't want to have to buy new wheels.

 

[85Rusty]

Dakotas are 5 on 4.5 then they went to 6 lug.

Its a 2wd truck. I didn't want to have to buy new wheels.

The latest Dakota's are 5x5.5. I work at A wheel and tire shop....

 

[DodgeAddict]

When I do rear discs I use a universal caliper bracket ,rotors, etc that the Roundy Round boys use no worry about bolt pattern or any of that any size or thickness of rotor that you want Speedway Motors is where I buy my parts most of the time