Brake Caliper Question

[trackstar8652]

I have a 98 xj, and my comanche is currently down and not running for quite a while (long story) it is an 87 4.0L 2wd, and my xj is a 98 4.0L 4x4, i am wondering since my comanche has brand new calipers on it if i could interchange them into my xj since one of them is seized up pretty bad on my xj. I have looked them up online and i don't believe they are different at all, although they do have different part numbers. thanks!

[Eagle]

Here you go. As when I posted this previously, this is from a draft of a book I started. This material IS copyrighted, by me, and by posting it here I do NOT grant anyone permission to reproduce it anywhere else.

 

Please respect that.

 

In general, the parts to be concerned with in keeping the front brakes compatible are the steering knuckles, the hub/bearing assemblies, the rotors, and the calipers. (There is a more complete enumeration of the interrelationship of these parts in Chapter 6, Axles.)

 

• Only two steering knuckle designs were used: 1984 through 1989, and 1990 through 2001. Left and right side knuckles are different part numbers within each group.

 

• Three different hub/bearing units were used. The hub/bearing units are the same for both sides of the vehicle. The different years for hub/bearing assemblies were: 1984 through 1989; 1990 through mid-1999 (composite rotors); and late-1999 through 2001 (cast rotors).

 

• Three rotor types were used: 1984 through 1989; 1990 through mid-1999 (composite); and late-1999 through 2001 (cast).

 

• Only two caliper types were used: 1984 through 1989, and 1990 through 2001. Left and right side calipers are different part numbers within each group.

[Incommando]

Does this information apply to both 2wd and 4wd front brake systems? Or are the 2wd version in addition to the listing above?