thebrick
NAXJA Forum User
- Location
- Chattanooga Area
Live and learn…
I remember reading on this forum a while back about someone trying to replace the rotors on their cherokee…but the new rotors did quite fit right…people were suggesting that maybe the parts store gave him grand cherokee rotors instead of rotors just for the standard cherokee…
Well, I'm not sure if it was ever resolved, but I had an interesting experience with replacing the rotors on my 2000 XJ this past weekend…
I had planned on working on my front brakes for a couple of hours this past weekend, so I bought all the parts I would need beforehand…rotors, pads, brake clean, hi-temp grease, etc.
When I went to get the rotors, there were two version listed on the parts computer…one was a composite rotor and one was solid cast iron. The composite rotor was about $20 cheaper. But one thing I did notice…on the parts list…it stated that the composite rotor has a height of 3 3/16 in and the solid cast iron rotor was 3 1/16…I would learn what this actual means later…
I did ask the guy behind the counter what the differences where between the two…he gave some answer about how they are manufactured different (well, duh) but either one should work on my XJ…WRONG! I took the composite rotor since it was cheaper and both made by Raybestos.
Well, long story short…if your XJ came or was made for the full cast iron rotor…the composite rotor will not work because it is 1/8 in too tall…when you have everything bolt down tight…the back of the rotor presses against the hub/steering knuckle assembly. In other words, it will not turn.
So, ended up taking both rotors back to get the ($20 more each) full cast iron rotors….perfect fit.
I remember reading on this forum a while back about someone trying to replace the rotors on their cherokee…but the new rotors did quite fit right…people were suggesting that maybe the parts store gave him grand cherokee rotors instead of rotors just for the standard cherokee…
Well, I'm not sure if it was ever resolved, but I had an interesting experience with replacing the rotors on my 2000 XJ this past weekend…
I had planned on working on my front brakes for a couple of hours this past weekend, so I bought all the parts I would need beforehand…rotors, pads, brake clean, hi-temp grease, etc.
When I went to get the rotors, there were two version listed on the parts computer…one was a composite rotor and one was solid cast iron. The composite rotor was about $20 cheaper. But one thing I did notice…on the parts list…it stated that the composite rotor has a height of 3 3/16 in and the solid cast iron rotor was 3 1/16…I would learn what this actual means later…
I did ask the guy behind the counter what the differences where between the two…he gave some answer about how they are manufactured different (well, duh) but either one should work on my XJ…WRONG! I took the composite rotor since it was cheaper and both made by Raybestos.
Well, long story short…if your XJ came or was made for the full cast iron rotor…the composite rotor will not work because it is 1/8 in too tall…when you have everything bolt down tight…the back of the rotor presses against the hub/steering knuckle assembly. In other words, it will not turn.
So, ended up taking both rotors back to get the ($20 more each) full cast iron rotors….perfect fit.
