My 02 Mountaineer 4.0 AWD has different size pistons on the rear calipers. The Dr side rear is larger where the pad clips into it then the right side. I'm running into trouble trying to buy Rear pads for it. The pad thats supposed to clip in it is way too small and just falls right in and is sloppy. Even the bolts that hold the calipers on are different sizes. I'm stumped
Being 20+ yrs old , dont know the mileage , but have the pads not been changed before ? No part numbers on old pads by chance ? Why it would have different callipers fitted beats me and would be interested to know the reason why .
That's my thoughts exactly. Never came across this in all my years of wrenching. I'm calling the auto store and have them check there books and pull a couple of them off the shelves and check them out
I bought it about 3 years ago with a bad transmission. I put a fully remanufactured one in myself because I have a hoist in my pole barn- garage. I was just changing the pads and rotors and going over everything getting it road ready for my trip from TN to Northern Michigan for our yearly family reunion around the 4th of July. . Strangest thing I've ever encountered also. If I keep it long enough to do another brake job I'll change the caliprers so they match. I just spread the 3 little ears on the pad that fits into the piston out wider with a pair of channel locks and it fits good and snug now.
I'd bet PO replaced that caliper at some point. Perhaps couldn't find the right one, but what he did find fit close enough to use.
Probably did the same as you just did with the pads.
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