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Are Rear Upper Arm and Trailing Arm Bushings the Same?
I got DURO3725K and DURO3737K. They arrived in boxes labeled accordingly, but the bushings within box 3737 were 3725, so now I have four 3725 bushings.
After some research it seems like that the rear upper arm and the rear trailing arm pillow ball bushings are the same for the Evo X.
Can somebody confirm it?
Below is from the Cusco catalog showing the same part number (566 464 EV) for both locations.
Yeah, you’re right! The Cusco catalogue shows the same 566 464 EV part number for both the rear upper arm and rear trailing arm, so they should be interchangeable. You should be good to go!
Confirmed, I already installed the DURO3725K to both places. For the upper control arm I had to file it down a little bit since it was too "tall", didn't fit inside the subframe. The diameter was perfect.
I also filled up the holes with 80A polyurethane (Smooth-On PMC 780 DRY).
Yes. Also fun fact, the front LCA inboard bushing is NEARLY the same. I bought some old spherical Perrin bushings for the front LCA and turned down the bushing about .1 inches, then pressed them into my rear upper and rear trailing arm. I don't think they change the geometry..... well.... i hope they don't. I didn't pay that much attention when installing them.
