Clunk / Rattle Right Rear Suspension

[TheMegalodon]

Hey, late reply but wonder if anyone can help. I have a somewhat similar issue. I have coilovers and i do understand they are to be rough, but from my engineering background, i know the small impacts i hit on the road should not be enought to cause such noises in the rear. I also have the J&M mount and the shocks i have have way less travel than stock fixed length. I did the math for motion ratio and it helped a lot. But i have a feeling these Mounts have enough clearance to make then rattle loud on any small bumps. However, i also think i need to replace the shocks with similar oem shaft travel. Did your belisteins have said similar lenght or were they shorter ? Also, has the steel type mount held up well? Thanks

Spherical bearing mounts are known to make noise after they get dirty with road salt and debris from winter driven vehicles (which my car was). The moment I switched the J&M rear shock mounts back to ford OEM steel ones that particular noise went away. Sadly I still have impact noise from the rear by virtue of the fact that this car’s rear suspension is not isolated well from the chassis. The direct bolt on metal to metal of the rear shock mount to the body results in a lot of harshness translated to the passenger compartment.
I can’t confirm if the Bilstein rear shocks are shorter than Ford OEM PP1 shocks, but I believe they were the same length. The car rides decent enough for being lowered on minimum drop BMR springs; however, the roads in my northern city are horrendous. With less shock travel and isolation, it’s going to be rough.

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[NoHarleys]

I have the Steeda billet shock mount and mine actually ended up being a rock that got stuck between the mount and the body. Perfectly wedged itself in the hole that was there.