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E36 M3 (1992-1999) {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999


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Old Sat, Dec-18-2010, 04:53:50 PM   #11
SlickmisterN
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Default

If you had polly at all locations delrin is going to be softer... For the RTAB 80a is about the same stiffness as the stock rubber. I wanted things a bit stiffer, and I can tell a minor difference with the AKG 90As. But its the good type of firmness and support back there. Not nearly as stiff as a poly would be at that location. I really like it so far but only have like 250miles on them. Cheers!
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Old Fri, Dec-24-2010, 08:17:38 AM   #12
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Default Re: rear passenger crunch/grind entering driveways

Replaced the rear spring pad and that didn't cure the crunch/grind... I feel like it has to be the e-brake. Any other suggestions?
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Old Fri, Dec-24-2010, 11:17:14 AM   #13
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Default Re: rear passenger crunch/grind entering driveways

The e-brake cable is not supposed to loosen or tighten with weighting or unweighting of the suspension, so this explanation seems unlikely unless the path of the cable was altered. Not sure what you could do inside the e-brake to screw it up that would be affected only by weighting/unweighting, but check the diagram linked below since sometimes it can take some fiddling to get all the parts back into the right places:

http://www.realoem.com/bmw/showparts...39&hg=34&fg=40
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Old Fri, Dec-24-2010, 03:47:15 PM   #14
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Default Re: rear passenger crunch/grind entering driveways

I have a very similar issue with my rear left suspension, when there is a full load in the rear it groans/grinds. Doesn't depend on handling situation or hitting a bump, unless the rear is loaded. I do think it might be the spring pad though, as I had the upper control arm replaced and I think they might have forgotten to put it back in.
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Old Tue, Feb-08-2011, 06:41:50 PM   #15
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Default Re: rear passenger crunch/grind entering driveways

Bump. Still have the load grinding on entering/exiting uneven pavement...
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Old Thu, Apr-05-2018, 11:24:50 PM   #16
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Default Re: rear passenger crunch/grind entering driveways

Hey just wanted to follow up.

This problem ended up being my aftermarket RTAB's that I somewhow screwed up installing.

Hope that helps someone.
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Discussing rear passenger crunch/grind entering driveways in the E36 M3 (1992-1999) Forum - {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999 at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)