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      01-01-2013, 01:45 PM   #13
Beedub
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Drives: 2007 Z4 M roadster vt2-500
Join Date: Sep 2007
Location: UK

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Quote:
Originally Posted by exdos View Post
Excellent find!

I fitted a set of H&R E46 M3 ARBs a few months ago, and I made and fitted some 7mm thick steel shims between the front ARB bracket and the chassis, which I think should prevent chassis flex and metal fatigue causing tearing. I didn't want to weld the shims to the chassis for the same reason that you've mentioned (rust developing around the welding point), but now you've brought this method to everybody's attention I'll definitely use the epoxy glue to stick my shims to the chassis.

I've got a spare shim lying around, so I'll scan it on my photocopier and upload the image in this thread so it can act as a template for anyone who wants to strengthen the chassis.

When I was installing the rear ARB, I had a very good look at the rear subframe and chassis, with the idea of possibly reinforcing the points of attachment. I thought the construction looked fine with no obvious points of weakness, so I left alone.
yesss!!! perfect get on this john and report back, whats your feeling on the Rear subframe mounts on the z4m???? im guessing we shouldnt need to worry ;-)
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