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E36/7 Z3 (1996-2002)
E36/7 Z3 Roadster, Z3 coupe, Z3 M Roadster and Z3 M Coupe talk with our gurus here.

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Old 07-09-2013, 05:51 AM
kayjay kayjay is offline
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Location: nola
 
Join Date: May 2013
Posts: 22
Mein Auto: 2002 z3
Z3 clunk in the rear end. good answer!

Ive heard a clunck in the rear end may be a normal thing but this makes more since to me..

All of the subframe bushings/diff mount+bolt should be done at once. Several aftermarket poly replacements are available and do not add too much NVH. There is apparently a different bushing (same size) for the front of the M3 subframe, I don't know what the difference is but have included it below. Have all of these bushings done at 75K miles if not beforehand. A clunk or thud under acceleration is the most common sign of something amiss with the subframe or diff mount.

Subframe Rear Bushings (62.5mm): [33-31-9-059-301]
3-Series Subframe Forward Bushings (60.5mm): [33-31-9-059-300]
M3 Subframe Forward Bushings (60.5mm): [33-31-9-066-671]
Forward Diff Bushing: [33-17-1-134-910]
Diff Ear Bushings: [33-17-1-134-872]
Forward Diff Bolt: [33-17-6-750-780] (M12x1.5x80)
Reinforcement Plates: [4111225649], front left [41-00-2-256-495], front right [41-00-2-256-496], rear left [41-11-2-256-497], rear right [41-11-2-256-498]
10.9 Metric Grade Diff Bolt: [33-32-1-090-693]


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