Polyurethane Differential Cover Bushings (E36, E46 M3, Early Z4M) Add Aluminum Washer Upgrade:Add Washer Upgrade Made of 19 gauge steel

Made of 19 gauge steel Weldable or boltable Weights only 5lbs (as opposed to the spare wheel wells 12lbs + spare tire/rim) - Possible weight savings of 60lbs If made bolt-able

Fits: Fits OEM style E30 IS Lips (part # 51711968488)  Does NOT Fit: Early Model Valence

The front control arm bushings for these cars is also an important maintenance item that should be addressed right away to prevent a possible accident and costly repairs

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Polyurethane Differential Cover Bushings (E36, E46 M3, Early Z4M) Add Aluminum Washer Upgrade:Add Washer Upgrade Made of 19 gauge steelBMW E36 E46 M3 Early Z4M POLY DIFFERENTIAL COVER BUSHINGS 33171134872 If you have ever been in your car and put it in first gear or take off from a dead stop, you may have heard and felt a loud thud coming from the trunk area of the car. This is a sure sign that your differential mounting bushings are worn out or failed. If you speak in BMW part numbers, then that's 33171134872. These mounts will help eliminate the slop and play in the differential