188mm BMW Carrier Cap Machine Work

188mm BMW Carrier Cap Machine Work

When performing the 4-clutch upgrade on a 188mm differential, it is necessary to machine the carrier cap to permit additional clearance for the extra top side clutch.  We offer this machining service in-house at Thayer Motorsports.

After purchasing, you'll need to remove the bearing and send your good condition, cleaned cap to the following address:

Thayer Motorsports, Attn: Cap Machine Work, PO Box 100, Aldie, VA 20105

Shipping the caps is easily accomplished via a USPS small flat rate box.  Please make sure to insure the incoming shipment and retain the tracking number.

Typical return shipping turn around is a few days from receipt.



$ 62.99