Porsche CMS Side Cover - 930 76-88 CMS-930-SC 547052911S Porsche Upper steering box seal

Porsche Upper steering box seal for worm gear

924 (1980-1985) and 928 (1980-1982) models

Porsche Bumper shocks for 928 (1987-1991)

C2 (1989-1994) and C4 (1989-1994)

Helio Castroneves

Porsche CMS Side Cover - 930 76-88 CMS-930-SC 547052911S Porsche Upper steering box sealPorsche The original Porsche 930 transmission differential side cover is made of cast aluminum, not to mention its pretty thin. Under load there can be a tremendous force applied to this cover, and it can break, sometimes resulting in a damaged ring and pinion or worse. Upgrading to a billet side plate will add significant strength and increased reliability to the differential section. Our design features include: A ring gear thrust bolt to reduce