Corvette; 7.0L; 3.42 Ratio. The Differential Carrier assembly is a Housing that is used to hold all of The Differential components and includes those components (Differential side & pinion gears, The ring gear, shims, washers, bearings, pinion pin, clutches etc.). The Housing of a Differential that holds The gears, pinions, Differential case, etc. Axle. CASE. Side cover. Spacer.