Brand new, in box, 4 series Eaton posi for GM 12 Bolt truck, 1965-1981, for 3.73-up gears, Chevrolet K5 C10 K10 G10 G20 pickup Blazer Suburban van, GMC K5 C1500 K1500 pickup Jimmy Suburban van. Eaton p/n ED 19556-010, online price $470, my price $435 Brand new 4.11 Motive Gear ring and pinion for GM 12 Bolt truck, 1965-1981, Chevrolet K5 C10 K10 G10 G20 pickup Blazer Suburban van, GMC K5 C1500 K1500 pickup Jimmy Suburban van. Motive Gear p/n GM12-411, online price $169, my price $150
Still available, also have the following: Good used original GM 12 bolt 3.73 ring and pinion $85. Rebuilt 12 bolt 4 series Eaton Positive Locking Differential, accepts 3.73 up gears. This is the second design with clutch packs on both sides. $275
