GM Corp. 7.5" rear axles- Ring & Pinion

Applications: 79-up S-Series Pick-Up & S-Series Blazer rear axles
Case Changes: Low 2.73 - 3.08 and High 3.23 - 4.56

GGGM10-75-308 3.08 ratios

GGGM10-75-342 3.42 ratios

GGGM10-75-373 3.73 ratios

GGGM10-75-410 4.10 ratios

GGGM10-75-456 4.56 ratios