Their AX Series ring and pinions are designed to increase horsepower and efficiency by removing rotating weight. Motive Gear Performance: What the pros run! Ring and Pinion Ratio: 4.10:1. Pinion Spline Count: 27.
FORD 8.8 3.90 RATIO MOTIVE GEAR F888390 RING & PINION KIT
FORD 8.8 3.90 RATIO MOTIVE GEAR F888390 RING & PINION W/ RATECH INSTALL KIT
Motive Gear G888373 Ring and Pinion Set 3.73 Ratio GM 12 Bolt
Motive Gear G885342 Ring and Pinion Set 3.42 Ratio GM 8.5/8.6 in.
Motive Gear G875273 Ring and Pinion Set 2.73 Ratio GM 7.5 in/7.625 in
