Ring and Pinions have been propelling muscle cars, trucks and four wheel drive vehicles down highways, drag strips, back roads and over the world's roughest terrain for nearly a decade. These affordable high strength gear sets come in all the popular ratios to satisfy everyone's gearing needs. Oversized tires require higher ring and Pinion ratios to restore performance. Made from high quality 8620 forgings and Gleason gear cutting technology, these gears are made to last. Complete installation kits are available separately to complete the job.