Revolution Gear & Axle D80-355 3.55 Ratio Ring & Pinion for Dana 80 Standard

Vehicle Fitment

• Universal fitment for vehicles equipped with a Dana 80 standard-rotation axle - verify axle type, rotation, and housing before purchase.

Features

• 3.55 final-drive ratio engineered for Dana 80 standard-rotation differentials
• Precision-machined ring & pinion gear set built to OEM-style tolerances
• Constructed from high-grade 8620 alloy steel and fully heat-treated for durability
• Optimised for improved highway performance and heavy-load capability
• Enhances torque delivery at lower engine RPMs under load or while towing
• Smoother and quieter operation thanks to a refined gear-cut pattern
• Backed by a 2-year limited manufacturer warranty
• Designed for use in Dana 80 standard-rotation applications across truck and SUV platforms

Specifications

• Gear ratio: 3.55
• Ring gear rotation: Standard (non-reverse)
• Pinion splines: 37 splines (typical for Dana 80 standard-rotation)
• Ring gear diameter: approx. 11.25"
• Ring gear bolt thread: 12 x ½"
• Carrier break: Suitable for 3.73/4.10 ratio carriers and lower
• Cover bolts: 10-bolt pattern common for many Dana 80 housings
• Material: 8620 alloy steel, heat-treated
• Warranty: 2-year limited

Included Components

• 1x Ring gear
• 1x Pinion gear
• Ring gear bolts **not included** - reuse factory bolts or purchase separately

Product Description

The Revolution Gear & Axle D80-355 3.55 Ratio Ring & Pinion set is engineered for vehicles fitted with a Dana 80 standard-rotation axle. This moderate gear ratio makes it an excellent choice for improved fuel efficiency, lower engine RPM at highway speeds, and reliable performance under load. The premium 8620 alloy steel construction and precision machining ensure long-term durability and smooth, quiet operation.

Installation involves removing the differential carrier and correctly setting backlash, gear-pattern, and preload. While this kit is built for the Dana 80 standard-rotation axle type, you must verify your axle's rotation, ring gear diameter, bolt-pattern, pinion spline count, and housing before purchasing. The kit includes only the ring and pinion gears; ring gear bolts must be reused or purchased separately.