Yukon Gear Dura Grip Positraction For 55P GM w/ 17 Spline Axles

Yukon Dura Grip is a positraction limited slip differential that provides smooth yet aggressive traction, giving you the confidence and performance you need across a wide variety of terrains. The Dura Grip is engineered for long life and is completely rebuildable. Dura Grips are constructed with a high strength nodular case, forged 4320 chromoly spider gears, and composite clutches. For unmatched positraction performance, the Dura Grip is the ultimate choice. When your vehicle demands performance, durability and strength, choose Yukon Dura Grip. 55P GM 3.73 & down Yukon Dura Grip Limited Slip, 17 Spline; Positraction; Composite Clutches A factory thin ring gear was used on 1955-1956 carriers with ribs on the back of the ring gear side. The 1955-1956 open dropout casting numbers end with 306in. A new ring and pinion or ring gear spacer is required when replacing the factory 4 series case. Yukon recommends the use of high grade Non-Synthetic GL-5 gear oil and Yukon LSD (Limited Slip Differential) additive for long life and smooth operation. Part number OILADD. The use of synthetic oil is not recommended and may result in aggressive or noisy operation.

• All units are backed by extensive product testing and state-of-the-art software design
• Yukon Dura Grips feature 4320 chromoly spider gears for ultimate durability
• Gears are cut to provide the strongest teeth possible in any terrain
• Fully rebuildable design and proudly assembled in the USA
• Fits 3.73 Gear Ratio & Down (Also Fits Thick Gears)
• Limited Slip Differential with Composite Clutches
• Fits 3.73 Gear Ratio Down [Also Fits Thick Gears]
• Limited Slip Differential w/Composite Clutches
• Fits 55P GM with 17 Spline Axles
• Fits 55P GM w/17 Spline Axles

The Yukon Gear Dura Grip Positraction Differential is engineered to deliver smooth yet aggressive traction, making it an ideal choice for a variety of driving conditions and terrains. Designed for vehicles with a 3.73 gear ratio and below, this limited slip differential enhances your vehicle's performance by providing consistent power transfer to both wheels, boosting traction during challenging driving situations. Its robust construction ensures durability and long-lasting performance, even under demanding conditions. Crafted with a high-strength nodular case, forged 4320 chromoly spider gears, and composite clutches, the Dura Grip is built to withstand the rigors of off-road adventures and intense driving scenarios. This unit is fully rebuildable, allowing for maintenance and repairs to extend its service life, and is proudly assembled in the USA. The Yukon Dura Grip is compatible with factory thin ring gears used on 1955-1956 Chevrolet Corvette models, with specific considerations for ring gear replacement when upgrading or repairing. For optimal operation and longevity, Yukon recommends using high-grade non-synthetic GL-5 gear oil combined with Yukon LSD additive (Part number OILADD). Synthetic oils are not advised as they may cause aggressive or noisy operation. This limited slip differential features composite clutches for smooth engagement and is designed to fit 17-spline axles in 55P GM models. Backed by extensive testing and state-of-the-art software design, the Yukon Dura Grip offers unmatched strength, durability, and performance for classic and modern vehicles alike, making it the ultimate choice when demanding performance and reliability from your differential.

Features:

• Engineered for smooth yet aggressive traction across various terrains

• Constructed with high-strength nodular case and forged 4320 chromoly spider gears for durability

• Fully rebuildable design for extended service life and maintenance

• Includes composite clutches for smooth operation

• Compatible with 3.73 gear ratio and below, including thick gears

• Designed to fit 17-spline axles in 55P GM models, including Chevrolet Corvettes from 1955-1964

• Backed by extensive testing and advanced software design

• Proudly assembled in the USA

Fitment:
Chevrolet Bel Air Base 1955
Chevrolet Bel Air Base 1956
Chevrolet Bel Air Base 1957
Chevrolet Bel Air Base 1958
Chevrolet Bel Air Base 1959
Chevrolet Bel Air Base 1960
Chevrolet Bel Air Base 1961
Chevrolet Bel Air Base 1962
Chevrolet Bel Air Base 1963
Chevrolet Bel Air Base 1964
Chevrolet Bel Air Beauville 1955
Chevrolet Bel Air Beauville 1956
Chevrolet Bel Air Nomad 1955
Chevrolet Bel Air Nomad 1956
Chevrolet Bel Air Nomad 1957
Chevrolet Biscayne Base 1958
Chevrolet Biscayne Base 1959
Chevrolet Biscayne Base 1960
Chevrolet Biscayne Base 1961
Chevrolet Biscayne Base 1962
Chevrolet Biscayne Base 1963
Chevrolet Biscayne Base 1964
Chevrolet Biscayne Fleetmaster 1960
Chevrolet Chevy II Base 1962
Chevrolet Chevy II Base 1963
Chevrolet Chevy II Base 1964
Chevrolet Chevy II Nova 1962
Chevrolet Chevy II Nova 1963
Chevrolet Chevy II Nova 1964
Chevrolet Chevy II Nova SS 1964
Chevrolet Corvette Base 1955
Chevrolet Corvette Base 1956
Chevrolet Corvette Base 1957
Chevrolet Corvette Base 1958
Chevrolet Corvette Base 1959
Chevrolet Corvette Base 1960
Chevrolet Corvette Base 1961
Chevrolet Corvette Base 1962
Chevrolet Corvette Base 1963
Chevrolet Corvette Base 1964
Chevrolet Impala Base 1958
Chevrolet Impala Base 1959
Chevrolet Impala Base 1960
Chevrolet Impala Base 1961
Chevrolet Impala Base 1962
Chevrolet Impala Base 1963
Chevrolet Impala Base 1964
Chevrolet Impala SS 1964
Chevrolet Malibu Base 1964
Chevrolet Nomad Base 1955
Chevrolet Nomad Base 1956
Chevrolet Nomad Base 1957
Chevrolet Nomad Base 1958
Chevrolet Nomad Base 1959
Chevrolet Nomad Base 1960
Chevrolet Nomad Base 1961