{"product_id":"yukon-gear-dura-grip-positraction-for-55p-gm-w-17-spline-axles","title":"Yukon Gear Dura Grip Positraction For 55P GM w\/ 17 Spline Axles","description":"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.\n55P GM 3.73 \u0026amp; down Yukon Dura Grip Limited Slip, 17 Spline; Positraction; Composite Clutches\nA 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.\n\u003cul\u003e\n  \u003cli\u003eAll units are backed by extensive product testing and state-of-the-art software design\u003c\/li\u003e\n  \u003cli\u003eYukon Dura Grips feature 4320 chromoly spider gears for ultimate durability\u003c\/li\u003e\n  \u003cli\u003eGears are cut to provide the strongest teeth possible in any terrain\u003c\/li\u003e\n  \u003cli\u003eFully rebuildable design and proudly assembled in the USA\u003c\/li\u003e\n  \u003cli\u003eFits 3.73 Gear Ratio \u0026amp; Down (Also Fits Thick Gears)\u003c\/li\u003e\n  \u003cli\u003eLimited Slip Differential with Composite Clutches\u003c\/li\u003e\n  \u003cli\u003eFits 3.73 Gear Ratio Down [Also Fits Thick Gears]\u003c\/li\u003e\n  \u003cli\u003eLimited Slip Differential w\/Composite Clutches\u003c\/li\u003e\n  \u003cli\u003eFits 55P GM with 17 Spline Axles\u003c\/li\u003e\n  \u003cli\u003eFits 55P GM w\/17 Spline Axles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eEngineered for smooth yet aggressive traction across various terrains\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eConstructed with high-strength nodular case and forged 4320 chromoly spider gears for durability\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFully rebuildable design for extended service life and maintenance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIncludes composite clutches for smooth operation\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompatible with 3.73 gear ratio and below, including thick gears\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned to fit 17-spline axles in 55P GM models, including Chevrolet Corvettes from 1955-1964\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eBacked by extensive testing and advanced software design\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eProudly assembled in the USA\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\nChevrolet Bel Air Base 1955\u003cbr\u003e\nChevrolet Bel Air Base 1956\u003cbr\u003e\nChevrolet Bel Air Base 1957\u003cbr\u003e\nChevrolet Bel Air Base 1958\u003cbr\u003e\nChevrolet Bel Air Base 1959\u003cbr\u003e\nChevrolet Bel Air Base 1960\u003cbr\u003e\nChevrolet Bel Air Base 1961\u003cbr\u003e\nChevrolet Bel Air Base 1962\u003cbr\u003e\nChevrolet Bel Air Base 1963\u003cbr\u003e\nChevrolet Bel Air Base 1964\u003cbr\u003e\nChevrolet Bel Air Beauville 1955\u003cbr\u003e\nChevrolet Bel Air Beauville 1956\u003cbr\u003e\nChevrolet Bel Air Nomad 1955\u003cbr\u003e\nChevrolet Bel Air Nomad 1956\u003cbr\u003e\nChevrolet Bel Air Nomad 1957\u003cbr\u003e\nChevrolet Biscayne Base 1958\u003cbr\u003e\nChevrolet Biscayne Base 1959\u003cbr\u003e\nChevrolet Biscayne Base 1960\u003cbr\u003e\nChevrolet Biscayne Base 1961\u003cbr\u003e\nChevrolet Biscayne Base 1962\u003cbr\u003e\nChevrolet Biscayne Base 1963\u003cbr\u003e\nChevrolet Biscayne Base 1964\u003cbr\u003e\nChevrolet Biscayne Fleetmaster 1960\u003cbr\u003e\nChevrolet Chevy II Base 1962\u003cbr\u003e\nChevrolet Chevy II Base 1963\u003cbr\u003e\nChevrolet Chevy II Base 1964\u003cbr\u003e\nChevrolet Chevy II Nova 1962\u003cbr\u003e\nChevrolet Chevy II Nova 1963\u003cbr\u003e\nChevrolet Chevy II Nova 1964\u003cbr\u003e\nChevrolet Chevy II Nova SS 1964\u003cbr\u003e\nChevrolet Corvette Base 1955\u003cbr\u003e\nChevrolet Corvette Base 1956\u003cbr\u003e\nChevrolet Corvette Base 1957\u003cbr\u003e\nChevrolet Corvette Base 1958\u003cbr\u003e\nChevrolet Corvette Base 1959\u003cbr\u003e\nChevrolet Corvette Base 1960\u003cbr\u003e\nChevrolet Corvette Base 1961\u003cbr\u003e\nChevrolet Corvette Base 1962\u003cbr\u003e\nChevrolet Corvette Base 1963\u003cbr\u003e\nChevrolet Corvette Base 1964\u003cbr\u003e\nChevrolet Impala Base 1958\u003cbr\u003e\nChevrolet Impala Base 1959\u003cbr\u003e\nChevrolet Impala Base 1960\u003cbr\u003e\nChevrolet Impala Base 1961\u003cbr\u003e\nChevrolet Impala Base 1962\u003cbr\u003e\nChevrolet Impala Base 1963\u003cbr\u003e\nChevrolet Impala Base 1964\u003cbr\u003e\nChevrolet Impala SS 1964\u003cbr\u003e\nChevrolet Malibu Base 1964\u003cbr\u003e\nChevrolet Nomad Base 1955\u003cbr\u003e\nChevrolet Nomad Base 1956\u003cbr\u003e\nChevrolet Nomad Base 1957\u003cbr\u003e\nChevrolet Nomad Base 1958\u003cbr\u003e\nChevrolet Nomad Base 1959\u003cbr\u003e\nChevrolet Nomad Base 1960\u003cbr\u003e\nChevrolet Nomad Base 1961","brand":"Yukon Gear \u0026 Axle","offers":[{"title":"Default Title","offer_id":53955131736380,"sku":"yukYDGGM55P-17-1","price":934.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1865\/9007\/files\/214abc23d5db65470ab025bb3e290b93.jpg?v=1785685663","url":"https:\/\/necycleshop.com\/products\/yukon-gear-dura-grip-positraction-for-55p-gm-w-17-spline-axles","provider":"NE Cycle Shop","version":"1.0","type":"link"}