Yukon Dura Grip Limited Slip Positraction Unit for GM 8.5"/8.6" Differential with 30 Spline Axle, 2.73-And-Up Ratio, YDGGM8.5-3-30-1
Brand: Yukon Gear
Categories: Automotive, Replacement Parts, Transmission & Drive Train, Differential Assembly Kits


Clutch Style Positraction | Limited Slip Differential - GM 8.5"/8.6" diff with 30 spline axles
Forged 4320 Steel Internals for Long Life and Durability
Fully Rebuildable | 1 year manufacturer warranty
Assembled in the USA in our Everett, Washington facility
RATIO: 2.73 Ratio and Up Only

Exterior: ‎Machined
Model: ‎DuraGrip Limited Slip Differential Positraction GM 8.5" w/30 Spline
Manufacturer: ‎Yukon Gear
Item Weight: ‎0.01 ounces
Country of Origin: ‎China
Item model number: ‎YDGGM8.5-3-30-1
OEM Part Number: ‎YDGGM9.5331
Customer Reviews: 4.7 out of 5 stars 1,215 ratings 4.7 out of 5 stars
Is Discontinued By Manufacturer: ‎No
Date First Available: May 27, 2010
Special Features: ‎The GM 8.5" & 8.6" came in the following vehicles | GTO '70-'74 | Hummer H3 '06-'10 | Impala '71-'85 '94-'96 | Isuzu Ascender '03-'08 | Malibu '73-'83 | Nova '70-'79 | Oldsmobile Cutlass '70-'77 '85-'87 | Omega '73-'79Pontiac Bonneville '70-'86 | Rainier '04-'07 | Regal '73-'87 | Replacement Part Number: '559-010 | Riviera '75-'78 | S-10 Blazer '94 | S-10 Pickup '99-'04 | Saab 9-7X '05-'09 | Savana '96-'13 | Sierra 1500 '99-'17 | Sierra 2500 '11-'13 | Sierra 3500 '11-'13 | Silverado 1500 '99-'17, The Yukon DuraGrip Positraction (also known as a "posi") is a Limited slip differential (LSD), is a traction device that splits torque to both axles, enabling continuous traction around corners as well as a strait line. This Posi fits a GM 10 Bolt 8.5" & 8.6" Inches with 30 Spline Axles. Aftermarket Carrier Style: Clutch-type. Fits 2.73 Gear Ratio & Up., DIFFERENTIAL OIL: Use non-synthetic GL-5 gear oil and Yukon LSD (Limited Slip Differential) additive (ASIN B00J0G09JW, model OILADD) are recommended for durable performance and smooth operation. Synthetic oil is not recommended and can result in aggressive or noisy operation. This unit requires the use of carrier bearing & race part numbers LM102949 & LM102911 for the 8.5 in. housing (2.891 in. Race OD) or LM603049 & LM603012 for the GM 8.600 in. housing (3.062 in. Race OD)., The GM 8.5" and 8.6" came in the following vehicles | Bel Air '70-'75 | Blazer '77-'94 | Buick Apollo '73-'75 | Cadillac Escalade '99-'00 '02-'13 | Camaro '70-'81 | Canyon '04-'12 | Caprice '70-'96 | Catalina '70-'81 | Chevelle '73 | Chevy Avalanche '02-'06 '09-'13 | Chevy Monte Carlo '73-'78 | CK Pickup '77-'86 '88-'00 | Colorado '04-'13 | El Camino '71-'76 | Electra '71-'89 | Envoy '02-'09 | Express '96-'14 | Firebird '70-'81 | GMC CK Pickup '77-'86 '88-'00 | Grand Prix '71-'87, The GM 8.5" and 8.6" came in the following vehicles | G-Series '75-'95 | G-Series '78-'95 | Skylark '70-'72 '75-'79 | Sonoma '94-'04 | SSR '03-'06 | Suburban '77-'86 '92-'99 | Suburban '77-'99 | Tahoe '95-'17 | Trailblazer '02-'09 | Typhoon '92-'93 | Ventura '76-'77 | Yukon '00-'13 | Yukon Denali '01-'13
ASIN: B003O755NS
Manufacturer Part Number: ‎YDGGM8.5-3-30-1
Brand: ‎Yukon Gear