Yukon Gear and Axle 8" Ford Trac-Loc with 31 Spline; Limited Slip; Aggressive - 2 Preload Springs - YDGF8-31-SM

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.

Fits all Gear Ratios Fits 8" Ford with 31 Spline Axles Fully rebuildable design and proudly assembled in the USA Limited Slip Differential with Composite Clutches 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 4 Pinion Design Smooth Design for Everyday Use Gears are cut to provide the strongest teeth possible in any terrain

Assembled: Yes
Axle Shaft Spline Quantity: 31
Axle Type: semi Floating
Bolt Hole Quantity: 10
California Proposition 65: WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Case Included: Yes
Differential Brand: FORD
Gear Ratio: All
Heat Treated: Yes
Material: Steel
This unit requires carrier bearing & race part numbers LM102949 & LM102910. 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. This unit requires the use of ring gear bolt part number YSPBLT-014.

8" 31spl T/L STREET POSI (Light Springs) needs T/L bolts + YK F8-AG