Vehicle Fitment

• Fits Dana Spicer Dana 44 rear (or front IFS with spring kit) using 30‑spline axles and 10‑bolt cover; compatible with gear ratios of 3.92:1 and up across applications including Chevy, GMC, Ford, Dodge, Jeep, International Scout, Isuzu and other vehicles with Dana 44 housings.

Features

• Clutch‑style limited‑slip “Dura Grip” differential built by Yukon and assembled in USA 
• Fully rebuildable 4‑spring composite clutch pack for smooth but aggressive torque transfer 
• Nodular iron case with forged 4320 chromoly internal spider gears for exceptional strength and durability 
• Precision-machined gear teeth and optimized friction clutches for reduced noise and enhanced traction 
• Doubly drilled ring-gear bolt pattern (7/16″ & ½″) and compatibility with 3/8″ using YSPBLT-027 adapter 
• Designed for gear ratios from 3.92:1 up through 8.00:1 for Dana 44 applications 
• Installation with Yukon LSD additive and high-grade Non-Synthetic GL‑5 gear oil recommended; synthetic oil may cause aggressive or noisy operation 
• Backed by Yukon’s 1‑year limited warranty against defects; optional lifetime Y.E.S. protection available :

Specifications

• Part Number: YDGD44‑4‑30‑1
• Axle Type: Dana Spicer 44, semi-float, 30‑spline axle shafts
• Compatible Gear Ratios: 3.92:1 and up (up to ~8.00:1)
• Ring Gear Bolt Pattern: 10‑bolt with double drill for 7/16″ & ½″; adapter required for 3/8″ bolts
• Case Material: Nodular iron
• Spider Gears Material: Forged 4320 chromoly steel
• Deck Height: Standard Dana 44 spec
• Weight: ~21.5–23 lb

Included Components

• 1x Fully assembled Yukon Dura Grip carrier unit (with clutches & springs installed)

Product Description

The Yukon Gear & Axle YDGD44‑4‑30‑1 Dura Grip limited‑slip differential is engineered for Dana 44 axle housings equipped with 30‑spline axle shafts and 10‑bolt covers. Designed to work with gear ratios of 3.92:1 and upward, it delivers dependable, aggressive traction while maintaining smooth vehicle behavior thanks to its four‑spring composite clutch system built into a rugged nodular iron case.

Inside, the unit leverages forged 4320 chromoly spider gears and precision-machined clutch components for long-lasting reliability and reduced heat buildup. The double‑drilled design accepts both 7/16″ and ½″ ring‑gear bolts, with YSPBLT‑027 adapter support for 3/8″ bolt patterns. Yukon recommends using high‑grade GL‑5 non‑synthetic gear oil paired with their LSD additive to ensure optimal slip behavior—synthetic oil may induce noise or harsh engagement.

Backed by Yukon’s one‑year limited warranty (with optional lifetime Y.E.S. coverage), the YDGD44‑4‑30‑1 is ideal for restoring performance in classic trucks, Jeeps, or SUVs with Dana 44 axles—or upgrading existing gear systems needing improved traction without replacing the housing. Fully rebuildable and assembled in the USA, it delivers excellent durability for towing, off‑road use, or daily driving in a variety of gear ratio configurations.