Brand: Motive Gear
F150 1983-1991 D44F/F8.8R 4.89
UPC: 00698231205235
App/Model: Dana 44 Reverse|Ford 8.8
Cover Bolt Quantity: 10
Differential Carrier Break: 3.92 Ratio and Higher
Differential Model: Dana 44 Reverse|Ford 8.8
Gear Ratio: 4.89|4.88
Pinion Gear Tooth Quantity: 8
Pinion Shaft Diameter: 1.376 Front (D44-488F)|1.626 Rear (F8.8-488) Inch
Pinion Spline Count: 26 Front (D44-488F)|30 Rear (F8.8-488)
Prop 65 Yes/No: No
Ring Gear Bolt Quantity: 10
Ring Gear Material: 8620 Steel
Ring Gear Outside Diameter: 8.5 Front (D44-488F)|8.8 Rear (F8.8-488) Inch
Ring Gear Rotation: Reverse Front (D44-489F)|Standard Rear (F8.8-488)
Ring Gear Tooth Quantity: 39
Taxonomy A: LD Differential
Taxonomy B: Ring and Pinion Gear Packages
Taxonomy C: Front and Rear
Taxonomy D: 4.89
For Dana 44 and Ford 8.8″ – Ring and Pinions Including Timken Bearing Kits; 4.88 Ratio; Requires 3.92 and Higher Front Carrier

Installation Instructions
Installation Instructions
Installation Instructions
Installation Instructions
Installation Instructions
Installation Instructions

Warranty Period: 1 Year or 50,000 Miles

Replaces:

• Revolution Gear & Axle: REV-F150-8.8-488

Applications:

• 1983-1991 Ford Bronco
• 1983-1991 Ford F-150
• 1983-1985 Ford F-250