Brand: Motive Gear
RP GM 8.6″ 3.91 CAMARO ’10-’15
UPC: 00698231936849
App/Model: GM 8.6 IRS
Cover Bolt Quantity: 10
Differential Model: GM 8.6 IRS
Gear Ratio: 3.91
Pinion Gear Tooth Quantity: 11
Pinion Shaft Diameter: 1.87 Inch
Pinion Spline Count: 32
Prop 65 Yes/No: No
Ring Gear Bolt Quantity: 10
Ring Gear Material: 8620 Steel
Ring Gear Outside Diameter: 8.6 Inch
Ring Gear Rotation: Standard
Ring Gear Tooth Quantity: 43
Taxonomy A: LD Differential
Taxonomy B: Ring and Pinion
Taxonomy C: Rear
Taxonomy D: 3.91
For GM 8.6″ IRS; Performance Ring and Pinion; 3.91 Ratio; Excludes ZL1

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

Warranty Period: 2 Years or 100,000 Miles

Replaces:

• G2 Axle and Gear: 1-2060-391
• Yukon Gear and Axle: 24574
• American Axle & Manufacturing: 40098654
• Nitro Gear & Axle: GM8.6IRS-391-OE
• Yukon Gear and Axle: YG GM8.6-390IRS

Applications:

• 2010-2015 Chevrolet Camaro