Installation Time
(approx) 6 Hours
Difficulty Level:
Mechanical expertise or professional installation required.
Installation Guides
No guide available for this part yet.
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USA Standard Gear 8.8-Inch Posi Rear Axle Ring and Pinion Gear Kit with Install Kit; 3.31 Gear Ratio (86-04 V8 Mustang)Find parts that fit my vehicle
Item 435510
Our Price
$1,398.31 kit
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Product Information
Features, Description, Q&A, Specs & Installation
Features & Specs
- 8.8-Inch Ford Rear Ring and Pinion Gear Set with Install Kit
- Includes 3.31 Gear Ratio Ring and Pinion Gears
- Features 28-Spline Yukon Dura Grip Limited Slip Positraction Carrier
- Equipped with 2.25 Inch Outside Diameter Axle Bearings and Seals
- Designed for 10 Bolt Rear Cover and 10 Bolt Ring Gear Applications
- Inner Pinion Bearing has 3.250 Inch Outside Diameter
- Includes Master Install Kit with High Quality Koyo Bearings and Necessary Small Parts
- Quick Kit Provides One-Stop Shopping for Common Differential Repairs
- Ring Gear Diameter Measures 8.8 Inches
- Fits 1986–2004 V8 Mustang
| Brand | USA Standard Gear |
| Gear Type | Gear Kits |
| Gear Ratio | 3.31 |
Description
Rear Axle Gear Kit. The USA Standard Gear 8.8-Inch Posi Rear Axle Ring and Pinion Gear Kit with Install Kit; 3.31 Gear Ratio is engineered to restore and upgrade the rear differential's performance and durability. This kit includes all essential components needed to replace worn gears and bearings, optimizing power transfer and vehicle handling while maintaining proper gear mesh and limited-slip traction in the drivetrain.
Durable Construction. Manufactured using precision-machined steel components for strength and reliability, the gears feature an 8.8-inch ring diameter compatible with 10 bolt rear covers. The install kit contains high-quality Koyo bearings and seals designed for corrosion resistance and long-lasting wear under demanding driving conditions.
Installation. Installation requires moderate mechanical skill and common automotive tools with no drilling or modifications necessary. The kit is designed for straightforward integration into existing 8.8-inch rear axles, providing a direct replacement for worn components.
Application. Designed to fit V8 Mustangs from 1986 through 2004, this kit supports proper operation in this specific vehicle and engine configuration.
USA Standard Gear ZGK2221
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Rear Axle Ring and Pinion Gear Kit
4.7
Reviews of USA Standard Gear Drivetrain Products (43)
Questions & Answers
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