SKU: ZG F10.5-373-31 | UPC: 883584362739
USA Standard Gear ZG F10.5-373-31 Ring & Pinion Gear Set 3.73 Ratio for Ford 10.5" 10-Bolt
USA Standard Gear ring and pinion sets deliver reliable power transfer for 1999-2010 Ford trucks and vans with 10.5-inch 10-bolt differentials. This 3.73 ratio setup balances acceleration torque and fuel efficiency ideal for towing daily driving and off-road use. Each set undergoes strict in-house testing for dimensions material properties and fitment to outperform stock gears.
Key Features
- Construction Material – 8620 steel alloy for maximum strength and wear resistance
- Heat Treatment – Computer-controlled process ensures hardened surface with tough core
- Quality Assurance – 100% inspected including gear pattern contact and runout
- Gear Ratio – 3.73 provides strong low-end pull and highway cruising
- Spline Configuration – 31-spline pinion matches Ford OEM specs
- Axle Compatibility – Direct fit for Ford Sterling and IFS 10.5-inch 10-bolt housings
Specifications
| Detail | Value |
|---|---|
| Brand | USA Standard Gear |
| Type | Ring and Pinion Gear Set |
| Compatibility | 1999-2010 Ford F-150 F-250 F-350 Super Duty Excursion E-250 E-350 10.5" 10-Bolt |
| Gear Ratio | 3.73 |
| Axle Spline | 31 Spline |
| MPN | ZG F10.5-373-31 |
| Shipping Weight | 20.8 lbs |
| Box Dimensions | 12 x 12 x 6 inches |
| Country of Origin | Korea |
| Warranty | 2 Year Manufacturer Warranty from Purchase Date |
Whats Included
- Ring Gear
- Pinion Gear
Product Notes
- Special order item ships within 2-5 business days
- Professional installation required includes proper backlash and preload setup
- Bearings shims and master install kit sold separately
This Part Fits
| Year Range | Make | Model | Notes |
|---|---|---|---|
| 2003-2010 | Ford | E-250 | Base |
| 1999-2002 | Ford | E-250 Econoline | Base |
| 1999-2000 | Ford | E-250 Econoline | XL |
| 1999 | Ford | E-350 Econoline Club Wagon | Chateau |
| 1999 | Ford | E-350 Econoline Club Wagon | Custom |
| 1999 | Ford | E-350 Econoline Club Wagon | XLT |
| 2000-2010 | Ford | E-350 Super Duty | Base |
| 2006 | Ford | E-350 Super Duty | Chateau |
| 2000,2006-2010 | Ford | E-350 Super Duty | XL |
| 2006-2010 | Ford | E-350 Super Duty | XLT |
| 2003-2005 | Ford | Excursion | Eddie Bauer |
| 2000-2005 | Ford | Excursion | Limited |
| 2004-2005 | Ford | Excursion | XLS |
| 2000-2005 | Ford | Excursion | XLT |
| 2000 | Ford | F-150 | Base |
| 2007-2008,2010 | Ford | F-150 | FX2 |
| 2004-2010 | Ford | F-150 | FX4 |
| 2000-2003,2006-2008,2010 | Ford | F-150 | Harley-Davidson Edition |
| 2001-2003,2005-2010 | Ford | F-150 | King Ranch |
| 2000-2010 | Ford | F-150 | Lariat |
| 2000-2003 | Ford | F-150 | Lightning |
| 2008 | Ford | F-150 | Limited |
| 2009-2010 | Ford | F-150 | Platinum |
| 2004-2010 | Ford | F-150 | STX |
| 2010 | Ford | F-150 | SVT Raptor |
| 2008 | Ford | F-150 | THE 60TH ANNIVERSARY EDITION |
| 2000-2010 | Ford | F-150 | XL |
| 2000-2010 | Ford | F-150 | XLT |
| 1999 | Ford | F-250 | Base |
| 1999 | Ford | F-250 | Lariat |
| 1999 | Ford | F-250 | XL |
| 1999 | Ford | F-250 | XLT |
| 2009-2010 | Ford | F-250 Super Duty | Cabela's |
| 2008-2009 | Ford | F-250 Super Duty | FX4 |
| 2004-2010 | Ford | F-250 Super Duty | Harley-Davidson Edition |
| 2004-2010 | Ford | F-250 Super Duty | King Ranch |
| 1999-2010 | Ford | F-250 Super Duty | Lariat |
| 1999-2010 | Ford | F-250 Super Duty | XL |
| 1999-2010 | Ford | F-250 Super Duty | XLT |
| 2009-2010 | Ford | F-350 Super Duty | Cabela's |
| 2008-2009 | Ford | F-350 Super Duty | FX4 |
| 2004-2010 | Ford | F-350 Super Duty | Harley-Davidson Edition |
| 2003-2010 | Ford | F-350 Super Duty | King Ranch |
| 1999-2010 | Ford | F-350 Super Duty | Lariat |
| 1999-2010 | Ford | F-350 Super Duty | XL |
| 1999-2010 | Ford | F-350 Super Duty | XLT |
Why Choose USA Standard Gear?
- Every set exceeds OEM specifications through precision manufacturing
- Rigorous testing confirms perfect dimensions material integrity and fit
- Direct replacement restores or improves drivetrain performance
- Backed by dedicated customer support and warranty coverage
Frequently Asked Questions
- Q: Does this set include bearings or shims?
- A: No this is ring and pinion gears only. Master install kits available separately.
- Q: What type of differential does it fit?
- A: Ford 10.5-inch 10-bolt Sterling and IFS housings 31-spline compatible with open limited-slip and lockers.
- Q: Is professional setup required?
- A: Yes correct pinion depth backlash and preload setup essential for quiet operation and longevity.
Shipping & Handling
- Method: UPS / FedEx Ground
- Availability: Special order ships within 2-5 business days
- Packaging: Secure manufacturer box with foam protection 20.8 lbs 12x12x6 inches
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