1999-2007 Chevy Silverado 1500 Pickup Front Axle Differential Carrier 3.73 Ratio

1999-2007 Chevy Silverado 1500 Pickup Front Axle Differential Carrier 3.73 Ratio

Used OEM front axle differential carrier with a 3.73 ratio (RPO GT4) for 1999–2007 Chevrolet Silverado 1500, GMC Sierra 1500 and related GM full-size SUVs.

Fitment: 1999-2007 Chevy Silverado 1500 Pickup Front Axle Differential Carrier 3.73 Ratio

• 1999–2007 Chevrolet Silverado 1500 (2001–2006 excl. Crew Cab except 2004–2006 Crew Cab 6-lug; 2007 Classic 6-lug; no 4WS or AWD)
• 1999–2007 GMC Sierra 1500 (same restrictions; 2007 Classic 6-lug)
• 2002–2004 Chevrolet Avalanche 1500
• 2000–2004 and 2006 Chevrolet Tahoe and Suburban 1500 (without AWD)
• 2000–2004 and 2006 GMC Yukon and Yukon XL 1500 (except Denali / AWD)
• All with 3.73 ratio, RPO GT4

Part numbers

• RPO code: GT4 (3.73 ratio)
• Stock #: GMDC1B

Condition & notes

• Front differential carrier
• Check your glovebox RPO sticker for GT4
• Used, excellent condition

Photos

Shipping, warranty & fitment help

Shipping is free to the USA and Canada, and this part is covered by our 30-day replacement warranty. Please confirm fitment by part number or VIN before ordering: you can check your vehicle details with the free NHTSA VIN decoder. Looking for something else? Browse more Transmission & Axles parts.