This USA Standard Gear driveshaft is built new from high-grade aluminum and many components have been upgraded from OEM to eliminate known issues. They're computer balanced and maintenance free, resulting in a superior driveshaft.

• Fits 1999-2005 extended/crew cab Chevy Silverado/GMC Sierra 4WD
• Measures 68.25 from centerline of slip yoke u-joint located to centerline of opposite u-joint
• 32 spline slip yoke
• Mechanics 3R rear u-joint w/1.125 cap diameter
• Brand new and fully assembled for simple out-of-the-box replacement
• Slip yokes & u-joints are lubricated with high temperature grease
• USA Standard driveshafts are strengthened over common Oe shafts to prevent Oe failure
• USA Standard Perfect Fit driveshafts are guaranteed for proper fitment and easy installation
• All units are dynamically balanced at 3,000+ rpm for vibration-free driving

Features and Benefits:

• Fits 1999-2005 extended/crew cab Chevy Silverado/GMC Sierra 4WD
• Measures 68.25 from centerline of slip yoke u-joint located to centerline of opposite u-joint
• 32 spline slip yoke
• Mechanics 3R rear u-joint w/1.125 cap diameter
• Brand new and fully assembled for simple out-of-the-box replacement
• Slip yokes & u-joints are lubricated with high temperature grease
• USA Standard driveshafts are strengthened over common Oe shafts to prevent Oe failure
• USA Standard Perfect Fit driveshafts are guaranteed for proper fitment and easy installation
• All units are dynamically balanced at 3,000+ rpm for vibration-free driving

• AAP UDA 4:70
• End 1 Type:Mechanics 3R (S44) U-Joint
• End 2 Type:Female Slip
• Inboard Spline Quantity:32
• Overall Length:75.6 inch
• Shaft Diameter:4.75 inch
• Shaft Material:Aluminum
• Slip Yoke:Yes
• Universal Joints Included:Yes

1999-2005 Chevrolet Silverado 1500 (Rear) (Bed Length: 78.0, 68.4 & Body: Extended Cab Pickup, Crew Cab Pickup & Wheel Base: 143.5 & Drive: 4WD / Qualifier: with 75.6 (in) Overall Length / Note: Aluminum Rear Driveshaft

• 68-1/4 inch. measured from centerline of U-Joint located at the slip yoke end to the centerline of the U-Joint on the opposite end
• 32 Spline Slip Yoke
• Mechanics 3R Rear U/Joint (1.125 inch. Cap Diameter)
• Replaces Oe 15751438, 15165400, 15746002)
• 1999-2005 GMC Sierra 1500 (Rear) (Bed Length: 78.0, 68.4 & Body: Extended Cab Pickup, Crew Cab Pickup & Wheel Base: 143.5 & Drive: 4WD / Qualifier: with 75.6 (in) Overall Length / Note: Aluminum Rear Driveshaft
• 68-1/4 inch. measured from centerline of U-Joint located at the slip yoke end to the centerline of the U-Joint on the opposite end
• 32 Spline Slip Yoke
• Mechanics 3R Rear U/Joint (1.125 inch. Cap Diameter)
• Replaces Oe 15751438, 15165400, 15746002)