Spicer AAM 1485 Series Driveshaft U-Joint Kit for Chevy, GMC & Ram 2500/3500 (Outside Snap Rings)

Eliminate harsh driveline vibrations, stop loud clunking when shifting into gear, and restore maximum torque capacity to your heavy-duty truck with this genuine Spicer AAM 1485 Series Driveshaft U-Joint Kit. Specifically engineered to survive the immense rotational stresses of high-torque diesel and gas heavy-duty platforms, this premium component is the definitive original equipment solution for servicing high-load rear or front driveshafts.

On modern 3/4-ton and 1-ton trucks, the universal joints endure brutal twisting forces from high-output engines and heavy towing demands. Over high mileage, intensive commercial fleet use, or harsh off-road trail conditions, factory universal joints wear down. A failing U-joint typically presents itself through a persistent driveline vibration that increases with vehicle speed, a loud metallic "clunk" when shifting from park to reverse or drive, or visible rust weeping past the bearing cap seals. Ignored U-joints can fail catastrophically, dropping the driveshaft and causing severe undercarriage damage.

This original equipment manufacturer (OEM) Spicer Life Series (SPL) upgrade is built with a rugged, cold-formed solid-steel body to deliver maximum structural density and strength. It features an Outside Snap Ring (OSR) retaining design and a non-greasable solid cross configuration that optimizes cross-sectional density, making it virtually impervious to high-torque shearing forces.

Kit Contents:

• (1) Premium AAM 1485 Series Solid-Body U-Joint Cross Assembly

• (4) Precision-Ground Journal Tapered Needle Bearing Caps

• (4) High-Strength Outside Snap Rings (OSR)

• (4) Advanced Multi-Lip Synthetic Rubber Seals

Kit Highlights:

• Genuine Spicer Life Series (SPL) Quality: Manufactured by the industry-leading original equipment supplier to provide up to 10 times the service life of traditional greaseable aftermarket joints.

• Solid-Body Design: Forged without internal grease channels for maximum structural integrity, ensuring long-lasting performance under heavy towing and commercial fleet conditions.

• Multi-Lip Seal Protection: Advanced synthetic seals form an airtight environmental barrier, permanently locking premium synthetic lubricant in while keeping highway moisture, road salt, and abrasive mud out.

• Eliminates Driveline Vibration: Restores smooth, balanced rotational clearance, safeguarding your transmission, transfer case, and differential yokes from irregular wear patterns.

Vehicle & Drivetrain Fitment:

• Drivetrain Profile: Fits AAM 1485 Series driveline configurations requiring outside snap rings.

• Ram / Dodge Models: 2003+ Ram 2500 and 3500 heavy-duty trucks (Front or Rear Driveshaft locations depending on wheelbase/cab configuration).

• Chevy / GMC Models: 2001+ Silverado and Sierra 2500HD and 3500HD trucks equipped with Duramax diesel or Vortec/8.6L gas engines.

• Dimensional Specifications: 4.178 Inches Total Width across caps | 1.188 Inch Bearing Cap Diameter.