MOOG Greaseable Universal Joint for Ram 2500 — Heavy-Duty U-Joint with Hardened Bearing Cups

MOOG 479 is a greaseable, heavy-duty universal joint engineered to restore reliable drivetrain rotation on compatible Ram and Dodge trucks.

This premium U-joint from MOOG is built with hardened bearing cups, precision-ground trunnions and serviceable grease fittings to extend life under demanding loads. Designed for fleet, commercial and off-highway use, the assembly includes nitrile seals and internal lubrication control so the driveline stays protected from dirt and starts smoothly after maintenance. Before purchase, confirm vehicle fitment for your specific year, model and trim to ensure correct installation.

Which Ram and Dodge trucks will this MOOG U-joint fit?

The MOOG 479 is manufactured to suit a range of heavy-duty Ram and Dodge pickups across select model years. Always verify exact year, make, model, engine and trim to avoid fitment issues—use the vehicle information tool where available and review any fitment notes.

• Compatible with Ram 2500 models from 2011–2017 and specific 2018 listings
• Fits Ram 3500 trucks from 2011–2018 and Dodge Ram 2500/3500 around 2010 model years
• Also listed for certain Ram 4500 and other heavy-duty variants depending on trim
• Check the product’s confirmed-fit indicator and hover over the info icon for special notes

How does the greaseable design improve service and longevity?

This U-joint features drilled and tapped grease ports plus large grease reservoirs to encourage regular lubrication and prevent dry starts. The radial grease channels spread lubricant across the cross trunnions so wear is reduced and maintenance intervals can be more effective.

• Drilled and tapped fittings accept standard grease guns for easy servicing
• Large internal reservoirs store lubricant for sustained protection
• Radial channels ensure even grease distribution to bearing surfaces
• Internal valve in the thrust washer controls lubrication flow on startup

What construction details make this U-joint durable under heavy use?

MOOG applies cold-forming, case-hardening and precision grinding to the bearing cups and cross trunnions to achieve high strength and consistent tolerances. Nitrile seals keep contaminants out while a fine surface finish on trunnions minimizes microscopic wear points that can accelerate failure.

• Bearing cups are cold-formed and case-hardened for fatigue resistance
• Trunnions precision-ground to a smooth 15–25 RMS finish to reduce wear
• Nitrile seals retain grease and protect against road debris and moisture
• Extensive engineering tests validate performance under heavy loads

Is installation straightforward and what should I check before fitting?

The part is designed for straightforward replacement of compatible U-joints, but correct fit requires verifying exact vehicle specifications and noting any special installation instructions. If a fitment info icon appears, review its notes; some vehicle/trim combinations may need additional attention or hardware.

• Confirm year, make, model, engine and trim before buying
• Inspect driveshaft and yoke alignment for wear before installing the new joint
• Use correct grease and service the new U-joint after installation
• Follow torque and press-fit procedures recommended for your vehicle

Who is this for: The MOOG 479 greaseable premium universal joint is aimed at owners and technicians of heavy-duty Ram and Dodge pickups who need a serviceable, long-lasting replacement for worn driveline U-joints. It’s especially well suited to fleet operators, commercial vehicle users and drivers who put heavy loads or off-highway duty on their trucks and want a robust, maintainable component to reduce downtime.