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  • DODGE CUMMINS
  • FORD POWERSTROKE
  • GM DURAMAX
  • COMMERCIAL / INDUSTRIAL
  • CUMMINS CONVERSION PARTS
  • CPP GEAR
  • USED PARTS
  • SHOP BY BRAND

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    • DIFFERENTIAL AND DRIVETRAIN

    DIFFERENTIAL AND DRIVETRAIN — 1998.5–2002 DODGE RAM 5.9L CUMMINS (24-VALVE, VP44)

    CPP Diesel curates proven ring & pinion sets, master install kits, lockers & limited-slips, differential covers, wheel hub/bearing assemblies, U-joints & yokes, and axle hardware for the 1998.5–2002 Ram 2500/3500 with Dana 60/70/80 axles.

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    Featured 98.5–02 Picks

    Why Buy from CPP Diesel

    • 2nd-Gen Focus: Parts vetted around Dana 60/70/80 specifics for 1998.5–2002 Rams.
    • Top Brands + CPP Hardware: Yukon, USA Standard, MAG-HYTEC, Spicer, ATS, Zumbrota—plus CPP axle hardware.
    • Expert Support: Ratio selection, locker type, bearing preload, and hub torque specs.
    • Fast Shipping: Popular gears, hubs, covers and U-joints ship quickly from U.S. warehouses.

    Complete your build with STEERING / SUSPENSION stability and BRAKES for control under load.

    Helpful Notes

    • Axle ID: Most 2500/3500 use Dana 80 rear and Dana 60 front. Verify tags/BOM before ordering gears/lockers.
    • Ratios: 3.54/3.73/4.10 were common; deeper gears (e.g., 5.13) suit big tires or competition—match to use case and transmission.
    • Install kits matter: Always pair gears with quality bearings, shims, and seals to ensure quiet patterns and long life.
    • Hub service: If ABS lights or play develop, full hub/bearing assemblies are the clean fix on CAD/unit-bearing fronts.
    • Break-in: New gears need conservative heat-cycle break-in and early fluid changes.

    Frequently Asked Questions

    How do I choose the right gear ratio for towing?

    Heavier trailers or larger tires benefit from numerically higher ratios (e.g., 4.10+). For mixed daily/tow use, many 24-valves are happy at 3.73–4.10. We can help match ratio to tire size and cruising RPM.

    Locker, limited-slip, or open?

    Lockers (air/electric) provide maximum traction when engaged; helical limited-slips improve grip with smooth manners. Choose based on terrain, snow/ice use, and budget. See examples like the Yukon Zip Locker.

    Which hub assembly fits my 2001–2002 2500/3500?

    Use complete units such as Dorman 951-834 (01–02 2500 4WD / 00–02 3500 4WD)—confirm ABS and axle options before ordering.

    Do diff covers help temps?

    Yes—high-capacity finned covers like MAG-HYTEC and ATS increase fluid volume and cooling area for towing/heat control.

    Is a complete reman axle worth it?

    If your housing, gears, and bearings are tired, a Zumbrota reman assembly can save setup time and include new wear parts—core return required.

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