DIFFERENTIAL & DRIVETRAIN — 1994–1998 DODGE RAM 5.9L CUMMINS (12-VALVE, P7100)

Build a stronger Second-Gen driveline with CPP Diesel’s curated selection of ring & pinion gears, lockers/LSDs, master overhaul kits, differential covers, axle shafts & hubs, U-joints, and pinion yokes—chosen for 1994–1998 Ram 2500/3500 fitment and heavy-duty use.

Shop by Subcategory

• Ring & Pinion (Dana 60/70/80) — Dana 60 gear sets, Dana 70, Dana 80.
• Lockers & Limited Slip — Yukon Zip (air) Locker, Yukon Grizzly (mechanical), Trac-Lok clutch sets, Power-Lok clutch sets.
• Master Install & Bearing Kits — Dana 60 master kit, Dana 70 master kit, Dana 60 bearing kit.
• Differential Covers — ATS Dana 80 cover, Yukon polished Dana 80, Yukon steel Dana 60.
• Axle Shafts & Hubs — Dana 70 rear shafts, Dana 60/70 stub shafts, locking hubs (spin-free kits).
• U-Joints & Yokes — Spicer 1480 U-joint, Yukon 1410 U-joint, Dana 80 1480 yoke.

Featured 94–98 Picks

• Yukon Dana 60 Ring & Pinion — durable gearing for towing or larger tires.
• USA Standard Dana 70 Master Kit — bearings, shims, seals & hardware.
• Yukon Grizzly Locker (D60) — mechanical traction for work & trail.
• ATS Dana 80 Cover — added fluid capacity & cooling fins.
• Spicer 1480 U-Joint — heavy-duty driveline service part.

Why Buy from CPP Diesel

• Second-Gen Focus: Parts selected around typical 94–98 axle combos (Dana 60 front; Dana 70 or Dana 80 rear—verify axle tag/RPO).
• Top Brands: Yukon, USA Standard, Dana Spicer, ATS and more.
• Expert Support: Gear ratio selection for tire size/towing, locker types, and correct install kits.
• Fast Shipping: Popular driveline components ship quickly from U.S. warehouses.

Browse the full 1994–1998 Cummins catalog, or pair driveline upgrades with steering/suspension and transmission/transfer case for a complete setup.

Helpful Notes

• Axle ID: Confirm front Dana 60 & rear Dana 70/80 via axle tag and spline count before ordering gears/lockers.
• Gear changes: A master overhaul kit is recommended whenever changing ratio or replacing worn bearings/seals.
• Locker choice: Air lockers offer on-demand lock; mechanical lockers (e.g., Grizzly) are simple and strong; clutch-type LSDs restore factory traction.
• U-joint sizing: Many Ram 2500/3500 builds use 1410 or 1480 series—match yolk/u-bolt style and cap diameters.
• Fluid & break-in: Use quality gear oil and follow heat-cycle break-in after new gears to reduce noise and extend life.

Frequently Asked Questions

How do I know if my truck has a Dana 70 or Dana 80 rear?

Check the axle tag on the diff cover or the BOM/RPO info. The Dana 80 is common on many 3500s; 2500s often have Dana 70. Count splines and verify cover shape before ordering gears or lockers.

Do I need a master install kit when changing gear ratio?

Yes—new bearings, shims, seals, ring gear bolts and setup consumables ensure proper pinion depth/backlash and long gear life. See our Dana 60 and Dana 70 master kits.

Which locker is best for a tow rig that also sees snow?

Air lockers offer street manners (open when off) and full lock when needed. A mechanical locker like the Grizzly is extremely durable but may feel more aggressive in tight turns.

Will a finned differential cover help temps?

Finned, higher-capacity covers can improve heat dissipation and fluid volume—popular on Dana 80 rears used for towing. See our ATS Dana 80 cover and Yukon aluminum covers.

How do I pick the right U-joint?

Match the series (1410/1480), cap diameter and snap-ring style to your yokes. We stock Spicer 1480 and Yukon 1410 options.