NP273 Transfer Case for 2006-2011 RAM series

Description

Executing push-button heavy truck reduction, New Process NP273 Heavy-RAM Gearbox units provide dependable torque transfer with a 2.72:1 ratio for 2006 to 2011 Dodge RAM 2500 and 3500 heavy trucks. Rated for 460 continuous horsepower at a 4,500 RPM input ceiling, this electric shift carrier stabilizes front wheel drive loads while moving heavy boat trailers across slick concrete aprons.

High-tensile die-cast magnesium forms the heavy-duty transfer case housing, dampening driveline resonance while minimizing overall vehicle mass. Carburized 8620 alloy steel helical planetary gears provide high-ratio torque multiplication, while an electronic rotary shift motor positions the shift sector. An internal fluid pump circulates oil from the 2.0-quart automatic transmission fluid reservoir across needle bearings, preserving shaft seals and maintaining thermal equilibrium under heavy continuous towing cycles.

Key Features of New Process NP273 Heavy-RAM

Fleet maintenance directors buy New Process NP273 Heavy-RAM marine gearbox units to maintain dependable four-wheel drive pulling power in modern shipyard transport trucks. This front differential carrier balances torque output across independent front suspension half-shafts during heavy marine vessel maneuvers.

• 2.72:1 low range gear reduction delivers massive pulling torque on steep slipway ramps
• Electric rotary shift motor executes mode changes via console-mounted push buttons
• Heavy input shaft matches Chrysler heavy automatic and manual transmissions
• New Process NP273 Heavy-RAM components maintain planetary gear alignment under load
• Direct 1.00:1 high range allows efficient transit across wide marine terminal facilities
• Internal gerotor oil pump maintains continuous lubrication across mainshaft roller bearings
• Fixed rear output companion flange supports heavy commercial driveshafts without leakage
• Front companion flange connects straight to standard 1410 series universal joint yokes

Heavy Duty Electric Parameters

Operating under medium duty commercial ratings, this transfer case manages 2,750 lb-ft of continuous input torque at 1,800 driveline RPM. The 2.72:1 low range ratio produces tremendous wheel torque while holding transfer case sump operating temperatures between 155°F and 185°F under full load. Heat dissipation across the ribbed magnesium casing reaches 2.9 kW during protracted four-wheel drive ramp work. Planetary helical gear profiles ensure uniform load distribution across tooth flanks, preventing tooth shearing under full engine acceleration.

Front Output Companion Alignment

The companion pinion flange accommodates heavy-duty 1410 series universal joints with a four-bolt pattern. Dual opposing tapered roller bearings resist 4,500 pounds of continuous axial output thrust. Dial indicator alignment inspection on the front output flange face must demonstrate less than 0.0025 inches radial runout relative to the mainshaft centerline.

Operational Housing Maintenance Regimen

Check automatic transmission fluid condition through the casing threaded fill port before operating support vehicles on steep boat ramps. As an explicit negative filter, this transfer case unit is not engineered for direct propeller shaft connection or inboard commercial vessel propulsion systems.

• Inspect transfer case housing fluid levels and breather valve freedom each shift before ramp transit
• Examine electric shift motor wiring and transfer case position sensors every 250 hours of operation
• Replace SAE ATF+4 transmission fluid and clean magnetic drain plug every 12 months of service

Factory Warranty Crate Inventory

This front carrier includes a 1-Year commercial limited warranty against material and craftsmanship defects. Crated shipment contents feature the assembled differential carrier case, electric shift motor, fixed front companion yoke, fixed rear companion yoke, and comprehensive installation documentation.