2006 Dodge RAM 1500, 2500, and 3500 Factory Service Manual (P/N 81-370-06059)

• 9,267-page factory PDF for the 2006 Dodge Ram 1500, 2500, and 3500 line, with 4x2 and 4x4 coverage plus conventional cab, Quad Cab, Mega Cab, 3500 Cab Chassis, SRT-10, Power Wagon, and Mexico Work Truck references where applicable.

• Engine sections cover the 3.7L V6, 4.7L V8 gasoline and flex-fuel, 5.7L V8, 5.9L Cummins turbo diesel, and 8.3L SRT-10 V10, including mechanical diagnosis, engine removal and installation, cylinder-head and valvetrain work, internal inspection, lubrication service, and timing-system repair.

• Transmission chapters provide diagnosis, removal, internal disassembly, inspection, reassembly, adjustment, and verification procedures for the G56, Getrag 238, T56, 42RLE, 45RFE/545RFE, and 48RE, along with NV241 Gen II, NV243, NV244 Gen II, NV271, and NV273 transfer-case service.

• Differential and chassis material covers C205FD and 9 1/4 AA front axles plus 9 1/4 AA, 10 1/2 AA, 11 1/2 AA, and 248RBI rear axles, with pinion-depth setup, bearing preload, backlash, tooth-contact checks, wheel alignment, suspension repair, power-steering pressure testing, brake bleeding, and ABS diagnosis.

• The 8W electrical group includes factory diagrams for Integrated Power Module circuits, ground distribution, bus communications, fuel/ignition, transmission control, and all-wheel ABS, backed by connector pin-outs, splice and ground locations, harness-routing views, and wire and terminal repair procedures.

• Body and support sections document hydroformed frame-rail and rear frame H-section repair, frame and body opening dimensions, weld and structural-adhesive locations, HVAC testing and refrigerant service, restraint systems, and EVAP and EGR diagnosis.

This is shop-level factory material, not an owner's manual. It is best suited to professional technicians and experienced mechanics who already have the lifting equipment, scan tools, electrical test gear, A/C service equipment, and drivetrain setup tools required for the work. Certain airbag-unit procedures are specifically restricted by the manual to DaimlerChrysler-trained and authorized dealer technicians.

Model and Configuration Identification

The identification material decodes VIN positions, body code plates, transmission sales codes, cab and box styles, drive type, price class, and engine codes. Platform references include DR 1500, DH 2500, D1 3500, DC 3500 Cab Chassis, and DX Mexico Work Truck. Separate maintenance information is provided for the 24-valve Cummins and SRT-10, while cooling, fuel delivery, A/C plumbing, brakes, suspension, and driveline procedures distinguish the applicable engine or light-duty, heavy-duty, dual-rear-wheel, and SRT-10 configuration.

One transmission limitation is worth noting before purchase: NV4500 and NV5600 codes appear in the vehicle-identification and reference material, but Section 21 does not provide dedicated teardown and overhaul chapters for those units. Its full manual-transmission repair coverage is for the G56, Getrag 238, and T56.

Factory Repair and Diagnostic Depth

The engine group separates gasoline, diesel, and SRT-10 electrical diagnostics from the mechanical service chapters. Diagnostic content includes pre-diagnostic checks, intermittent-condition testing, circuit fault isolation, scan-tool data, DTC-specific test charts, and post-repair verification. Mechanical procedures extend into compression and combustion-leak testing, cylinder bore and crankshaft inspection, piston and bearing fitting, oil-pump service, valve and seat work, and timing-chain verification.

Axle chapters go beyond seal and bearing replacement. They cover pinion-depth tooling, differential-bearing preload, ring-gear backlash, and tooth-contact pattern checks for the axle families used across the truck line. Power Wagon material adds Final Drive Control Module, locker-solenoid, axle-position-sensor, and disconnecting-stabilizer-bar diagnostics. Brake content distinguishes base, rear-wheel ABS, and all-wheel ABS systems and includes manual and pressure bleeding, hydro-boost checks, caliper service, parking-brake adjustment, and variant-specific SRT-10 procedures.

Schematics, Specifications, and Shop Cautions

Factory reference data includes component-specific torque tables, fluid types and capacities, alignment data, pressure-test specifications, electrical values, clearances, wear limits, and calibration or adjustment information. Special-tool illustrations identify equipment such as Pinion Depth Sets 6730 and 6775, Probing Tool Package 6807, Terminal Pick Tool Set 6680, Pressure Tester Kit 7700, and Miller Special Tool 8815. Exploded assembly drawings and section views support the written procedures throughout the suspension, axle, transmission, engine, HVAC, frame, and body groups.

The manual also documents repair traps that generic guides often miss. It warns that backing off a pinion nut to reduce rotating torque, or mishandling a collapsible spacer, can damage the axle. During PCM circuit diagnosis, direct probing of harness connectors can damage the terminals and create a poor pin connection; the specified Miller special tool is called out instead.

Fuel pressure, hot cooling systems, heavy drivetrain components, spring-loaded parts, refrigerant, ABS, and supplemental restraints all require the safety controls and equipment stated in the manual. This publication describes factory procedures and specifications, but it does not replace the training or authorization required for hazardous or restricted repairs.