4R100 2000 Ford F-250-F-550 Super Duty 6.8L RWD – Remanufactured 4-Speed Automatic Trans

Description

Engineered for severe cargo hauling, the Ford F450 Super Duty 2000 Remanufactured Transmission provides exceptional mechanical stamina across punishing commercial routes. This 4-Speed 2WD platform supports 365 continuous horsepower and 430 lb-ft torque at a 5000 RPM maximum engine speed. Calibrated hydraulic circuits maintain 205 PSI mainline fluid pressure to prevent internal friction plate slip under gross vehicle cargo loads.

Enclosed in an A380 structural aluminum housing, this unit utilizes shot-peened 8620 alloy steel planetary gearsets that resist tooth fracture under rapid torque shifts. Sintered bronze friction plates replace stock paper discs inside intermediate clutch packs to withstand high operational temperatures. The remanufactured valve body includes hard-anodized aluminum bore sleeves and an oversized steel regulator spool. Dry unit weight measures 250 lbs, holding 16 quarts of fluid through 1/2-inch ports alongside a single-disc lockup torque converter.

Key Features of Ford F450 Super Duty

Fleet operators choose to buy Ford F450 Super Duty 2000 remanufactured transmission inventory to maintain dependable work truck performance on job sites. This heavy driveline platform manages utility payload demands without gear hunting or hydraulic pressure drops.

• 4-Speed steel forward clutch hubs eliminate spline strip under maximum cargo bed capacity
• Remanufactured 2000 F450 Super Duty valve body channels uniform line pressure without hydraulic bore wear
• 3 planetary gearsets disperse tooth contact pressure to resist shock fracture under load
• Precision balanced 2000 F450 Super Duty torque converter package prevents harmonic vibration at highway cruise
• Upgraded Viton fluid seal rings maintain tight hydraulic clamping pressure under high heat
• Hardened steel coast clutch drums eliminate ring groove blowouts under engine braking
• Heavy-duty intermediate mechanical diodes prevent roller rollover during aggressive 1st to 2nd gear shifts

Thermal Dynamics Gear Step Ratios

Operating line pressures remain constant between 190 and 230 PSI across all forward speeds. Transmission sump temperatures hold steady from 165°F to 195°F when routed through external chassis fluid coolers. The internal geartrain delivers smooth step ratios consisting of 2.71:1 in 1st gear, 1.54:1 in 2nd gear, 1.00:1 in 3rd gear, and 0.71:1 in 4th gear overdrive. The complete rotating gear group sustains 430 lb-ft continuous input torque at 3200 RPM, channeling excess heat straight into external frame-mounted cooling coils without internal fluid breakdown.

Driveline Flange Extension Alignment

A precision-machined 31-spline output shaft interfaces straight with commercial slip yokes to drive heavy rear axles. Front bell housing pilot register measures 5.400 inches to secure true concentric engine block mating. Distance from bell housing face to crossmember mount measures 26.8 inches, while total output bushing dial runout remains under 0.0016 inches.

Dynamometer Calibration Maintenance Guidelines

Each completed unit undergoes full computer-controlled dynamometer runs under high payload resistance to verify shift solenoid actuation, mainline line pressure rise, and lockup clutch engagement. Automated fluid diagnostic sensors inspect cooler line flow rates and port pressures prior to crate shipping. This unit is not engineered for modified sled-pulling trucks, uncalibrated drag racing, or installations retaining contaminated transmission oil coolers.

• Inspect fluid level on level ground every 14 operating days
• Drain fluid and replace bottom pan filter every 25,000 miles
• Inspect transmission crossmember mount bolts every 12 months

Commercial Warranty Crate Package

Fleet buyers receive an extensive 3-Year unlimited mileage commercial warranty protecting transit investments against unexpected mechanical downtime on the job. The rugged wooden transport crate contains the complete remanufactured transmission, dyno-tested lockup torque converter, inline fluid filtration canister, vehicle installation guidelines, and fluid specification documentation tags.