5R55S 2005-2006 Ford Mustang 4.0L RWD – Remanufactured 5-Speed Automatic Trans

Description

Engineered for fifth-generation pony cars, this Ford Mustang 4.0L 2005-2006 Remanufactured Transmission directs 4.0L Cologne V6 power straight to the rear wheels. The 5-Speed RWD platform supports 210 horsepower and 240 lb-ft of torque beneath a 5,500 RPM ceiling. Working hydraulic line pressure peaks at 220 PSI to prevent friction clutch pack slippage across brisk road acceleration.

A thick cast aluminum case encloses carburized 8620 steel helical gear sets and planetary gearsets designed to operate quiet under load. Segmented graphite friction plates pair with nitrided steel reaction separator plates to resist clutch glazing. The remanufactured valve body features hardened steel sleeves and an oversized mainline pressure regulator spool. Dry unit weight measures 170 lbs, supporting a 10.0-quart fluid capacity with 3/8-inch threaded inverted flare transmission cooler ports.

Key Features of Ford Mustang

Service facilities buy Ford Mustang 2005-2006 remanufactured transmission inventory to resolve harsh shifting and clutch slippage on modern muscle coupes. The precision remanufacturing process restores exact factory pressure control curves to match responsive V6 torque curves.

• 24-spline heat-treated input shaft handles abrupt torque loads from rapid pedal application.
• Mustang 2005-2006 replacement valve body ends delayed reverse engagement and pressure loss.
• 5 forward gear ratios arrange smooth acceleration steps through an overdrive top gear.
• Upgraded clutch separator plates reject high heat during sustained high-speed highway transit.
• 2005-2006 Mustang torque converter package delivers rapid clutch lockup at highway cruising speeds.
• Hard-anodized internal accumulator pistons stop fluid pressure bypass during shift events.
• Precision roller sprag units guarantee immediate mechanical engagement under high vehicle momentum.

Mustang V6 Hydraulic Limits

Working line pressure maintains a strict 175 to 220 PSI operational band governed by the transmission control module. Operating fluid temperature remains regulated at 170°F to 195°F across high ambient temperature runs. Gear ratios begin with a wide 2.47:1 1st gear ratio, stepping down through a 1.00:1 4th gear, and concluding with a 0.75:1 5th gear overdrive. Continuous hydraulic circulation through the remote radiator heat exchanger preserves oil viscosity.

Pony Car Slip Fitment

A precision-machined 27-spline rear output shaft links straight to the driveshaft slip yoke. Dial indicator runout testing checks output shaft center deflection under 0.0015 inches at the tail housing lip seal. The crossmember support pad sits 22.5 inches behind the bell housing mounting flange. Centering pilot register diameter ensures true axial driveline balance without balance runout vibrations.

Sports Coupe Dyno Standards

Automated test benches run each rebuilt unit through simulated highway driving profiles using heated transmission fluid to verify shift timings. This mechanical transmission is not engineered for nitrous oxide injection, drag racing slick tires, or chassis running crushed fluid lines.

• Check transmission oil fluid dipstick level every 30 operating days.
• Replace internal filter screen and synthetic ATF fluid every 30,000 miles.
• Inspect rubber transmission mount isolation blocks every 12 months.

Mustang V6 Warranty Terms

Fleet purchases include a 3-Year unlimited mileage warranty safeguarding against mechanical fault. Each palletized shipping box includes the remanufactured 5-Speed transmission unit, precision balanced torque converter, magnetic drain plug, and synthetic lubricant fluid specification sheet.