AW55-50SN 2007-2009 Chevrolet Equinox & Pontiac Torrent 3.4L FWD – Remanufactured 5-Speed Automatic Trans

Description

Die-cast A380 aluminum cases absorb severe front-wheel drive torque reaction forces while transferring 210 lb-ft torque across dense municipal transit corridors. The GM AW55-50SN Remanufactured Automatic Transmission fits 2007 to 2009 Chevrolet Equinox and Pontiac Torrent 3.4L front-drive platforms. Each remanufactured unit undergoes dynamic hydraulic testing to eliminate solenoid lag on high-frequency city routes.

High-tensile aluminum cases resist housing flex under heavy V6 torque loads. Rebuilt valve bodies feature vacuum-verified Sonnax sleeves that prevent hydraulic circuit cross-bleed under extreme fluid heat. High-energy carbon clutch frictions pair with micro-finished steel reaction plates to eliminate slip under load. Casing specs include dual quick-connect cooler ports, 8.5 quarts T-IV oil capacity, and 184 lbs dry weight.

Key Features of GM AW5550SN

Fleet operators buy GM AW55-50SN remanufactured transmission units to restore full powertrain reliability across front-wheel drive municipal vehicles. Upgraded linear solenoids and hardened valve sleeves provide durable operation through demanding summer seasons.

• Anodized valve bore sleeves prevent hydraulic circuit pressure loss inside direct clutch circuits
• High-energy carbon friction discs resist thermal glaze during prolonged city maneuvering
• Furnace-brazed torque converter turbine hubs eliminate balance flutter under heavy load acceleration
• Calibrated GM AW5550SN shift solenoid packs execute crisp gear transitions within 40 milliseconds
• High-output fluid pump units maintain continuous 260 PSI circuit pressure across high-load corridors
• Induction-hardened planetary ring gear teeth withstand heavy driveline shock loads
• Cast iron internal oil pump covers prevent thermal warping during extended transit events

Kinetic Hydraulic Transfer Limits

Calibrated main line hydraulic pressures regulate between 195 and 260 PSI during severe commercial grade ascent. Sump temperatures balance between 165°F and 185°F under demanding service work vehicle cycles. Maximum continuous input torque ratings reach 215 lb-ft at 3,800 RPM for heavy work assignments. Fluid circuits direct 405 BTU per minute heat dissipation through remote chassis coolers. Forward gear ratios feature 4.77:1 first, 3.00:1 second, 1.96:1 third, 1.32:1 fourth, and 1.02:1 fifth gear reduction.

Drive Axle Spline Interface

Dual 24-spline internal differential outputs accept original equipment front halfshafts without driveline vibration. Mechanical differential components withstand 1,150 lb-ft static torque during sudden traction recovery events. Axle seal face runout measures within 0.0013 inches on precision dial indicators to protect differential seals.

Field Service Usage Limitations

Installers must complete throttle position calibration alongside TCM adaptive shift learning cycles before clearing vehicles for road deployment. This transmission is not engineered for track drag racing, custom supercharged engines exceeding 280 horsepower, or unapproved towing weights.

• Inspect external oil lines and electrical wiring harness connections every 50 hours
• Extract contaminated fluid and wash internal collection magnets every 30,000 miles
• Perform complete hydraulic fluid changes with approved T-IV transmission oil every 12 months

Freight Crate Component Roster

A comprehensive 3-Year / 100,000-Mile commercial fleet warranty protects fleet owners against operational defects. Each wooden freight container holds a finished remanufactured transmission unit, dynamic-tested lockup torque converter, replacement cooler line clip seals, and validated dyno documentation sheets.