Cadillac Escalade 2015-2017 Automatic Transmission 8-Speed 8L90E 6.2L AWD Remanufactured

Description

Strict OEM remanufacturing engineering standards restore heavy-duty eight-speed drivetrain integrity to your all-wheel-drive Cadillac. This remanufactured Escalade 8L90E AWD transmission 12671T matches 2015 to 2017 models with 6.2L L86 V8 engines. Technicians must perform a chemical cooler line flush and clear transmission shift adaptations before putting the vehicle into road service to protect internal hydraulic controls.

Shot-peened A380 die-cast aluminum forms the heavy-duty longitudinal casing, inspected for stress cracks along transfer case mounting flanges using fluorescent dye penetrant. Four high-capacity planetary gearsets transfer 420 horsepower and 460 lb-ft of torque without tooth spalling. Rebuilders install oversized pressure regulator valves, updated TCC control sleeves, Kolene steel plates, and Raybestos GPZ friction packs. Replaced pump bushings maintain stable line pressure. The dry unit weighs 215 lbs and ships inside a 38 by 26 by 24 inch crate.

Key Features of GM 8L90E

Technicians buy GM 8L90E transmissions to stop harsh shift clunks and converter shudder without paying steep local dealership pricing. This commercial remanufactured transmission assembly ensures positive torque multiplication and durable line pressure control for Cadillac Escalade transmission replacement projects.

• Re-machined pressure regulator valve bore stops line pressure decay and harsh 1-2 shifts.
• Upgraded TCC regulator valve sleeve eliminates torque converter clutch slip and friction shudder.
• Vacuum testing proves 22 inHg retention across all reamed valve bores.
• Balanced torque converter stops drivetrain shudder while protecting internal pump gears from wear.
• Raybestos GPZ high-energy frictions resist high heat glaze during heavy trailer towing.
• Hardened transfer case adapter splines prevent tooth strip failure under full throttle acceleration.
• Pre-tested internal control solenoid pack delivers factory 20 ms line pressure modulation in all gears.

SuperFlow Dynamometer Load Test Telemetry

Technicians test every remanufactured 8L90E transmission on a SuperFlow dynamometer through cold start and high temperature cycles. Telemetry confirms main line pressure reading 195 PSI in Drive and 255 PSI in Reverse at 1600 RPM. Electronic pressure control solenoids react within 20 ms with zero mechanical spool sticking. Calibrated vacuum gauges register 22 inHg across all hydraulic control passages. Automated testing logs zero lockup clutch slip under simulated heavy road loads. Fluid temperature sensors confirm normal thermal equilibrium without internal fluid bypass leaks.

Field Assembly Rules Application Limits

Seat the torque converter inward with three distinct clicks until the hub drops well past the bellhousing mating surface. Never force the transmission against the engine block using bellhousing bolts. Do not buy this factory-calibrated unit for turbo track racers, drift builds, or vehicles with altered final-drive differentials.

• Flush cooler lines with hot pressurized solvent to clear metallic clutch debris from previous failures.
• Fill with approved Mobil 1 Synthetic LV ATF HP fluid at 40°C pan temperature.
• Perform an electronic adaptation reset procedure using a professional scan tool before road testing.

Warranty Terms Shipping Contents Details

This remanufactured assembly includes a nationwide 3-Year/100,000-Mile warranty covering mechanical breakages and hydraulic valve body failures. The reinforced wooden crate contains a balanced torque converter, step-by-step installation instructions, dynamometer test pass printout, cooler flush verification card, and a pre-paid core return freight bill for easy transport.