Crisp eight-speed ratio staging and firm lockup return to your turbocharged Cadillac sport coupe. This remanufactured Cadillac ATS 8L45 RWD transmission provides exact hydraulic calibration for 2019 2.0L LTG rear-wheel-drive models. You must complete a high-temperature cooler line flush and execute a transmission adaptation reset before performing initial road tests to protect internal hydraulic circuits.

Shot-peened A380 die-cast aluminum forms the longitudinal transmission housing, verified crack-free through magnetic particle inspections. Steel planet pinions mesh with reaction sun gears to manage 2.0L turbo torque without excessive lash. We install oversized pressure regulator valves, Sonnax TCC regulator sleeves, Kolene steel plates, and high-energy Raybestos GPZ frictions. Renewed stator bushings restore internal fluid balance. The dry transmission weighs 178 lbs and ships inside a 36 by 24 by 22 inch crate.

Key Features of GM 8L45

Independent repair shops buy GM 8L45 transmission units to restore positive forward engagement without paying high dealership parts pricing. This commercial remanufactured transmission assembly provides durable gear selection for Cadillac ATS turbo transmission replacement projects.

- Oversized pressure regulator valve sleeve stops hydraulic pressure loss inside the valve body casting.
- Upgraded TCC regulator valve sleeve eliminates torque converter clutch slip and friction shudder.
- Hydro-tested valve body circuits hold 22 inHg vacuum during decay leak checks.
- Balanced remanufactured torque converter eliminates driveline vibration and prevents front pump bushing wear.
- Raybestos GPZ friction clutch plates ensure solid torque transfer under continuous boost conditions.
- Hardened output shaft splines handle turbocharged torque without tooth twist or surface pitting.
- Precision stator support bushings maintain consistent hydraulic fluid feed to the converter clutch.

SuperFlow Dynamometer Diagnostic Telemetry Data

Technicians test each remanufactured 8L45 gearbox on an automated SuperFlow dynamometer through cold start and elevated operating temperatures. Gauges register main line pressure at 185 PSI in Drive and 250 PSI in Reverse at 1600 RPM. Pulse-width shift solenoids show actuation times under 20 ms without mechanical bind. Re-machined valve body passages hold 21 inHg vacuum under static bench tests. Dynamometer instrumentation logs zero torque converter clutch slip under loaded grade profiles. Fluid temperatures hold steady at 175°F.

Field Installation Directives Application Limits

Push the torque converter inward while rotating the hub until you verify three distinct clicks. Make sure engine alignment dowels enter the bellhousing straight without draw bolt force. Do not buy this factory replacement unit for turbocharged track racers, drift cars, or nitrous builds.

- Flush chassis transmission oil cooler passages with heated solvent to remove trapped friction particles.
- Fill with approved Mobil 1 Synthetic LV ATF HP fluid at 40°C pan temperature.
- Reset transmission adaptation registers using an advanced scan tool before highway test driving.

Standard Warranty Delivery Crate Manifest

This remanufactured transmission includes a nationwide 3-Year/100,000-Mile warranty covering mechanical breakdown and hydraulic control failure. The reinforced wooden crate contains a balanced torque converter, technician installation checklist, dynamometer test pass report, cooler flush tracking card, and a pre-paid core return freight bill for prompt return transit.