Cadillac Catera 1997-1998 Automatic Transmission 4-Speed 4L30E Remanufactured

Virgin shot-peened A380 aluminum forms the foundation of this reinforced rear-wheel-drive luxury transmission. This remanufactured Cadillac Catera 4L30E transmission 10138T delivers restored line pressure for 1997 to 1998 models with 3.0L L81 V6 engines. You must replace the adapter case gasket and perform a cooler flush before road testing to protect internal clutches.

Clean shot-peened A380 die-cast aluminum encloses the dual-case gear train, inspected for hairline stress cracks using fluorescent dye testing. High-strength planetary gears transfer 3.0L V6 power without tooth spalling or carrier distortion. Rebuilt internals include upgraded pressure regulator valves, heavy-duty intermediate bands, Kolene reaction steels, and BorgWarner high-energy friction packs. Renewed front pump stator bushings prevent circuit cross-leaks. The dry gearbox weighs 145 lbs and ships inside a 34 by 22 by 20 inch crate.

Key Features of GM 4L30E

Professional mechanics buy GM 4L30E transmissions to eliminate harsh gear hunting without facing steep dealer part pricing. This commercial remanufactured transmission assembly supplies reliable torque capacity and restored shift quality for Cadillac Catera transmission replacement projects.

- Updated steel pressure regulator valve stops line pressure decay inside the main pump body.
- Hydro-tested aluminum valve body passages hold 22 inHg during vacuum decay leak checks.
- Vacuum testing guarantees minimum 21 inHg seal across all control circuits.
- Balanced remanufactured torque converter prevents front stator bushing galling under heavy acceleration.
- BorgWarner friction discs prevent thermal breakdown during stop-and-go commuter traffic driving.
- Hardened intermediate band delivers positive mechanical grip to stop second gear shift slip.
- Precision stator support bushings ensure uninterrupted hydraulic fluid feed to the converter clutch.

AIDCO Bench Dynamometer Pressure Metrics

Technicians secure each remanufactured transmission to an AIDCO test bench to verify internal line pressure across every gear ratio. Pressure readings log 195 PSI in Drive and 245 PSI in Reverse at 1800 RPM. Electronic shift solenoids actuate valve passages within 24 ms under live computer diagnostics. Hydro-testing proves a steady vacuum hold of 21 inHg on all reamed valve body ports. Dyno computer sensors verify zero converter clutch slip under loaded test programs. Fluid testing at 175°F confirms proper hydraulic flow without case leaks.

Installation Directives Field Application Limits

Turn and push the torque converter until you verify three distinct clicks into the pump drive gear lugs. Avoid drawing the transmission against the engine block with bolts before dowels seat. Do not buy this factory spec transmission for turbocharged builds, nitrous setups, or track drag competition.

- Flush chassis radiator heat exchangers with dedicated solvent to remove suspended metal dust.
- Fill with approved Dexron III fluid while monitoring fluid temperature with diagnostic tools.
- Reset transmission shift adaptation data using a diagnostic scan tool before highway driving.

Nationwide Warranty Freight Manifest Details

This remanufactured assembly carries a nationwide 3-Year/100,000-Mile warranty covering mechanical damage and valve body pressure loss. Your delivery crate contains a balanced torque converter, technician installation instructions, dyno pressure test certification, cooler flush tracking sheet, and a pre-paid freight bill of lading for prompt core return pickup.