4L80E 1995-1996 Chevrolet/GMC G30, G3500, P30 RWD – Remanufactured 4-Speed Automatic Trans

Description

Formulated for commercial parcel transit, this GMC G3500 1995 Remanufactured Transmission supports 420 horsepower alongside 440 lb-ft of torque at 4800 engine RPM. Configured for 2WD 1-ton commercial van chassis, the 4-Speed unit maintains operating pressures of 180 to 220 PSI across heavy payload routes without shift hesitation or clutch distress.

Built within high-density aluminum casing, the gear train uses heavy-duty helical planetary gearsets paired with premium steel friction plates. Hard-anodized valve bore sleeves eliminate internal cross-leaks, while an upgraded boost valve stabilizes line pressure rise under heavy cargo load. With 1/4-inch NPSM ports, it weighs 225 lbs dry and requires 13.5 quarts of DEXRON-VI fluid with the 310mm torque converter.

Key Features of GMC G3500

Fleet operators buy GMC G3500 1995 remanufactured transmission packages to ensure uninterrupted logistics operations across urban delivery networks. The re-engineered valve body calibration stops shift flare and maintains stable line pressure under maximum cargo capacity.

• 4-Speed heavy-duty automatic transmission architecture features 2.48:1 1st gear ratio to move heavy commercial van payloads off the line
• 0.75:1 4th gear overdrive ratio controls engine RPM on long-distance highway delivery runs to improve fleet efficiency
• G3500 1995 replacement valve body includes recalibrated pressure regulator valves to maintain constant fluid volume
• G3500 1995 torque converter package features furnace-brazed turbine fins to prevent blade deflection under full throttle load
• Rigid center support design prevents internal case lug wear common in heavy commercial van service
• Thick intermediate clutch packs deliver positive clamping force to eliminate ratio slip during full throttle uphill hauls
• Steel separator plates feature micro-finished contact surfaces to prevent cross-leakage between critical fluid channels
• Heavy-duty forward clutch drums resist groove wear and retain uniform clamping force across internal friction packs

Continuous Power Transfer Metrics

Continuous mainline fluid pressures operate between 180 and 220 PSI, holding fluid sump temperatures within 165°F to 185°F under standard commercial loads. Peak continuous input torque reaches 440 lb-ft at 3600 RPM, distributing mechanical load across 2.48:1 1st gear, 1.48:1 2nd gear, 1.00:1 3rd gear, and 0.75:1 4th gear. Fluid cooler circulation loops bleed off excessive friction heat to guard clutch pack linings.

Output Shaft Geometry And Runout

The 32-spline output shaft provides micro-finished contact journals for factory 2WD commercial van slip yokes. Bellhousing pilot register diameter measures 5.00 inches, and crossmember mounting pad distance sits 26.5 inches from the front casing face. Tailhousing bushing runout stays below 0.0016 inches, protecting driveshaft universal joints against vibration.

Dynamometer Shift Map Verification

Every transmission unit undergoes comprehensive hot-fluid dynamometer testing to verify hydraulic circuit pressures and shift solenoid performance under simulated vehicle loads. This gearbox is not engineered for drag strip competition, off-road racing, or chassis with un-flushed transmission fluid coolers.

• Check external transmission cooler lines and verify clear flow every 25,000 miles
• Drain bottom fluid sump and install fresh pan filter media every 12 months
• Inspect slip yoke seal and universal joint condition every 14 operating days

Warranty Statement And Inclusions

Coverage provides an extensive 3-Year unlimited mileage warranty for commercial fleet and private operations. Each heavy-duty wooden crate includes the complete remanufactured transmission, balanced lockup torque converter, inline fluid filter module, illustrated installation manual, and certified fluid specification tags.