4L60E 2007 Chevy Colorado, GMC Canyon & Isuzu i-290 2.9L RWD – Remanufactured 4-Speed Automatic Trans

Description

Formulated for compact fleet pickups, this GMC Canyon 2007 Remanufactured Transmission supports 242 horsepower alongside 245 lb-ft of torque at 5600 engine RPM. Configured for 2WD chassis layouts, this gearbox generates line pressures of 180 to 210 PSI during loaded city driving, providing positive clutch clamping without internal slippage.

Encased in high-pressure die-cast A380 aluminum casing, the internal gear train uses carburized 8620 steel planetary gears paired with segmented graphite friction plates. Hard-anodized valve bore sleeves prevent pressure dropouts across shift valves, while an oversized regulator valve ensures steady line pressure. Fitted with 1/2-inch inverted flare ports, it weighs 160 lbs dry and requires 11.0 quarts of DEXRON-VI fluid including the 298mm torque converter.

Key Features of GMC Canyon

Parts procurement specialists buy GMC Canyon 2007 remanufactured transmission packages to eliminate chronic vehicle downtime across municipal and delivery fleets. This remanufactured drivetrain component restores positive shift engagement and predictable throttle control on commercial routes.

• 4-Speed automatic transmission architecture features 3.06:1 1st gear ratio to move loaded utility bed cargo with minimal throttle effort
• 0.70:1 4th gear overdrive ratio reduces engine RPM to preserve fuel economy on sustained interstate travel routes
• Canyon 2007 replacement valve body includes recalibrated internal bore plugs to eliminate unpredictable shift lag under load
• Canyon 2007 torque converter package features balanced damper springs to absorb engine firing pulses before they enter the driveline
• Heavy-duty reaction sun shells resist torsional fatigue and prevent spline shearing during abrupt stop-and-go driving
• Wide carbon-composite 2-4 bands provide steady clamping power to prevent intermediate ratio slip under acceleration
• Micro-finished pump rotor faces sustain high-pressure output at idle to maintain positive forward clutch pack engagement
• High-strength forward clutch drums eliminate fatigue cracking around internal snap ring grooves under continuous stress

Fluid Dynamics And Gear Spread

Continuous mainline fluid pressures operate between 180 and 210 PSI, holding fluid sump temperatures within 165°F to 185°F under standard commercial loads. Input torque capacities peak at 250 lb-ft at 4600 RPM, channeling force across 3.06:1 1st gear, 1.63:1 2nd gear, 1.00:1 3rd gear, and 0.70:1 4th gear. External radiator cooling circuits dissipate fluid friction heat to protect valve seals.

Driveline Slip Yoke Fitment

The 27-spline output shaft provides micro-finished contact journals for factory two-wheel drive slip yokes. Bellhousing pilot register diameter measures 5.00 inches, and crossmember mounting pad distance sits 23.3 inches from the front casing face. Tailhousing bushing runout stays below 0.0016 inches, protecting driveshaft universal joints against vibration.

Computer Controlled Dyno Protocol

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.