A604 2004-2006 Chrysler Pacifica 3.5L FWD – Remanufactured 4-Speed Automatic Trans

Description

Die-cast A380 aluminum casing structures and high-tensile ductile iron carriers absorb front-wheel-drive torsional shock while managing 250 lb-ft torque during relentless regional commercial crossover transit. Operators choose the Chrysler Pacifica 3.5L FWD Transmission for 2004 to 2006 vehicles to eliminate shift flare and maintain schedule punctuality under full passenger capacity.

A rigid die-cast aluminum transaxle case holds tight gear mesh tolerances under high throttle inputs from transverse 3.5L SOHC 24-valve V6 engines. The rebuilt valve body features reamed bores fitted with hard-anodized Sonnax sleeves that halt hydraulic circuit leakage. High-energy friction plates with radial cooling grooves distribute heat away from steel reaction discs. Dimensions include an 8.9-quart ATF+4 fluid sump capacity, standard 5/16-inch inverted flare cooler fittings, and an empty dry weight of 178 pounds.

Key Features of Pacifica 3.5L

Commercial fleet operators buy Pacifica 3.5L remanufactured transmission units to restore original drivetrain performance across executive crossover and airport shuttle fleets. Each remanufactured transaxle incorporates upgraded internal wear components and solenoid blocks to surpass original factory durability standards.

• 160 PSI peak line pressure clamps clutch packs tight to eliminate flare.
• 4 forward gear ratios optimize acceleration and highway cruising economy.
• Hard-anodized valve bore sleeves halt hydraulic fluid bypass inside the body.
• Radial groove carbon friction plates resist glazing under stop-and-go driving conditions.
• Furnace-brazed torque converters eliminate internal fin vibration at highway cruising speeds.
• High-output fluid pumps preserve hydraulic pressure across high operating temperatures.
• A Pacifica 3.5L transaxle unit utilizes pulse-width modulated linear shift solenoids.
• Precision planetary carrier gear sets maintain tight lash tolerances under continuous load.

V6 Hydraulic Pressure Gear Matrix

Main line fluid circuits maintain between 120 and 160 PSI pump pressure to lock clutch packs without slip under load. Operating sump temperatures stay within a stable 155°F to 185°F range to safeguard transmission fluid integrity. The gear train withstands 250 lb-ft continuous input torque at 3,800 RPM under High-Mileage Transit service conditions. Auxiliary cooler channels dissipate 24 kW of heat through internal radiator heat exchangers. Gear ratios measure 2.84:1 in first gear, 1.57:1 in second gear, 1.00:1 in direct third, and 0.69:1 in overdrive.

Pacifica Front Axle Spline Interface

Differential output gears feature precision 26-spline female connections that mate straight with factory front CV drive axle stubs. The internal park pawl mechanism holds up to 1,550 lb-ft holding torque to hold passenger crossovers on steep grades. Mechanics must check drive axle seal condition and verify bell housing runout within 0.002 inch.

Crossover Shift Maintenance Protocol

Pulse-width modulated shift solenoids communicate with the vehicle powertrain control module to coordinate precise gear shift sequences. Note that this transaxle unit is not engineered for track drag strip racing, extreme aftermarket turbo modifications, or commercial cargo towing exceeding vehicle gross weight ratings.

• Check transmission fluid level and inspect fluid color on dipsticks each shift.
• Drain fluid pan and replace the internal pickup filter every 30,000 miles.
• Flush radiator cooler lines and verify pump circuit pressure every 12 months.

Crossover Fleet Warranty Manifest

Every transaxle includes a 3-Year / 100,000-Mile commercial fleet warranty for complete operational peace of mind. The heavy wooden transit container contains the complete remanufactured transaxle, a balanced lockup torque converter, brand-new drive axle seals, an installation guide, and an ATSG dyno verification test sheet with recorded pressure graphs.