AX4S 1996 Ford Windstar 3.8L FWD – Remanufactured 4-Speed Automatic Trans

Description

During continuous ten-hour parcel distribution shifts, 230 PSI line pressure protects internal clutch packs against slippage while channeling 225 lb-ft of torque. The Ford Windstar AX4S Remanufactured Transmission powers 1996 Ford Windstar 3.8-liter front-wheel commercial cargo vans. Modernized stamped steel forward clutch pistons eliminate neutral condition faults across demanding multi-stop suburban delivery routes.

Die-cast A380 aluminum casing structures protect synchronous gear sets, precision drive sprockets, and link chains. Stamped steel forward clutch pistons replace failure-prone cast aluminum factory components. Fitted with 3/8-inch inverted flare cooler fittings, this 208-pound four-speed transmission holds 12.2 quarts of fluid and attaches flush to vehicle chassis subframes without custom fabrication.

Key Features of Ford Windstar AX4S

Cargo fleet operators seeking to buy Ford Windstar AX4S remanufactured transmission assemblies obtain heavy-duty units configured for demanding commercial transport. Re-engineered hydraulic passages and furnace-brazed converters stop gear slip during continuous city driving cycles.

• Carbon-metallic friction discs withstand high energy dissipation during fully loaded van accelerations
• Sonnax hard-anodized pressure regulator sleeves maintain constant hydraulic line pressure during heavy pulling
• Electronic pulse-width shift solenoids actuate in 45 milliseconds to execute clean gear changes
• Dynamic computer balancing trims torque converter unbalance down below 0.04 gram-inches to stop cabin vibration
• Carburized planetary gears distribute tooth contact pressure during rapid van stop-and-go driving
• Ground flat reaction separator plates maintain uniform clutch clamp force across all forward gears
• Remanufactured AX4S minivan valve bodies pass strict vacuum testing to verify internal port seals
• Heavy-duty output shaft seals prevent transmission fluid leakage past front CV drive axle stubs

Hydraulic Line Pressure Envelope

Operating line pressures span from 65 PSI at idle up to 230 PSI under full acceleration. Continuous input torque ratings handle 225 lb-ft at 3,600 RPM in severe commercial fleet service. Internal mechanical gear ratios offer 2.77:1 first, 1.54:1 second, 1.00:1 third direct, and 0.69:1 fourth overdrive. Auxiliary fluid coolers dissipate 21 kW of heat, holding operating temperatures between 165°F and 188°F.

Axle Output Spline Dimensions

Differential side gears receive 28-spline front CV half-shafts to transfer torque straight to the drive wheels. The heavy-duty internal park pawl holds 1,550 lb-ft of static driveline load on steep parking ramps. Differential output runout tolerance stays below 0.0014 inches dial indicator runout, eliminating front-end chassis vibration.

TCM Adaptive Relearn Sequence

Technicians must initiate diagnostic TCM adaptive shift programming after installation to ensure smooth clutch engagement profiles. This transmission unit is not engineered for competitive track racing, extreme vehicle speed runs, or towing trailers exceeding manufacturer gross vehicle weight ratings.

• Inspect fluid level and wipe metallic particles from the drain plug every 30,000 miles
• Drain fluid sump and add fresh synthetic transmission oil every 12 months
• Flush the transmission cooling circuit and inspect all line connections every 24 months

Standard Warranty Crate Contents

Every unit includes a 3-Year / 100,000-Mile commercial fleet warranty for lasting vehicle protection. The protective shipping container carries the fully remanufactured transmission unit, balanced torque converter, replacement cooler line washers, installation instructional sheet, and signed dynamometer test results.