AX4S 1994-1995 Ford/Mercury Taurus/Sable 3.8L FWD – Remanufactured 4-Speed Automatic Trans

Description

Across sustained interstate delivery routes, holding 220 PSI pump pressure preserves overdrive engagement under 215 lb-ft loads without fluid overheating. The Mercury Sable AX4S Remanufactured Transmission supports 1994 to 1995 Ford Taurus and Mercury Sable 3.8-liter front-wheel wagons and sedans. Upgraded steel clutch pistons and re-sleeved valve bodies eliminate ratio flare during highway cruising.

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 205-pound four-speed transmission holds 12.0 quarts of fluid and attaches flush to vehicle chassis subframes without custom fabrication.

Key Features of Mercury Sable AX4S

Commercial garage operators planning to buy Mercury Sable AX4S automatic transmission units obtain dependable drivetrain components built for severe duty. Upgraded hydraulic circuitry halts converter shudder and protects internal clutches against early wear.

• Updated stamped steel forward clutch pistons eliminate hydraulic pressure loss caused by cracked cast pistons
• Sonnax hard-coat line pressure regulator sleeves prevent internal fluid cross-leakage across valve tracts
• Computer-calibrated electronic shift solenoids maintain precise synchronous gear handoffs
• Balanced torque converters feature furnace-brazed turbine fins to prevent structural deformation under load
• Hardened steel planetary gears feature refined tooth profiles that limit gear noise and mechanical friction
• Precision-ground steel reaction plates distribute clamp forces in balance across all friction interfaces
• Remanufactured AX4S wagon valve assemblies undergo multi-circuit vacuum decay testing on each bore
• Heavy-duty output shaft seals protect against fluid weeping past front half-shaft CV joints

Continuous Torque Output Capacity

Line pressure operates across a controlled span from 60 PSI idle pressure up to 220 PSI under maximum engine load. Continuous input torque ratings handle 215 lb-ft at 3,800 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 19 kW of heat, holding operating temperatures between 165°F and 188°F.

Drive Axle Spline Interface

The internal differential provides 28-spline output hubs that engage factory CV joint axle shafts without binding. The heavy-duty park pawl gear system withstands 1,450 lb-ft of holding torque on steep parking grades. Differential output runout tolerance measures under 0.0014 inches dial indicator runout, keeping vehicle propulsion steady across all speed ranges.

Synchronous Shift Calibration Protocol

Complete a diagnostic road test adaptation after installation to confirm correct one-way roller clutch lockup and shift timing. This transmission unit is not engineered for competitive track drag racing, extreme vehicle speed trials, or gross vehicle weights exceeding factory chassis 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

Commercial Warranty Crate Manifest

Supplied with a comprehensive 3-Year / 100,000-Mile commercial fleet warranty, this drivetrain delivers verified commercial durability. The heavy shipping box contains the remanufactured transmission unit, balanced torque converter, replacement cooler line crush washers, detailed installation manual, and dyno test printout.