M5R1 Manual Trans for Ford 1990-1994 Ranger 4.0L 2WD, 6 Tooth, Purple

Description

Command 160 horsepower and a 0.79:1 overdrive cruising gear while holding casing sump temperatures below 185°F across demanding high-mileage commercial delivery corridors inside the Ford M5R1 Remanufactured Transmission built for 1990 to 1994 Ford Ranger two-wheel-drive trucks with 4.0-liter engines and purple 6-tooth speedometer drive gears.

The structural die-cast A380 aluminum housing maintains driveline rigidity under continuous work van strain. Precision-machined synchronizer cones ensure crisp gear capture, while internal oil guide scoops lubricate countershaft cluster bearings. Dry weight totals 88 lbs, fluid volume requires 2.8 quarts of Mercon ATF, and the tailhousing incorporates a specific purple 6-tooth nylon speedometer drive gear inside the rear output extension.

Key Features of Ford M5R1

Independent fleet shops buy Ford M5R1 remanufactured transmission packages to eliminate chronic speed sensor mismatch and gear grind. Every rebuilt transmission undergoes rigorous bench testing to ensure precise gear tolerances before field deployment.

• Purple 6-tooth internal drive gear ensures exact speedometer readings with stock axle ratios.
• Micro-polished shift rail detents provide clean gate selection without shifter binding.
• Machined metal shift bore caps stop oil weeping from the upper transmission housing.
• Bench dyno testing validates Ford M5R1 manual drivetrain rotational clearance.
• Heavy-duty 24-spline input shaft handles severe commercial hauling stress without warping.
• Sealed roller bearings minimize rotational resistance to improve fuel mileage.
• Hardened reverse idler gear teeth resist chipping during hurried municipal yard maneuvers.

Torque Output Ratio Profile

Engineered to handle 270 lb-ft sustained input torque at 2,800 RPM, this transmission satisfies severe commercial fleet duty standards. Natural splash lubrication channels maintain fluid sump operating heat between 162°F and 188°F under continuous cargo hauling. Mechanical gear steps feature 3.40:1 first, 2.05:1 second, 1.31:1 third, 1.00:1 fourth, and 0.79:1 fifth gear for high towing force and smooth interstate transit.

Two-Wheel Driveline Fitment

A 28-spline output shaft mates with standard light truck slip yokes measuring 1.25 inches. Bell housing patterns fit 4.0-liter Ford Cologne V6 crankcases without modification. Centerline runout along the front input bearing measures under 0.003 inches, holding driveshaft balance and preventing tailhousing bushing damage during highway transit.

Shifter Adjustment Care Protocol

Firm hand engagement ensures full dog-tooth slide across gear hubs without partial engagement. This manual transmission is not engineered for extreme drag strip launches or overloading beyond vehicle payload limits. Adhering to preventative maintenance intervals protects gear tooth surfaces against galling.

• Inspect fluid level through the side fill plug every 50 hours of courier operation.
• Drain metallic contaminants and refill with fresh Mercon fluid every 30,000 miles.
• Inspect driveshaft slip yoke splines for excessive lash every 12 months.

Warranty Statement Shipping Contents

Supported by a comprehensive 3-Year / 100,000-Mile commercial fleet warranty, this unit ships safely within a molded transport container. Package contents include the remanufactured transmission unit, pre-installed 6-tooth drive gear, detailed installation sheet, and dynamometer verification test sheet verifying quiet gear operation.