S5-42 Man Trans for 1992-1995 F-series 7.3L 5 Speed, PTO In Use

Description

A 4.14:1 close ratio first gear paired with an open SAE 6-bolt PTO aperture directs 420 lb-ft continuous torque to drive auxiliary hydraulic equipment on severe duty trucks using the ZF S5-42 Remanufactured Manual Transmission engineered for 1992 to 1995 Ford F-Series heavy work trucks fitted with the 7.3-liter diesel powertrain and active power takeoff units.

One-piece cast aluminum housing architecture provides structural support for severe diesel torque without casing deflection. Carbon-composite synchronizers on second and third gears resist thermal burn during loaded gear changes. Precision-ground steel countershafts and cluster gears transfer extreme low-end torque. The standard SAE 6-bolt PTO side window features a drive gear ready for auxiliary pump engagement. Bare dry weight registers 175 lbs. Sump capacity holds 3.4 quarts of synthetic Mercon ATF fluid.

Key Features of ZF S5-42

Vocational fleet operators choose to buy ZF S5-42 remanufactured transmission units to power hydraulic dump bodies and utility cranes on hard-working diesel chassis. Complete factory rebuild processes eliminate gear jumping and bearing failure under maximum gross vehicle weight ratings.

• Open SAE 6-bolt PTO aperture supports direct mounting of auxiliary hydraulic drive units.
• Carbon-composite synchronizer friction rings prevent gear clash during loaded grade ascents.
• Massive helical cluster gears absorb 420 lb-ft continuous diesel engine torque.
• Hardened steel shift rails maintain positive detent hold to eliminate gear pop-out.
• Heavy-duty tapered roller bearings support mainshaft loads under severe tongue weight.
• Dual-cone synchronizer units eliminate shift hesitation between first and second gears.
• Refurbished ZF S5-42 aluminum casings maintain exact bearing bore concentricity without distortion.
• Viton front and rear oil seals stop ATF fluid leakage past rotating shafts.

Diesel Torque Capacity Gear Ratios

The 5-speed manual gear train features close ratio steps consisting of 4.14:1 in first, 2.37:1 in second, 1.42:1 in third, 1.00:1 in fourth, and 0.77:1 in fifth gear overdrive. Continuous duty designation supports up to 420 lb-ft continuous input torque at 2,000 RPM. Auxiliary PTO drive gearing outputs 100 percent of engine RPM to power winches, wreckers, or dump pumps. Natural convection through the ribbed aluminum casing maintains internal oil sump temperatures below 180°F under full gross vehicle weight loads.

Input Shaft Output Driveline Alignment

A 10-spline 1.25-inch diameter input shaft seats into standard dual-mass or solid flywheel clutch friction plates without bind. The rear output shaft interfaces straight with driveshaft slip yokes or four-wheel drive transfer case hubs. Centerline shaft runout measures under 0.002 inches on dial indicators to prevent rear seal leakage.

Power Takeoff Setup Maintenance Rules

Check PTO drive gear backlash and install correct gasket thicknesses to prevent gear whine prior to auxiliary pump operation. Fill the transmission through the side plug port using approved synthetic Mercon ATF fluid. This unit is not engineered for closed-course drag strip racing, extreme rock crawling, or gross combined vehicle weights exceeding factory chassis tow limits.

• Inspect PTO mounting gasket interfaces and shaft seals for fluid leaks each shift.
• Drain synthetic ATF fluid and clean magnetic drain plugs every 30,000 miles.
• Verify clutch master cylinder fluid levels and mechanical linkage wear every 12 months.

Commercial Crate Manifest Warranty Terms

Protected by an industry-leading 3-Year / 100,000-Mile commercial fleet warranty covering parts and labor. Each heavy wooden shipping crate contains one remanufactured manual transmission, PTO aperture cover gasket, new clutch throwout bearing, installation manual, and signed rotational bench inspection report.