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

Description

Command 420 lb-ft continuous diesel torque and direct engine power through an open SAE 6-bolt PTO window while maintaining low lubricant temperatures on severe commercial routes inside the ZF S5-42 Remanufactured Manual Transmission built for 1992 to 1995 Ford F-Series work trucks equipped with 7.3-liter diesel power plants operating hydraulic vocational accessories.

Rigid cast aluminum casings provide high torsional strength while reducing overall chassis curb weight. Carbon-metallic synchronizer friction surfaces on forward gears resist glazing during severe heavy-load downshifts. Case-hardened 8620 steel countershafts withstand extreme shock loads from high-torque diesel compression braking. The side-mounted SAE 6-bolt PTO aperture includes ready-to-mesh drive gears. Total dry weight registers 175 lbs. Fluid capacity holds 3.4 quarts of synthetic Mercon ATF fluid introduced through magnetic port plugs.

Key Features of ZF S5-42

Fleet mechanics choose to buy ZF S5-42 remanufactured transmission units to restore full PTO pumping capability to aging utility service bodies. Thorough bench remanufacturing replaces all critical synchronizers and bearings to maintain reliable gear engagement under continuous commercial operation.

• Open 6-bolt PTO aperture enables immediate attachment of vocational hydraulic pumps.
• Carbon-faced synchronizer rings halt gear clash during high-load 2-3 shift steps.
• Massive helical gear teeth distribute diesel torque shock across wider gear faces.
• Hardened shift detent plungers prevent gear jump-out on rough unimproved roads.
• Heavy-duty Timken tapered roller bearings hold shaft endplay within factory limits.
• High-capacity cast aluminum casings dissipate internal friction heat without cracking.
• Tested ZF S5-42 internal shift rails provide crisp, positive manual gate selection.
• High-temperature Viton output seals protect chassis underbodies from lubricant seepage.

Transmission Gear Ratios Hydraulic Output

The 5-speed manual gear cluster provides reduction steps of 5.72:1 in first, 2.94:1 in second, 1.61:1 in third, 1.00:1 in fourth, and 0.76:1 in fifth gear overdrive. Continuous duty designation supports up to 420 lb-ft continuous input torque at 2,000 RPM. The integrated PTO drive gear outputs full rotational engine speed to operate hydraulic lifts, log splitters, or tow winches. Natural air circulation across exterior housing ribs holds internal lubricant sump temperatures below 180°F during long interstate hauls.

Driveline Shaft Spline Interface Fitment

A 10-spline 1.25-inch input shaft slides flush into standard 12-inch heavy diesel clutch discs without hanging up. The 2WD rear output shaft connects straight to standard driveline slip yokes with less than 0.002 inches of runout. Integrated rear oil seal retainers prevent ATF leakage onto rotating universal joints.

Hydraulic PTO Setup Field Protocols

Set correct PTO gear lash using precision shims to prevent excessive gear whine during pump operation. Replenish lubricant through the fill bung using synthetic Mercon ATF fluid to the lower edge of the port. 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 housing gaskets and mounting fasteners for oil seepage each shift.
• Drain transmission fluid, inspect magnetic bungs, and refill every 30,000 miles.
• Examine clutch fork pivot bushings and hydraulic release travel every 12 months.

Protective Crate Manifest Fleet Warranty

Backed by an extensive 3-Year / 100,000-Mile commercial fleet warranty covering verified internal components and shop labor. The rugged wooden shipping pallet holds one remanufactured transmission unit, PTO mounting gasket set, pre-lubricated throwout bearing, installation instruction manual, and signed dyno spin sheet.