S5-47 Manual Trans for Ford 1999 F-series 5.4L & 6.8L 2WD, 5 Speed

Description

Prevent gear tooth chipping under 470 lb-ft sustained modular engine torque while maintaining low lubricant temperatures during severe commercial utility service truck operations using the ZF S5-47 Remanufactured Manual Transmission engineered for 1999 Ford Super Duty F-Series two-wheel drive trucks powered by 5.4-liter Triton V8 and 6.8-liter Triton V10 engines.

Cast aluminum housing construction incorporates the modular Ford engine bolt pattern to fit 5.4-liter V8 and 6.8-liter V10 engines. Carbon-faced synchronizer rings on forward gears halt gear clash during rapid downshifts under loaded commercial beds. Internal mainshafts run on precision tapered roller bearings to suppress gear train whine. Dry weight registers 175 lbs without lubricant. Sump capacity requires 3.4 quarts of synthetic Mercon ATF fluid routed past magnetic drain plugs.

Key Features of ZF S5-47

Vocational fleet operators choose to buy ZF S5-47 remanufactured transmission units to restore factory shift quality in modular engine commercial trucks. Rigorous rebuild protocols eliminate mainshaft endplay deflection to prevent premature gear tooth chipping under severe hauling loads.

• Modular Ford bell housing pattern bolts straight to 5.4L V8 and 6.8L V10 blocks.
• Carbon-composite synchronizer rings halt gear clash during loaded grade descents.
• Induction-hardened helical gear clusters absorb 470 lb-ft continuous input torque.
• Precision ground shift rails maintain positive gate detents to prevent gear pop-out.
• Upgraded tapered roller bearings hold countershaft endplay within factory limits.
• Two-wheel drive rear extension housing supports rotating slip yokes without vibration.
• Tested ZF S5-47 internal components guarantee silent gear mesh at highway speeds.
• High-temp Viton front and rear oil seals stop transmission fluid seepage.

Modular Engine Gearing Torque Ratings

The 5-speed manual gear set provides wide ratio steps featuring 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 470 lb-ft continuous input torque at 2,400 RPM. The deep 5.72:1 first gear permits smooth low-speed work truck maneuvering without slipping the clutch disc. Ribbed aluminum casing walls maximize passive air cooling to maintain lubricant sump temperatures below 180°F during continuous highway transit.

Modular Input Spline Driveshaft Fitment

A 10-spline 1.25-inch diameter input shaft slides flush into standard modular clutch friction discs. The two-wheel drive rear output shaft interfaces straight with driveshaft slip yokes with runout held under 0.002 inches on dial indicators. Extension housing oil seals prevent lubricant weeping onto rotating universal joint yokes.

Modular Drivetrain Fleet Maintenance Standards

Verify clutch release fork pivot adjustment and hydraulic slave cylinder travel prior to operational road testing. Fill the unit through the side inspection port using 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 transmission casing seams and rear extension housing for oil seepage each shift.
• Drain transmission fluid, clean magnetic drain bungs, and refill every 30,000 miles.
• Check manual transmission crossmember isolators and bell housing torque every 12 months.

Modular Truck Commercial Transit Manifest

Covered by an industry-leading 3-Year / 100,000-Mile commercial fleet warranty covering replacement components and certified shop labor. Each secured shipping crate contains one remanufactured manual transmission, new throwout bearing, clutch alignment tool, chassis installation guide, and signed rotational inspection report.