1999 Ford F-150 Differential - Rear - Zumbrota Drivetrain - RAA435-2031A

Rear Axle Assembly
RAA435-2031A
Ratio: 3.55; Ford 9.75 Inch Ring Gear, Rear Drum Brakes, 12 mm Wheel Studs, 1.62 Inch Diameter Wheel Bearing Surface On Axle Shaft, Tag Number: S918A, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts
,*CHECK,1999,3.55,435-2031A,9.75,ASSY,AXLE,DIFFS,DRUM,F150,FORD,RAA,REAR,REMAN,TAG*,
Reman Axle Assembly for 9.75" 1999 F150 3.55 , Rear Drum *Check Tag*
9.75" REMAN AXLE ASSY 1999 FORD F150 3.55, REAR DRUM *CHECK TAG*
9.75" REMAN AXLE Assembly 1999 F150 3.55 , REAR DRUM ~CHECK TAG~ .
Zumbrota Drivetrain Axle Assemblies are rebuilt to the highest quality standards of precision and reliability. Each Axle assembly is thoroughly inspected for straightness, cracks and surface wear. All internal components are fully inspected and tested including ring and pinions, internal gears, clutches and carriers. All bearings and seals are replaced. Gears are fully inspected for optimal tooth contact patterns and correct rolling torque using inch pound measurements for precise setup and longevity. Correct gear backlash is set to ensure proper gear lubrication and quiet operation. Axle tubes are inspected to ensure OEM standards of straightness. Zumbrota uses an exclusive hydro-blast rinse and sandblasting procedure on internal and external parts, followed by a proprietary shot-enticed deep cleaning, setting the standard for Axle assembly remanufacturing.
All tubes are inspected to ensure they are straightened to OEM specifications.
All housings are tested for surface wear and cracks.
100% inspection of all internal parts, including Ring and Pinion’s, Internal Gears, Clutch’s and Carrier’s
100% replacement of bearings, seals, crush sleeves, pinion nuts and shims.
All housings are cleaned utilizing our state of the art hydro blasting and rinsing process. This process is what brings all cases back to the OEM finish.
Correct rolling torque established using inch pound measurement’s for precision setup and longevity
Reman Axle Assy Ford 9.75" 1999 F150 3.55 Ratio, Rear Drum *Check Tag*
All tubes are inspected to ensure they are straightened to OEM specifications.
All housings are tested for surface wear and cracks.
100% inspection of all internal parts, including Ring & Pinion’s, Internal Gears, Clutch’s & Carrier’s
100% replacement of bearings, seals, crush sleeves, pinion nuts and shims.
All housings are cleaned utilizing our state of the art hydro blasting and rinsing process. This process is what brings all cases back to the OEM finish.
Correct rolling torque established using inch pound measurement’s for precision setup and longevity
Axle Type: Semi Floating
California Proposition 65: WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Cover Included: Yes
Fluid Included: No
Gear Ratio: 3.55

Detailed Fitment Results
Year Make Model Sub Model Body Type Drive Type Bed Length (in) Fitment Notes 1999 Ford F-150 Base / Lariat / Lightning / XL / XLT Ratio: 3.55; Ford 9.75 Inch Ring Gear, Rear Drum Brakes, 12 mm Wheel Studs, 1.62 Inch Diameter Wheel Bearing Surface On Axle Shaft, Tag Number: S918A, Without Posi Traction, Does Not Include Hubs, Brakes, Backing Plates, Or Axle Shafts