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Ford 9", 3.250", Nitro 6061 Billet Aluminum Housing
9" HD 3.25" Billet Alum Dropout Housing Case & Pinion Support

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Price: $2,425.50

Product Code: NPDOF9-BILLET-28


Ford 9"/ 10" 3.25" Bore
HD Nitro Billet Aluminum 3rd Member Housing & Pinion Support

Differential: Ford 10"
Gear Ratio: All Ratios
Carriers: All Ford 9"
Manufacturer: Nitro Gear & Axle
Warranty: Nitro

Use with options:
Nitro Full Spool FSF9-35-LW or FSF9-40-LW.
ARB Air Lockers RD99CE or ARB-RD99.
Detroit Locker DET187S-160A
Nitro Limited Slip TORS-F9-35
Nitro Gears Sets Nitro 9.5" or Nitro 10"

Manufactured right here in the U.S. of A., these billet aluminum beauties are CNC machined from aircraft quality 6061-T6 solid billet aluminum. The bearing main caps are then CNC machined from 7075 T6 solid billet aluminum and matched to the housings. Not only does the aluminum add considerably to the overall strength of the 3rd member but at 20-30% less weight than a nodular iron drop-out. Nitro's extreme engineering has produced features like a load bolt for increased resistance to pinion deflection, ARB air locker ready-drilled and tapped airline hole with an optional plug to fill the hole, ARP high strength cap studs, pinion support studs & other hardware, and a compact bearing main cap design which allows fitment into any Ford 9" housing!

Nitro Gear & Axle strives to provide the highest quality differential & axle components available. We take the steps necessary to ensure our parts are dependable. Our product range is continually growing to meet the needs of consumers for new ratios and Fits. At Nitro we know differentials, and know what it takes to provide you with high quality components.

Nitro Gear and Axle Premium Differential Ring and Pinion Gears, Axles and parts


This product can expose you to chemicals including toluene and benzene, which are known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to: www.P65Warnings.ca.gov

  • State of the art CNC machined parts
    Housing body cut from solid 6061-T6 billet aluminum
    Main Caps cut from solid 6061-T6 billet aluminum.
    High-strength load bolt to prevent deflection
    Pre-drilled and tapped for ARB air locker-air line fitting and includes a plug if not using an ARB
    Accepts Ford 9” or 10" Ring & Pinion sets, 28-35 spline pinion
    Far stronger than other OE, Aftermarket Aluminum or Iron Dropout housings
    20-30% lighter than nodular iron drop-outs
    Greater heat dissipation from aluminum vs. iron keeps your oil and gears cooler and lasting longer
    Compact bearing main cap design allows fitment in any stock or aftermarket Ford 9" housing
    Precision machined parts improve gear set-up pattern consistency
    Made in the USA

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