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Ford 9", 31 Spline, Billet End Cap, Nitro Trac Lock
Ford 9", 31 Spline Nitro Trac-Lock Limited-Slip Differential

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Price: $503.80

Product Code: TLF9-31

Description Vehicle Applications Warranty Information

Ford 9", 31 Spline Nitro Trac-Lock

1966-1986 Ford Bronco
1968-1983 Ford E-100 1/2 Ton
1979-1988 Ford E-150 1/2 Ton
1968-1974 Ford E200 3/4 Ton
1957-1983 Ford F-100 1/2 Ton
1968-1987 Ford F-150 1/2 Ton
1957-1971 Ford Fairlane
1960-1970 Ford Falcon
1959-1974 Ford Galaxie
1975-1979 Ford Granada
1965-1979 Ford LTD
1970-1978 Ford Maverick
1965-1973 Ford Mustang
1957-1979 Ford Ranchero
1955-1979 Ford Thunderbird
1968-1976 Ford Torino / Grand Torino
1968-1971 Lincoln Mark III
1964-1977 Mercury Comet
1967-1979 Mercury Cougar
1975-1980 Mercury Grand Marquis

Differential: Ford 9"
Gear Ratio: All Ratios
Axle Splines: 31
Ring Gear Bolts: 10 (included)
Manufacturer: Nitro Gear & Axle
Warranty: 1 Year

Nitro's Trac-Lock provides the ultimate in traction for Ford 8"& 9" differentials. This is not like the old factory units that had a tendency to crack the case. Nitro's Trac-Lock uses a billet & forged case for strength you can depend on. Great all around torque-bias ensure this unit will suit your needs for Hot Rods, Muscle cars, Vintage show car and even 4x4s.

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

  • Precision manufactured from the highest quality materials, using state-of-the-art machining & heat treating process.
  • 4 Pinion design, with Forged steel case with Billet hat ensure strength.
  • Available in 28 or 31 spline.
  • Assembled in the

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