Ford 8", 28 Spline, Billet End Cap, Nitro Trac Lock

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Ford 8", 28 Spline Nitro Trac-Lock

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.


  • 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 USA


Differential: Ford 8"

Gear Ratio: All Ratios

Axle Splines: 28

Ring Gear Bolts: 10 (included)

Manufacturer: Nitro Gear & Axle

Warranty: 1 Year


1968-1974 Ford E-100 1/2 Ton

1962-1967 Ford Fairlane

1975-1978 Ford Fairmont

1964-1970 Ford Falcon

1975-1978 Ford Granada

1965-1978 Ford LTD

1970-1978 Ford Maverick

1964-1978 Ford Mustang

1971-1980 Ford Pinto

1964-1978 Ford Ranchero

1968-1976 Ford Torino / Grand Torino

1978-1978 Lincoln Zephyr

1975-1980 Mercury Bobcat

1969-1978 Mercury Capri

1962-1977 Mercury Comet

1967-1970 Mercury Cougar


*All Nitro Gear & Axle brand products are warrantied to be free of manufacturer defects for the specified period. Warranty requests must be made by the original purchaser and submitted by the dealer purchased from. Any parts sent for warranty consideration must be pre-approved and shipped prepaid freight to our facility with copy of RGA for our inspection & determination. We will not pay for labor, shipping cost, loss of revenue or perishable goods, commercial losses, costs of telephone calls, shipping or general inconvenience. This is our only warranty expressed or implied. Unauthorized warranty returns may be refused. Warranty generally covers MFG defects in material or workmanship. Abuse, overloading, improper lubrication, misuse, commercial or competition use voids warranty. Normal characteristics are not warrantable, such as Gear whine. Minor cosmetic flaws, dings, burrs from shipping or manufacturing, are not considered defect, it is installer responsibility to address these at time of install. Customer is responsible for shipping charges if warranty is granted. Warranty is for the original purchaser/user, is not transferable. Warranty covers one replacement or credit solely at our discretion. Warranty determinations are at our sole discretion.

In addition to the above conditions, see special notes for these products:

Ring & Pinion - Warrantied against manufacturing defects. 2 years from date of purchase. Must provide set-up specs.

Chromoly front Axles, Excalibur Joints, 30/30 Birfield kits - Warrantied against manufacturing defects for the life of the vehicle. These products are also covered for Breakage. The Shaft / joint must be BROKEN. Wear, twisting, bending are not warrantable. Damages caused by failure of other parts are not warrantable, for example broken U-joint (other than Nitro Excalibur) causing damage to Axle ears.

Rear Chromoly Axles - Warrantied against manufacturing defects for 5 years. These products are also covered for Breakage. The Shaft must be BROKEN. Worn, twisted, or bent axles are not warrantable.


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:


Box Weight: 20.4 lb

Box Dimensions: 1 x 1 x 1 in

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