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Eaton Detroit Truetrac® Ford 9" 28 Spline

Eaton Detroit Truetrac® Ford 9" 28 Spline

SKU: 912A587


Regular price $1,065.00
Regular price Sale price $1,065.00
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Suits Ford 9 in.; 28 Spline; 2.75 And Up;

Note:  Requires special bearing sizes:
If converting from Standard carrier to Eaton Truetrac, differentials currently using bearing LM501349 and race LM501310 will require to now use bearing LM102949 and race LM102910

The Detroit Truetrac® is manufactured by Eaton.

Vehicle Applications:

Below car models fitted with Ford 9" housing and 28 spline axles:
Ford Falcon XW, XY, XA, XB & XC 1969-1979 (with 351 Engine)
Mercury 1957-73
Ford 1957-80
Thunderbird 1957-1973
Ford Light Trucks 1957-1987
Fairlane 1962-1973
Comet 1965-67
Cougar 0965-70
Mustang 1965-73


Please Note: Requires special bearing sizes:
If converting from Standard carrier to Eaton Truetrac, differentials currently using bearing LM501349 and race LM501310 will require to now use bearing LM102949 and race LM102910
Gear Ratio: 2.75 & Up

Additional Information:

Improved traction relative to other rear wheel and four wheel drive vehicles
Maintenance free - requires no special lubrication or friction modifiers
Lifetime torque bias retention
Simple, proven design
Smooth and quiet operation
Limits wheel spin-out and improves handling
Performs open, until needed


The Truetrac is the leading helical gear-type limited slip differential in the industry.

Eaton has a proven track record of producing the most effective and dependable traction differentials in the world. Truetrac's patented design of parallel axis, planetary helical gears, provides a smooth and quiet, automatic division of torque. Power transfer is so smooth, it literally goes unnoticed by the driver - even in front wheel drive axles. Because of Truetrac's smooth operation there is no affect on braking characteristics or fuel consumption.

Under normal driving conditions, Truetrac performs like an open differential. On wet, muddy, icy or loose terrain, imbalanced gear forces automatically transfer power to the wheel with the highest traction. The Truetrac limited slip differential responds instantly to torque feedback providing needed traction, anytime, at any speed. Engineered to work efficiently in front and rear axles, semi-floating (C-clip axles) and transfer cases. Proven design, low cost and effective performance, all make the Truetrac limited slip differential the ideal choice for a wide variety of vehicle applications, including emergency vehicles, walk-in vans, motor homes, SUVs, landscape and delivery trucks. Traction Control The Truetrac performs like an open differential under normal conditions, and automatically transfers torque to the wheel with the highest traction when required. The Truetrac can transfer up to 3.5 times more torque to the high traction wheel. This torque transfer ratio (called the bias ratio) is accomplished by using helical side gears and pinions. The bias ratio is the result of pressure exerted by the side gears and pinions against the surface of the differential case. In certain applications, this normal gear engagement may produce temporary driver feedback.


Shipping in Australian

All Items purchased online are shipped from our Head Office/Warehouse located in Kogarah, New South Wales.

Orders are dispatched within 1-2 business days

All orders are sent with detailed tracking information to your email.


We do NOT offer ATL (Authority to Leave) courier option

We do NOT ship to PO Boxes

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We are currently not offering international shipping on our website.  Please contact us, with information on the products you are interested in, and we can send you quotes on Shipping Rates for your order.

If you require more information regarding delivery terms and conditions, please refer to our Shipping/Delivery Policy which outlines our Delivery Policy in more detail.

Local Pick Up/Click & Collect

We’ve introduced Local Pick Up/Click & Collect. That means you can order the product online and pick up from our Kogarah warehouse (find us here). 
For more information refer to our Local Pick Up
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