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Filthy Motorsports: Store > Eaton TrueTrac
Eaton Detroit TrueTrac lockers are Torsen style limited slip differentials that use helical gears instead of clutch packs to offer automatic torque biased traction to both drive wheels at all times. The ingenious design limits the speed of each wheel to 1.5 times faster or slower than the opposite wheel to provide full-time traction while still allowing for wheel speed differentiation in turns. The heavy duty all-gear design not only makes for quite and smooth operation, it requires no maintenance and will never weaken or wear out like a typical limited slip differential.



[ Eaton Detroit TrueTrac Application Chart (PDF) ]


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Eaton Detroit TrueTrac
Dana 44 Eaton Detroit TrueTrac 913A592 | Front 30 Spline (3.92 & Up)
List Price: $567.65
Your Price: $494.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
GM 12 Bolt Truck / GM 12T Eaton Detroit TrueTrac 913A315 | 30 Spline (3.73 & Up)
List Price: $573.63
Your Price: $499.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Land Rover Type Eaton Detroit TrueTrac 910A400 | 10 Spline Rear (3.54)
List Price: $567.65
Your Price: $499.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Land Rover Type Eaton Detroit TrueTrac 910A416 | 10 Spline Front (3.54)
List Price: $567.65
Your Price: $499.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Land Rover Type Eaton Detroit TrueTrac 910A460 | 10 Spline Rear (4.70)
List Price: $663.93
Your Price: $629.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Land Rover Type Eaton Detroit TrueTrac 910A461 | 10 Spline Front (4.70)
List Price: $663.93
Your Price: $629.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
GM 7.5" 10 Bolt Eaton Detroit TrueTrac 911A319 | 26 Spline C-Clip (3.23 & Up)
List Price: $490.67
Your Price: $429.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
GM 7.5" 10 Bolt Eaton Detroit TrueTrac 911A415 | 26 Spline C-Clip (3.08 & Down)
List Price: $490.67
Your Price: $429.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
GM 7.5" / 7.625" Eaton Detroit TrueTrac 912A317 | 28 Spline (3.23 & Up)
List Price: $490.67
Your Price: $429.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
GM 8.5" Eaton Detroit TrueTrac 912A556 | 28 Spline C-Clip (2.73 & Up)
List Price: $529.16
Your Price: $459.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
GM 8.5" Eaton Detroit TrueTrac 912A557 | 28 Spline (2.73 & Up)
List Price: $529.16
Your Price: $459.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
GM 8.5" / 8.6" Eaton Detroit TrueTrac 913A481 | 30 Spline C-Clip (2.73 & Up)
List Price: $529.16
Your Price: $459.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
GM 8.0" Eaton Detroit TrueTrac 912A654 | 28 Spline C-Clip
List Price: $526.00
Your Price: $499.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
GM 9.5" 14 Bolt Eaton Detroit TrueTrac 914A538 | 33 Spline C-Clip
List Price: $625.44
Your Price: $549.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
GM 12 Bolt Passenger / GM 12P Eaton Detroit TrueTrac 913A555 | 30 Spline (3.08 - 3.90)
List Price: $548.46
Your Price: $519.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
GM 12 Bolt Passenger / GM 12P Eaton Detroit TrueTrac 914A575 | 33 Spline (4.10 & Up)
List Price: $567.65
Your Price: $539.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
GM 12 Bolt Passenger / GM 12P Eaton Detroit TrueTrac 914A576 | 33 Spline (3.08 - 3.90)
List Price: $567.65
Your Price: $539.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Land Rover Type Eaton Detroit TrueTrac 912A383 | 24 Spline Rear (3.54)
List Price: $567.65
Your Price: $499.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Land Rover Type Eaton Detroit TrueTrac 912A407 | 24 Spline Front (3.54)
List Price: $567.65
Your Price: $499.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Salisbury Defender Eaton Detroit TrueTrac 912A593 | 24 Spline Rear (4.10 & Down)
List Price: $703.78
Your Price: $619.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Chrysler 8.25" Eaton Detroit TrueTrac 912A553 | 29 Spline (2.73 & Up)
List Price: $686.22
Your Price: $649.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Chrysler 8.75" Eaton Detroit TrueTrac 914A583 | 33 Spline (2.76 - 4.56)
List Price: $644.63
Your Price: $559.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Chrysler 8.75" Eaton Detroit TrueTrac 913A572 | 30 Spline (2.76 - 4.56)
List Price: $663.93
Your Price: $579.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Chrysler 9.25" Eaton Detroit TrueTrac 913A368 | 31 Spline (2.76 - 4.56)
List Price: $663.93
Your Price: $579.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
M20 / AMC Model 20 Eaton Detroit TrueTrac 912A549 | Front 29 Spline (2.73 & Down)
List Price: $654.90
Your Price: $569.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
M20 / AMC Model 20 Eaton Detroit TrueTrac 912A573 | Rear 29 Spline (2.73 & Down)
List Price: $663.93
Your Price: $579.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
M20 / AMC Model 20 Eaton Detroit TrueTrac 912A579 | Rear 29 Spline (3.08 & Up)
List Price: $663.93
Your Price: $579.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Ford 7.5" Eaton Detroit TrueTrac 912A316 | 28 Spline
List Price: $589.88
Your Price: $514.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Ford 8" Eaton Detroit TrueTrac 912A616 | 28 Spline (3.25 & Up)
List Price: $703.78
Your Price: $614.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Ford 8.8" Eaton Detroit TrueTrac 913A561 | 31 Spline
List Price: $567.65
Your Price: $495.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Ford 8.8" Eaton Detroit TrueTrac 912A562 | 28 Spline
List Price: $567.65
Your Price: $495.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Ford 8.8" IFS Eaton Detroit TrueTrac 912A563 | Front 28 Spline
List Price: $567.65
Your Price: $495.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Ford 9 Inch Eaton Detroit TrueTrac 912A587 | 28 Spline (3.25 & Up)
List Price: $603.99
Your Price: $529.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Ford 9 Inch Eaton Detroit TrueTrac 913A586 | 31 Spline (3.25 & Up)
List Price: $603.99
Your Price: $529.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Ford 9.75" Eaton Detroit TrueTrac 913A477 | 34 Spline
List Price: $625.44
Your Price: $544.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Ford Sterling 10.25" & 10.5" Eaton Detroit TrueTrac 915A550 | 35 Spline
List Price: $702.42
Your Price: $609.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
AAM 9.25" IFS Eaton Detroit TrueTrac 914A643 | 33 Spline (Dodge Only)
List Price: $663.92
Your Price: $629.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
GM 11.5" Eaton Detroit TrueTrac 915A568 | 30 Spline
List Price: $1,043.86
Your Price: $989.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Toyota 7.5" IFS Eaton Detroit TrueTrac 911A445 | 1.10" 27 Spline
List Price: $581.99
Your Price: $509.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Toyota 7.5" IFS Eaton Detroit TrueTrac 911A644 | 1.30" 27 Spline
List Price: $540.96
Your Price: $514.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Toyota 8" Eaton Detroit TrueTrac 913A609 | Front 30 Spline (2 Pinion / 4Cyl)
List Price: $522.05
Your Price: $454.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Toyota 8" Eaton Detroit TrueTrac 913A611 | Rear 30 Spline (4Cyl Non-Turbo)
List Price: $522.05
Your Price: $454.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Toyota 8" V6 / TV6 Eaton Detroit TrueTrac 913A610 | 30 Spline (Rear)
List Price: $522.05
Your Price: $454.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Toyota 8" V6 / TV6 Eaton Detroit TrueTrac 913A612 | 30 Spline (Front)
List Price: $522.05
Your Price: $454.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Toyota T100 and Tacoma Eaton Detroit TrueTrac 913A541 | Rear 30 Spline
List Price: $567.65
Your Price: $494.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Dana 30 Eaton Detroit TrueTrac 912A588 | Rear 27 Spline (3.73 & Up)
List Price: $603.99
Your Price: $524.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Dana 30 Eaton Detroit TrueTrac 912A585 | Front 27 Spline (Reverse Rotation)
List Price: $490.67
Your Price: $429.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Dana 35 / AMC Model 35 Eaton Detroit TrueTrac 912A569 | Rear 27 Spline (3.54 & Up)
List Price: $490.67
Your Price: $524.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Dana 44 Eaton Detroit TrueTrac 913A589 | Rear 30 Spline (3.73 & Down)
List Price: $567.65
Your Price: $494.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
Eaton Detroit TrueTrac
Dana 44 Eaton Detroit TrueTrac 913A590 | Rear 30 Spline (3.92 & Up)
List Price: $567.65
Your Price: $494.95

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement.
   
 
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