Detroit Truetrac

Off-Road Parts

Helpful Links

We Specialize in Exporting

Like our Facebook page and
follow us on Twitter for access
to specials and discount codes!

Store > Lockers and Gears >

Detroit Truetrac Locker

Additional Images

Sold Individually
Select your options and then click the "update price" button below:

Starting At: $449.95

Availability: Usually Ships in 24 to 48 Hours
Product Code: FM-DETTRUETRAC

Select Detroit Truetrac Model

- Details: By Vehicle | By Locker Model

Qty:

Description

Part Numbers

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. These unique features make the Detroit Truetrac ideal for race cars, rally cars, trail rigs, and daily drivers.

The Detroit Truetrac is a Torsen style differential that provides constant power to both drive wheels at all times while still allowing for wheel speed differentiation. The design works so well that the US military chose the Torsen differential as standard equipment on the Hummer.

Selecting the right locker model is easy using the detailed locker application table below. All of the currently available Detroit Truetrac locker models are listed according to the vehicle(s) for which they are compatible. Simply find your vehicle in the list and locate the Detroit Truetrac part number in the far right column and select it from the pull-down menu above. In some instances you will need to know what type of axle your vehicle has and if you need help finding this information you can call or email us for assistance.

Specialty and High Performance Detroit Truetrac Lockers
The following specialty and high performance models of Detroit Truetrac are available for custom applications:

Application	Axle	Spline	Ratio	Part #

Custom and High Performance Applications	Chrysler 8.75	30	2.76 +	913A572
	Chrysler 8.75	33	2.76 +	914A583 (a)
	Dana 30 (Volvo Rear)	27	3.73 +	912A588
	Dana 60	35	4.56 +	915A386
	Dana 60	35	4.10 -	915A385
	64-72 GM 12 Bolt (Car)	33	4.10 +	914A575 (a)
	64-72 GM 12 Bolt (Car)	33	3.90 -	914A576 (a)
	Toyota 7.5 (Legend / Celica)	27	All	911A565 (b)

	(a) 33 spline units are made to fit axles cut with a 45 degree pressure angle. (b) Fits “large” hub with 50 mm bearing using Toyota bearing #90368-50006.

Chrysler, Dodge, and Plymouth Detroit Truetrac Lockers
The following models of Detroit Truetrac are available for Dodge, Plymouth, and Chrysler vehicles:

Vehicle(s)	Axle	Year	Description	Spline	Ratio	Part #

D-50, 100, 150, 200, 250, A, B, D, W	Front	84-01	Dana 44	30	3.92 +	913A592
	Front	84-01	Dana 44	30	3.73 -	913A591
	Front	71-93	Dana 60 HD	35	4.56 +	915A388
	Front	71-93	Dana 60 HD	35	4.10 -	915A387
	Rear	03-09	AAM (11.5")	30	All	915A568
	Rear	97-09	Chrysler C-Clip (8.375")	29	2.73 +	912A553
	Rear	74-09	Chrysler C-Clip (9.25")	31	2.76 +	913A368
	Rear	69-74	Chrysler (8.75")	30	2.76 +	913A572
	Rear	69-74	Chrysler (8.75")	33	2.76 +	914A583 (a)
	Rear	94-01	Dana 44 (Viper)	--	All	913A614
	Rear	72-02	Dana 60	30	4.56 +	913A390
	Rear	72-02	Dana 60	30	4.10 -	913A389

300, 350, 400, B, C, M, W	Front	03-09	AAM (9.5")	33	All	914A643
	Front	76-00	Dana 60 HD	35	4.56 +	915A388
	Front	76-00	Dana 60 HD	35	4.10 -	915A387
	Rear	03-09	AAM (11.5")	30	All	915A568
	Rear	75-02	Dana 60 / HD / M	30	4.56 +	913A390
	Rear	75-02	Dana 60 / HD / M	30	4.10 -	913A389
	Rear	94-02	Dana 80	35	4.10 +	915A450
	Rear	94-02	Dana 80	35	3.73 +	915A567

	(a) 33 spline units are made to fit axles cut with a 45 degree pressure angle.

Ford, Lincoln, and Mercury Detroit Truetrac Lockers
The following models of Detroit Truetrac are available for Ford, Lincoln, and Mercury vehicles:

Vehicle(s)	Axle	Year	Description	Spline	Ratio	Part #

Cars, Small trucks, Mini Vans, and SUVs	Front	83-96	Dana 44 C-Clip	30	3.92 +	913A592
	Front	83-96	Dana 44 C-Clip	30	3.73 -	913A591
	Front	To 82	Dana 44	30	3.92 +	913A592
	Front	To 82	Dana 44	30	3.73 -	913A591
	Front	97-09	Ford IFS	28	All	912A563
	Rear	78-09	Ford 7.5	28	All	912A316
	Rear	To 78	Ford 8 Inch	28	3.25 +	912A616 (c)
	Rear	87-09	Ford 8.8 C-Clip	31	All	913A561 (d)
	Rear	83-09	Ford 8.8 C-Clip	28	All	912A562
	Rear	To 79	Ford 9 Inch	28	3.25 +	912A587
	Rear	57-78	Ford 9 Inch	31	3.25 +	913A586

F-100, F-150, Trucks, Vans, & SUVs	Rear	77-79	Dana 44	30	3.92 +	913A590
	Rear	77-79	Dana 44	30	3.73 -	913A589
	Rear	87-09	Ford 8.8 C-Clip	31	All	913A561
	Rear	57-87	Ford 9 Inch	28	3.25 +	912A587
	Rear	57-87	Ford 9 Inch	31	3.25 +	913A586
	Rear	97-09	Ford 9.75 Inch	34	All	913A477

F-250, E-250, Excursion (98 + Super Duty)	Front	83-97	Dana 44 C-Clip IFS	30	3.92 +	913A592
	Front	83-97	Dana 44 C-Clip IFS	30	3.73 -	913A591
	Front	To 82	Dana 44	30	3.92 +	913A592
	Front	To 82	Dana 44	30	3.73 -	913A591
	Fornt	To 79	Dana 60	35	4.56 +	915A388
	Front	To 79	Dana 60	35	4.10 -	915A387
	Front	97-07	Ford 8.8 IFS Snap-Ring	28	All	912A563
	Rear	75-84	Dana 60-3	30	4.56 +	913A390
	Rear	75-84	Dana 60-3	30	4.10 -	913A389
	Rear	85-09	Ford 10.25/10.5 (Sterling)	35	All	915A550 (e)

F-350, F-450, F-550 Truck, Vans, Chassis Cab (98 + Super Duty)	Fornt	78-79	Dana 60	35	4.56 +	915A388
	Front	79-07	Dana 60	35	4.10 -	915A387
	Rear	78-79	Dana 60 (Snowplow pkg.)	30	4.56 +	913A390
	Rear	78-79	Dana 60 (Snowplow pkg.)	30	4.10 -	913A389
	Rear	90-98	Dana 80	37	4.10 +	916A427
	Rear	90-98	Dana 80	37	3.73 -	916A566
	Rear	98-09	Dana 80	35	4.10 +	915A450
	Rear	98-09	Dana 80	35	3.73 -	915A567
	Rear	85-09	Ford 10.25/10.5 (Sterling)	35	All	915A550 (e)

	(c) Ford 8” Truetrac application requires Timken part numbers LM102949 and LM102910. (d) 2005 and up Mustang requires axle spacer modification. (e) Fits only full-floating axle models.

General Motors Detroit Truetrac Lockers
The following models of Detroit Truetrac are available for Chevy, GMC, Pontiac, Buick, and Oldsmobile vehicles:

Vehicle(s)	Axle	Year	Description	Spline	Ratio	Part #

Chevrolet, Pontiac, Buick, and Oldsmobile Cars	Rear	71-89	GM 10 Bolt C-Clip (8.5")	28	2.73 +	912A556
	Rear	75-89	GM 10 Bolt C-Clip (7.5")	26	3.23 +	911A319
	Rear	75-89	GM 10 Bolt C-Clip (7.5")	26	3.08 -	911A415
	Rear	88-05	GM 10 Bolt (7.5" / 7.6")	28	3.23 +	912A317
	Rear	88-96	GM 10 Bolt C-Clip (8.5" / 8.6")	30	2.73 +	913A481 (f)
	Rear	64-72	GM 12 Bolt (8.875")	30	3.90 -	913A555 (a)
	Rear	64-72	GM 12 Bolt (8.875")	33	4.10 +	914A575 (a)
	Rear	64-72	GM 12 Bolt (8.875")	33	3.90 -	914A576 (a)
	Rear	04-06	GTO / Monaro	28	All	912A642

Corvette	Rear	85-96	Dana 44	30	All	913A614
Corvette
10/1500, C, G, K, P, Blazer, Jimmy, Yukon, Suburban, Vans	Front	To 80	Dana 44	30	3.92 +	913A592
	Front	To 80	Dana 44	30	3.73 -	913A591
	Front	77-88	GM 10 Bolt (8.5")	28	2.73 +	912A557
	Rear	88-09	GM 10 Bolt (7.5" / 7.6")	28	3.23 +	912A317
	Rear	82-89	GM 10 Bolt C-Clip (7.5")	26	3.23 +	911A319
	Rear	82-89	GM 10 Bolt C-Clip (7.5")	26	3.08 -	911A415
	Rear	02-10	GM 10 Bolt C-Clip (8.0")	28	All	912A654
	Rear	88-09	GM 10 Bolt C-Clip (8.5" / 8.6")	30	2.73 +	913A481 (f)
	Rear	72-89	GM 10 Bolt (8.5")	28	2.73 +	912A556
	Rear	To 82	GM 12 Bolt (8.875")	30	3.73 +	913A315
	Rear	81-07	GM 14 Bolt C-Clip (9.5")	33	All	914A538

20/2500, C, G, K, P, Cab Chassis, Pickup, Suburban, Rally, Sportvan	Front	To 80	Dana 44	30	3.92 +	913A592
	Front	To 80	Dana 44	30	3.73 -	913A591
	Front	77-91	GM 10 Bolt (8.5")	28	2.73 +	912A557
	Rear	01-09	AAM (11.5")	30	All	915A568
	Rear	To 74	Dana 60	30	4.56 +	913A390
	Rear	To 74	Dana 60	30	4.10 -	913A389
	Rear	75-77	Dana 60 HD	35	4.56 +	915A386
	Rear	75-77	Dana 60 HD	35	4.10 -	915A385
	Rear	88-07	GM 10 Bolt C-Clip (8.5" / 8.6")	30	2.73 +	913A481 (f)
	Rear	78-89	GM 10 Bolt (8.5")	28	2.73 +	912A556
	Rear	81-09	GM 14 Bolt C-Clip (9.5")	33	All	914A538

30/3500, C, K, G, P, RV, Pickup, Suburban, Rally, Sportvan	Front	77-87	Dana 60 HD	35	4.56 +	915A388
	Front	77-87	Dana 60 HD	35	4.10 -	915A387
	Rear	01-09	AAM (11.5")	30	All	915A568
	Rear	75-77	Dana 60 HD (G-Series)	35	4.56 +	915A386
	Rear	75-77	Dana 60 HD (G-Series)	35	4.10 -	915A385
	Rear	88-09	GM 14 Bolt C-Clip (9.5")	33	All	914A538

3500 HD	Rear	01-09	AAM (11.5")	30	All	915A568
	Rear	92-07	Dana 80	37	4.10 +	916A427
	Rear	92-07	Dana 80	37	3.73 -	916A566

	(a) 30 and 33 spline units are made to fit axles cut with a 45 degree pressure angle. (f) Timken LM102949 bearing and LM102911 race required for pre 1999 vehicles. Timken LM104949 bearing and LM104912 race required for 1999 and newer vehicles.

Hummer Detroit Truetrac Lockers
The following models of Detroit Truetrac are available for Hummer vehicles:

Vehicle(s)	Axle	Year	Description	Spline	Ratio	Part #

Hummer H1	Front	All	AMC 20 (8.875")	29	2.73 -	912A549
	Rear	All	AMC 20 (8.875")	29	3.08 +	912A579
	Rear	All	AMC 20 (8.875")	29	2.73 -	912A573

Hummer H2	Rear	03 +	GM 14 Bolt (9.5")	33	All	914A538
Hummer H2
Hummer H3	Rear	03 +	GM 10 Bolt (8.6")	30	2.73 +	913A481

Isuzu Detroit Truetrac Lockers
The following models of Detroit Truetrac are available for Isuzu vehicles:

Vehicle(s)	Axle	Year	Description	Spline	Ratio	Part #

Rodeo	Rear	93-00	Dana 44 (8.5"/9.0")	30	3.92 +	913A590
	Rear	93-00	Dana 44 (8.5"/9.0")	30	3.73 -	913A589
	Rear	89-93	GM 10 Bolt (US Only)	28	3.23 +	912A317

Jeep Detroit Truetrac Lockers
The following models of Detroit Truetrac are available for Jeep vehicles:

Vehicle(s)	Axle	Year	Description	Spline	Ratio	Part #

Wrangler, Cherokee Grand Cherokee, Wagoneer, Liberty, Commander	Front	71-09	Dana 30	27	3.73 +	912A585 (a)
	Front	71-09	Dana 30	27	3.54 -	912A584 (a)
	Front	70-09	Dana M-44-IF, IFHD	30	3.92 +	913A592 (a)
	Front	70-09	Dana M-44-IF, IFHD	30	3.73 -	913A591 (a)
	Rear	76-86	AMC 20	29	3.08 +	912A579
	Rear	76-86	AMC 20	29	2.73 -	912A573
	Rear	91-96	Chrysler C-Clip (8.375")	27	All	912A553
	Rear	84-09	Dana 35 C-Clip	27	3.54 +	912A569
	Rear	85-89	Dana 35 Non C-Clip	27	3.54 +	912A569
	Rear	97-06	Dana 44 (Wrangler)	30	3.92 +	913A590
	Rear	97-06	Dana 44 (Wrangler)	30	3.73 -	913A589
	Rear	69-09	Dana 44 (Various)	30	3.92 +	913A590
	Rear	69-09	Dana 44 (Various)	30	3.73 -	913A589
	Rear	74-88	Dana M60-3R	30	4.56 +	913A390
	Rear	74-88	Dana M60-3R	30	4.10 -	913A389

	(a) Timken LM102949 bearing, LM102911 race, and unique shims are required.

Land Rover Detroit Truetrac Lockers
The following models of Detroit Truetrac are available for Land Rover vehicles:

Vehicle(s)	Axle	Year	Description	Spline	Ratio	Part #

Rover & Salisbury Axles	Front	93-00	Rover Type	24	3.54	912A407 (g)
	Front	85-93	Rover Type	10	3.54	910A416 (h)
	Front	To 85	Rover Type	10	4.70	910A461
	Rear	93-00	Rover Type	24	3.54	912A383 (i)
	Rear	85-93	Rover Type	10	3.54	910A400 (j)
	Rear	To 85	Rover Type	10	4.70	910A460
	Rear	To 85	Salisbury Defender	24	4.10 -	912A593

	(g) Axle serial numbers 49L11363C or 57L05188B and later. (h) Axle serial numbers and later: Range Rover - suffix H, 88/109 4 cyl. ¾ ton - suffix H, 109 V8/1ton - suffix D. (i) Axle serial numbers 35S18135C or 37S08651B and later. (j) (p) Axle serial numbers and later: Range Rover - suffix F, 88 -suffix G, 109 V8/1ton - (Salisbury standard), 109 4 cyl. ¾ ton - (Salisbury optional).

Nissan Detroit Truetrac Lockers
The following models of Detroit Truetrac are available for Nissan vehicles:

Vehicle(s)	Axle	Year	Description	Spline	Ratio	Part #

Titan, Xterra, Frontier	Rear	03-07	Titan M226	32	All	913A582 (k)
	Rear	03-07	Xterra M226 (Manual)	32	All	913A582 (k)
	Rear	05-07	Frontier M226 (Option)	32	All	913A582 (k)

	(k) All 913A582 vehicles equipped with OE Electric Locker require modification.

Saab Detroit Truetrac Lockers
The following models of Detroit Truetrac are available for Saab vehicles:

Vehicle(s)	Axle	Year	Description	Spline	Ratio	Part #

9-7X	Rear	05.5-07	GM 10 bolt (9-7X)	30	2.73 +	913A481

Toyota Detroit Truetrac Lockers
The following models of Detroit Truetrac are available for Toyota vehicles:

Vehicle(s)	Axle	Year	Description	Spline	Ratio	Part #

Tacoma, Tundra, T-100, Hilux, 4Runner, Celica	Front	74-85	8" (2 Pinion)	30	All	913A609 (l)
	Front	86-88	7.5" IFS (4 Cyl)	27	All	911A445 (l, m)
	Front	89-95	7.5" IFS (4 Cyl)	27	All	911A342 (m, n)
	Front	86-04	7.5" IFS (6 Cyl 4Runner)	27	All	911A445 (l)
	Front	86-95	7.5" IFS (6 Cyl)	27	All	911A342 (m)
	Front	95-04	7.5"	27	All	911A644 (l)
	Rear	80-95	7.5"	27	All	911A565 (n)
	Rear	74-96	8" (2 Pinion, Non-Turbo)	30	All	913A611 (l)
	Rear	86-96	8" (4 Pinion, 4 Cyl, 4x4)	30	All	913A610 (o)
	Rear	86-96	8" (4 Pinion, 6 Cyl, 4x4)	30	All	913A610 (n)
	Rear	86-96	8" (4 Pinion, 2WD Chassis Cab)	30	All	913A610 (n)
	Rear	95-05	8.4" (4 Cyl Tacoma, Tundra, T-100)	30	3.54 +	913A541
	Rear	95-05	8.4" (6 Cyl Tacoma, Tundra, T-100)	30	3.54 +	913A541
	Rear	95-05	8.4" (4 Cyl Legend Racer Series)	27	All	911A565 (n)
	Rear	95-05	8.4" (6 Cyl Legend Racer Series)	27	All	911A565

Land Cruiser II, FJ Cruiser	Front	90-07	8" (4 Pinion)	30	All	913A612 (n)
	Rear	05-09	8.0" (FJ)	30	All	913A610

	(l) Fits "small” hub bearing dia. 45 mm. (m) Will not fit selector disconnect “shift on the fly.” (n) Fits "large” hub bearing dia. 50 mm. using Toyota bearing #90368-50006. (o) 32010X bearing allows 913A610 in place of 913A611.

Detroit Truetrac locker images are © Copyright Eaton Corporation, used with permission.
Additional images and product descriptions are © Copyright Filthy Motorsports, LLC.

Detroit Truetrac Locker Models:
The following is a complete list of available Detroit Truetrac Lockers listed by part number:

Part Number	Description	Ratios

910A400	Detroit Truetrac Rover Type	3.54
910A416	Detroit Truetrac Rover Type	3.54
910A460	Detroit Truetrac Rover Type	4.7
910A461	Detroit Truetrac Rover Type	4.7
911A319	Detroit Truetrac GM 10 Bolt C-Clip (7.5")	3.23 +
911A342	Detroit Truetrac Toyota 7.5" IFS	All
911A415	Detroit Truetrac GM 10 Bolt C-Clip (7.5")	3.08 -
911A445	Detroit Truetrac Toyota 7.5" IFS	All
911A565	Detroit Truetrac Toyota 7.5" Legend Race Series / Celica	All
911A644	Detroit Truetrac Toyota 7.5"	All
912A316	Detroit Truetrac Ford 7.5"	All
912A317	Detroit Truetrac GM 10 Bolt (7.5" / 7.6")	3.23 +
912A383	Detroit Truetrac Rover Type	3.54
912A407	Detroit Truetrac Rover Type	3.54
912A549	Detroit Truetrac AMC 20 (8.875")	2.73 -
912A553	Detroit Truetrac Chrysler C-Clip (8.375")	All
912A556	Detroit Truetrac GM 10 Bolt C-Clip (8.5")	2.73 +
912A557	Detroit Truetrac GM 10 Bolt (8.5")	2.73 +
912A562	Detroit Truetrac Ford 8.8" C-Clip	All
912A563	Detroit Truetrac Ford 8.8" IFS	All
912A569	Detroit Truetrac Dana 35	3.54 +
912A573	Detroit Truetrac AMC 20 (8.875")	2.73 -
912A579	Detroit Truetrac AMC 20 (8.875")	3.08 +
912A585	Detroit Truetrac Dana 30	All
912A587	Detroit Truetrac Ford 9 Inch	3.25 +
912A588	Detroit Truetrac Dana 30 / Volvo	3.73 +
912A593	Detroit Truetrac Salisbury Defender	4.10 -
912A616	Detroit Truetrac Ford 8 Inch	3.25 +
912A642	Detroit Truetrac GTO / Monaro	All
912A654	Detroit Truetrac GM 10 Bolt C-Clip (8.0")	All
913A315	Detroit Truetrac GM 12 Bolt C-Clip (8.875")	3.73 +
913A368	Detroit Truetrac Chrysler C-Clip (9.25")	2.76 +
913A389	Detroit Truetrac Dana 60, 60-3, 60HD, 60M, M60-3R	4.10 -
913A390	Detroit Truetrac Dana 60, 60-3, 60HD, 60M, M60-3R	4.56 +
913A477	Detroit Truetrac Ford 9.75"	All
913A481	Detroit Truetrac GM 10 Bolt C-Clip (8.5" / 8.6")	2.73 +
913A541	Detroit Truetrac Toyota 8.4" Tacoma, Tundra, T-100	3.54 +
913A555	Detroit Truetrac GM 12 Bolt (8.875")	3.90 -
913A561	Detroit Truetrac Ford 8.8" C-Clip	All
913A572	Detroit Truetrac Chrysler 8.75"	4.56 -
913A582	Detroit Truetrac Toyota M226	All
913A586	Detroit Truetrac Ford 9 Inch	3.25 +
913A589	Detroit Truetrac Dana 44	3.73 -
913A590	Detroit Truetrac Dana 44	3.92 +
913A591	Detroit Truetrac Dana 44, M-44-IF, IFHD	3.73 -
913A592	Detroit Truetrac Dana 44, M-44-IF, IFHD	3.92 +
913A609	Detroit Truetrac Toyota 8" (2 pinion)	All
913A610	Detroit Truetrac Toyota 8" (4 pinion)	All
913A611	Detroit Truetrac Toyota 8" (2 pinion)	All
913A612	Detroit Truetrac Toyota 8" (4 pinion)	All
913A614	Detroit Truetrac Dana 44	All
914A538	Detroit Truetrac GM 14 Bolt C-Clip (9.5")	All
914A575	Detroit Truetrac GM 12 Bolt (8.875")	4.10 +
914A576	Detroit Truetrac GM 12 Bolt (8.875")	3.90 -
914A583	Detroit Truetrac Chrysler 8.75"	4.56 -
914A643	Detroit Truetrac AAM 9.5"	All
915A385	Detroit Truetrac Dana 60, 60HD	4.10 -
915A386	Detroit Truetrac Dana 60, 60HD	4.56 +
915A387	Detroit Truetrac Dana 60, 60HD	4.10 -
915A388	Detroit Truetrac Dana 60, 60HD	4.56 +
915A450	Detroit Truetrac Dana 80	4.10 +
915A550	Detroit Truetrac Ford 10.25" / 10.5" Sterling	All
915A567	Detroit Truetrac Dana 80	3.73 -
915A568	Detroit Truetrac AAM 11.5"	All
916A427	Detroit Truetrac Dana 80	4.10 +
916A566	Detroit Truetrac Dana 80	3.73 -

Features

Torque biasing helical gear design
Smooth, quiet, and automatic operation
Works in front or real axle applications
Maintenance free limited-slip locker
Heavy duty construction

Related Products and Accessories:

Starting At: $469.95

Your Price: $779.95

Your Price: $996.00

Starting At: $499.95

Share your knowledge of this product with other customers... Be the first to write a review

	Sparco Pro 2000 Seats $759.95
	Pit Bull Rocker Tires $307.71
	ORI DP3 Struts $789.95
	Pit Bull Maddog Tires $373.83
	Super Swamper LTB Tires $254.95
	KMC Enduro Beadlock Wheels $289.95
	Corbeau Baja JP Jeep Seats $209.95
	Corbeau Forza Seats $249.95
	Camburg Long Travel Suspension Systems $2,399.95

FilthyMotorsports.com

Off-Road Parts

Helpful Links

Company Information

My Account

Customer Service

Resources