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  Store > Lockers and Gears >

  OX Locker
OX Locker
 
Additional Images


This product has moved.


For OX Lockers please visit the
Filthy Motorsports Drivetrain Shop at
DrivetrainShop.com




Direct Link: DrivetrainShop.com/OX
Starting At: $799.95

Availability: Usually Ships in 24 to 48 Hours
Product Code: OX-LOCKER
Click Here for
OX Lockers

Description Part Numbers
 

OX Lockers are selectable differential lockers that feature a unique cable shifting mechanism for durable, reliable, safe, and easy locker engagement and disengagement. Each locker is made in the USA from forged 8620 heat treated steel (the same material used to make ring and pinion gears) and encases 4 spider gears for maximum strength and durability. The locking ring and locking gear used in the OX Locker feature back-cut teeth for superior locking force and accidental locker disengagement prevention. If you're looking for a heavy duty, long lasting, selectable locker that is easy to install, then the OX Locker is the right choice for you.

Heavy Duty Differential Cover Included
While many electric and pneumatic lockers require a hole to be drilled through the axle housing for the wire or air line, the OX Locker comes with a heavy duty differential cover that houses the locking mechanism and comes pre-drilled and threaded for the shifting cable. Not only does this make the locker easier to install, it means that you get a free diff cover upgrade with every purchase!

Mechanical, Air, or Electric Shifting
Unlike any other selectable locker on the market today, the OX locker allows you to engage or disengage your locker manually or by the flip of a switch. Each OX Locker comes standard with a manual shifter that allows for easy installation and simple operation. An electric conversion kit is available to replace the manual shifter with an electric actuator for shifting via a dash mounted switch. Another alternative is the air activated shifting mechanism that replaces the shifting cable with a solenoid, air line, and pneumatic switch powered by an on-board compressor or small air tank. (The air solenoid uses so little air to engage and disengage the locker that a small air tank will typically last an entire season of off-roading).

Emergency Drive-Away Lock
Another unique feature of the OX Locker is the ability to mechanically engage the locker by installing an OX Drive-Away Lock (sold separately and highly recommended by Filthy Motorsports) that replaces the shifting cable and permanently engages the locking mechanism. The lock is easy to install and is perfect for trail repairs in the event that the shifting cable breaks or for situations where a locked differential is needed for extended periods of time.

Selecting the right OX Locker model is easy using the detailed locker application table below. All of the currently available OX Lockers are listed according to the vehicle(s) for which they are compatible. Simply find your vehicle in the list and locate the OX Locker 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, feel free to call or email us.



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

ApplicationAxleSplineRatioPN / Link

Custom and
High Performance
Applications
AMC 20 29 3.08 + OX A20-308-29
Dana 30 27 3.73 + OX D30-373-27
Dana 30 30 3.73 + OX D30-373-30
Dana 30 JK 30 All OX D30-JK
Dana 35 27 3.55 + OX D35-355-27
Dana 35 30 3.55 + OX D35-355-30
Dana 44 30 3.73 - OX D44-373-30
Dana 44 30 3.92 + OX D44-392-30
Dana 44 33 3.92 + OX D44-392-33
Dana 44 JK 30 All OX D44-JK-30
Dana 60 30 4.56 + OX D60-456-30
Dana 60 30 4.10 - OX D60-354-30
Dana 60 35 4.56 + OX D60-456-35
Dana 60 35 4.10 - OX D60-354-35
Ford 8.8 31 2.73 + OX F88-273-31

* JK model lockers are not compatible with Rubicon edition Jeeps.




Dodge OX Lockers
The following models of Ox Locker are available for Dodge vehicles:

Vehicle(s)AxleYearDescriptionSplineRatioPN / Link

100, 150, 200, 250,
A, B, D, W
Front All Dana 44 30 3.92 + OX D44-392-30
Front All Dana 44 30 3.73 - OX D44-373-30
Front All Dana 44 33 3.92 + OX D44-392-33
Front 75-93 Dana 60 30 4.56 + OX D60-456-30
Front 75-93 Dana 60 30 4.10 - OX D60-354-30
Front 72-82 Dana 60 HD 35 4.56 + OX D60-456-35
Front 72-82 Dana 60 HD 35 4.10 - OX D60-354-35
Front 88-95 Dana 60 HD 35 4.56 + OX D60-456-35
Front 88-95 Dana 60 HD 35 4.10 - OX D60-354-35
Rear 72-82 Dana 60 30 4.56 + OX D60-456-30
Rear 72-82 Dana 60 30 4.10 - OX D60-354-30
Rear 72-82 Dana 60 35 4.56 + OX D60-456-35
Rear 72-82 Dana 60 35 4.10 - OX D60-354-35
Rear 83-93 Dana 60 30 4.56 + OX D60-456-30
Rear 83-93 Dana 60 30 4.10 - OX D60-354-30
Rear 83-93 Dana 60 35 4.56 + OX D60-456-35
Rear 83-93 Dana 60 35 4.10 - OX D60-354-35

300, 350, 400,
B, C, M, W
Front 55 up Dana 60 30 4.56 + OX D60-456-30
Front 55 up Dana 60 30 4.10 - OX D60-354-30
Front 76-95 Dana 60 HD 35 4.56 + OX D60-456-35
Front 76-95 Dana 60 HD 35 4.10 - OX D60-354-35

Ram 1500 Front 94-03 Dana 44 30 3.92 + OX D44-392-30
Front 94-03 Dana 44 30 3.73 - OX D44-373-30
Front 94-03 Dana 44 33 3.92 + OX D44-392-33

Ram 2500, 3500 Front 94-02 Dana 60 30 4.56 + OX D60-456-30
Front 94-02 Dana 60 30 4.10 - OX D60-354-30
Front 94-02 Dana 60 35 4.56 + OX D60-456-35
Front 94-02 Dana 60 35 4.10 - OX D60-354-35

(a) Non-standard performance upgrade.




Ford OX Lockers
The following models of OX Locker are available for Ford vehicles:

Vehicle(s)AxleYearDescriptionSplineRatioPN / Link

F100, F-150 Trucks,
E100, E-150 Vans,
Bronco
Front To 82 Dana 44 30 3.92 + OX D44-392-30
Front To 82 Dana 44 30 3.73 - OX D44-373-30
Front To 82 Dana 44 33 3.92 + OX D44-392-33
Rear 77-79 Dana 44 30 3.92 + OX D44-392-30
Rear 77-79 Dana 44 30 3.73 - OX D44-373-30
Rear 77-79 Dana 44 33 3.92 + OX D44-392-33
Rear 83 up Ford 8.8 Inch 31 All OX F88-273-31

F-250 Truck,
E-250 Van,
Excursion
Front To 83 Dana 44 30 3.92 + OX D44-392-30
Front To 83 Dana 44 30 3.73 - OX D44-373-30
Front To 83 Dana 44 33 3.92 + OX D44-392-33
Front 00 up Dana 60, Full Float 35 4.56 + OX D60-456-35
Front 00 up Dana 60 Full Float 35 4.10 - OX D60-354-35
Front 97-98 Ford 8.8 Inch 31 All OX F88-273-31
Rear 75-84 Dana 60, Full Float 30 4.56 + OX D60-456-30
Rear 75-84 Dana 60, Full Float 30 4.10 - OX D60-354-30
Rear 95-96 Dana 60, Full Float 35 4.56 + OX D60-456-35
Rear 95-96 Dana 60, Full Float 35 4.10 - OX D60-354-35

F-350 Truck,
E-350 Van
Front 86 up Dana 60, Full Float 35 4.56 + OX D60-456-35
Front 86 up Dana 60 Full Float 35 4.10 - OX D60-354-35
Rear 00-01 Dana 60, Dually 35 4.56 + OX D60-456-35
Rear 00-01 Dana 60, Dually 35 4.10 - OX D60-354-35
Rear 88 up Dana 60, Full Float 35 4.56 + OX D60-456-35
Rear 88 up Dana 60, Full Float 35 4.10 - OX D60-354-35
Rear 73-79 Dana 60, Full Float 30 4.56 + OX D60-456-30
Rear 73-79 Dana 60, Full Float 30 4.10 - OX D60-354-30

F-450, F-550 Truck,
Super Duty Van (2wd),
F-350 Dually Truck
Front 97 up Dana 60, Full Float 35 4.56 + OXD 60-456-35
Front 97 up Dana 60 Full Float 35 4.10 - OXD 60-354-35

(a) Non-standard performance upgrade.




General Motors OX Lockers
The following models of Ox Locker are available for Chevy, GMC, and Hummer vehicles:

Vehicle(s)AxleYearDescriptionSplineRatioPN / Link

10 / 1500 Series,
C, G, K, P,
Blazer, Jimmy, Yukon,
Suburban, Van

Front To 80 Dana 44 30 3.92 + OX D44-392-30

20 / 2500 Series,
C, G, K, P, Cab Chassis,
Pickup, Suburban,
Rally, Sportvan
Front To 80 Dana 44 30 3.92 + OX D44-392-30
Front To 80 Dana 44 30 3.73 - OX D44-373-30
Front To 80 Dana 44 33 3.92 + OX D44-392-33
Rear 75-77 Dana 60 HD 35 4.56 + OX D60-456-35
Rear 75-77 Dana 60 HD 35 4.10 - OX D60-354-35
Rear To 74 Dana 60 30 4.56 + OX D60-456-30
Rear To 74 Dana 60 30 4.10 - OX D60-354-30

30 / 3500 Series,
C, K, G, P, RV,
Pickup, Suburban,
Rally, Sportvan
Front 77-90 Dana 60 HD 35 4.56 + OX D60-456-35
Front 77-90 Dana 60 HD 35 4.10 - OX D60-354-35
Rear 75-86 Dana 60 HD, Full Float 35 4.56 + OX D60-456-35
Rear 75-86 Dana 60 HD, Full Float 35 4.10 - OX D60-354-35

(a) Non-standard performance upgrade.




Jeep OX Lockers
The following models of Ox Locker are available for Jeep vehicles:

Vehicle(s)AxleYearDescriptionSplineRatioPN / Link

CJ5, CJ7, CJ8,
YJ, TJ Wrangler,
XJ Cherokee,
XJ Wagoneer,ZJ, WJ, Grand Cherokee
Front 71 up Dana 30 27 3.73 + OX D30-373-27
Front 71 up Dana 30 30 3.73 + OX D30-373-30
Rear 76-85 AMC 20 (8.875") 29 3.08 + OX A20-308-29
Rear 90 up Dana 35 (C-Clip) 27 3.55 + OX D35-355-27
Rear 90 up Dana 35 (C-Clip) 30 3.55 + OX D35-355-30
Rear 85-89 Dana 35 (Non C-Clip) 27 3.55 + OX D35-355-27
Rear 85-89 Dana 35 (Non C-Clip) 30 3.55 + OX D35-355-30
Rear 97 up Dana 44 (TJ Only) 30 3.92 + OX D44-392-30
Rear 97 up Dana 44 (TJ Only) 30 3.73 - OX D44-373-30
Rear 97 up Dana 44 (TJ Only) 33 3.92 + OX D44-392-33
Rear 87-89 Dana 44 (Comanche) 30 3.92 + OX D44-392-30
Rear 87-89 Dana 44 (Comanche) 30 3.73 - OX D44-373-30
Rear 87-89 Dana 44 (Comanche) 33 3.92 + OX D44-392-33
Rear 86-91 Dana 44 (XJ Metric Ton) 30 3.92 + OX D44-392-30
Rear 86-91 Dana 44 (XJ Metric Ton) 30 3.73 - OX D44-373-30
Rear 86-91 Dana 44 (XJ Metric Ton) 33 3.92 + OX D44-392-33
Rear 69-75 Dana 44-3R 30 3.92 + OX D44-392-30
Rear 69-75 Dana 44-3R 30 3.73 - OX D44-373-30
Rear 69-75 Dana 44-3R 33 3.92 + OX D44-392-33
Rear 1986 Dana 44-3R 30 3.92 + OX D44-392-30
Rear 1986 Dana 44-3R 30 3.73 - OX D44-373-30
Rear 1986 Dana 44-3R 33 3.92 + OX D44-392-33

JK Wrangler
(Non Rubicon)
Front 07 up Dana 30 27 3.73 + OX D30-373-27
Front 07 up Dana 30 30 3.73 + OX D30-373-30
Rear 07 up Dana 35 27 3.55 + OX D35-355-27
Rear 07 up Dana 35 30 3.55 + OX D35-355-30
Rear 07 up Dana 44 30 3.73 - OX D44-373-30

JK, Liberty,
AMC Cherokee,
Grand Wagoneer
Front 01 up Dana 30 27 3.73 + OX D30-373-27
Front 01 up Dana 30 30 3.73 + OX D30-373-30
Front 71-73 Dana 30 27 3.73 + OX D30-373-27
Front 71-73 Dana 30 30 3.73 + OX D30-373-30
Front 1986 Dana M44-1F 30 3.92 + OX D44-392-30
Front 1986 Dana M44-1F 30 3.73 - OX D44-373-30
Front 1986 Dana M44-1F 33 3.92 + OX D44-392-33
Rear 80-86 AMC 20 (8.875") 29 3.08 + OX A20-308-29
Rear 86-92 Dana 44 30 3.92 + OX D44-392-30
Rear 86-92 Dana 44 30 3.73 - OX D44-373-30
Rear 86-92 Dana 44 33 3.92 + OX D44-392-33
Rear 69-79 Dana 44-3R 30 3.92 + OX D44-392-30
Rear 69-79 Dana 44-3R 30 3.73 - OX D44-373-30
Rear 69-79 Dana 44-3R 33 3.92 + OX D44-392-33

J10, Light Truck,
FC150, 170, Honcho
Front 71-88 Dana M44-1F 30 3.92 + OX D44-392-30
Front 71-88 Dana M44-1F 30 3.73 - OX D44-373-30
Front 71-88 Dana M44-1F 33 3.92 + OX D44-392-33
Rear 80-88 AMC 20 (8.875") 29 3.08 + OX A20-308-29
Rear 69-79 Dana M44-3R 30 3.92 + OX D44-392-30
Rear 69-79 Dana M44-3R 30 3.73 - OX D44-373-30
Rear 69-79 Dana M44-3R 33 3.92 + OX D44-392-33

J20, Medium Truck,
J30, Heavy Truck
Front 70-88 Dana M44-1F 30 3.92 + OX D44-392-30
Front 70-88 Dana M44-1F 30 3.73 - OX D44-373-30
Front 70-88 Dana M44-1F 33 3.92 + OX D44-392-33
Rear 74-88 Dana M60-3R 30 4.56 + OX D60-456-30
Rear 74-88 Dana M60-3R 30 4.10 - OX D60-354-30
Rear 69-73 Dana M60-2R 35 4.56 + OX D60-456-35
Rear 69-73 Dana M60-2R 35 4.10 - OX D60-354-35

(a) Non-standard performance upgrade.




Mazda OX Lockers
The following models of Ox Locker are available for Mazda vehicles:

Vehicle(s)AxleYearDescriptionSplineRatioPN / Link

Navajo, B4000, Pickup
(US Models)
Rear 90-94 Ford 8.8 Inch (C-Clip) 31 All OX F88-273-31
Rear 1993 Ford 8.8 Inch (Non C-Clip) 31 All OX F88-273-31

(b) In many applications several differentials and axle shaft variants were used.
Verify differential and spline count prior to ordering.



OX Locker images are © Copyright OX-USA, used with permission.
Additional images and product descriptions are © Copyright Filthy Motorsports, LLC.

Features
  • 100% mechanical cable-and-shifter design
  • Heavy duty steel diff cover included
  • Locker is made of 8620 steel (same material as ring and pinion gears)
  • No cast parts, everything is made from forged and heat treated steel
  • 4 spider gear design for maximum strength
  • Back-cut gear tooth locking ring and locking gear
  • Optional air and electric actuation systems
  • Made in the USA

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