1963-1973 Front Disc Brake Conversion Kit

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Your Price: $629.00

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Part Number:09-4582

Measure Existing lines, subtract 4-5" and select the closest length below

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Our Front Disc Brake conversion kit is a complete kit to convert your front drum brakes to disc brakes! No more relying on outdated and failure-prone front drum brakes. Step into the modern age and stop your FSJ in a much shorter distance with our disc brake upgrade kit! This conversion is a must for those with larger tires or lift kits!

Kit includes new hub and thick rotor, caliper brackets, rebuilt calipers with pads and banjo bolts, plus new bearings, races and seals. Brake Lines are additional (optional) and can be ordered via the pull-down menu. The brake lines in this kit are 3/8", and you may have to adapt them to your application depending on fitting size and type at the existing hardline.

NOTE: On some 1971 and earlier rigs you must change to 1972-later wheels, aftermarket wheels, or grind the caliper to clear early model wheel rivets.

**Note: picture shown is representative, and is for illustrative purposes only.

For Replacement Parts, click here: https://www.bjsoffroad.com/1963-73-Disc-Brake-Conversion-Replacement-Parts_c_298.html

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Q: I have a 1966 Gladiator which, according to the note, will require grinding the caliper to make it fit. Do the instructions include guidance on how to properly do that, or is it possible to have them ground prior to shipping? Thanks!

Asked by: Dennis Napier - 9/24/2016

A: It is covered in the instructions, but it is very basic. Simply grind off a little and slide the wheel on, test fist and rotate, and if it still makes contact, grind off a little more.

Was this answer helpful? 8 of 8 Customer(s) found this Answer helpful.

Answer provided by: Ryan (9/26/2016)

Q: Does this disc brake conversion fit a 1970 j4000 closed knuckle Dana 44 front axel?

Asked by: Jodofab - 10/21/2015

A: Yes, it does fit a 1970 J4000 Closed Knuckle Dana 44

Was this answer helpful? 7 of 7 Customer(s) found this Answer helpful.

Answer provided by: Brent (10/21/2015)

Q: does this come with instructions,,how long should it take>>??

Asked by: mike abbate - 4/20/2016

A: Yes, these include full installation instructions. You can do this conversion in your garage using basic hand tools, and should take 4-8 hours depending on your skill level, tools, etc.

Was this answer helpful? 4 of 4 Customer(s) found this Answer helpful.

Answer provided by: Ryan (4/22/2016)

Q: When I want to install this disc brake conversion kit, do I need also change the proportion valve, the mastercylinder and the brake booster? I have a '73 wagoneer.

Asked by: Erwin - 4/25/2016

A: You don't have to change those items, but they are great upgrades to consider.

Was this answer helpful? 3 of 3 Customer(s) found this Answer helpful.

Answer provided by: Ryan (4/25/2016)

Q: I was wondering about the consumable parts like the rotors and pads and even the seals? I tend to drive the wheels off this thing. And was wondering when it comes time or a part leaks or fails where would I get replacement parts? Can I go to a local auto parts store and buy them? Or do I have to contact you guys and wait for the new parts? I don't want to be stuck away from home some where and can't get parts. I appreciate you time and thank you

Asked by: Justin - 2/2/2019

A: This kit uses various off the shelf parts.

Was this answer helpful? 3 of 7 Customer(s) found this Answer helpful.

Answer provided by: Ryan (2/4/2019)

Q: What is the lug bolt pattern? My J4600 has a 5"x5.5"

Asked by: GW - 1/13/2017

A: That is the same bolt pattern as this kit.

Was this answer helpful? 2 of 2 Customer(s) found this Answer helpful.

Answer provided by: Ryan (1/16/2017)

Q: When selecting options, are the lines the hard lines or rubber lines with stainless upgrade options? If you dont select any lines will it come with the standard rubber hoses?

Asked by: Adolfo - 12/16/2018

A: These are the flexible stainless lines that go from the hardline connection at the frame down to the caliper. If you don't select a line size, it won't come with any lines.

Was this answer helpful? 2 of 3 Customer(s) found this Answer helpful.

Answer provided by: Ryan (12/17/2018)

Q: Do I use my stock J-2000 Dana 44 spindles?

Asked by: mike - 9/17/2016

A: Yes, you will use your original spindles. The kit includes everything you need to install the kit.

Was this answer helpful? 1 of 1 Customer(s) found this Answer helpful.

Answer provided by: Ryan (9/19/2016)

Q: What type of brake fluid is recommended?

Asked by: Ron - 12/19/2016

A: Dot 3 or equivalent

Was this answer helpful? 1 of 1 Customer(s) found this Answer helpful.

Answer provided by: Ryan (12/20/2016)