Novak Conversions Jeep Wrangler TJ engine mounts

Disk brake conversion kits

J

Jim Byrne

TJ Enthusiast
Original poster
Joined
Dec 3, 2017
Messages
179
Location
Kingman, AZ, United States
What is the best & most complete rear disk brake conversion kit?
What problems has everyone had installing them or finding parts not included?
Mine will go on a 2004 TJ with a Dana 35,
 
Two months ago I installed the BMB disc brake conversion kit on my 01 TJ 4.0L w/Dana 35
The kit includes everything you need although i purchased 3/8" longer wheel studs to accomodate the thickness between the drums and discs.
The entire installation was about 3.5-4 hours taking our time.

Black Majic Brakes
 
Jim Byrne said:
What is the best & most complete rear disk brake conversion kit?
What problems has everyone had installing them or finding parts not included?
Mine will go on a 2004 TJ with a Dana 35,
Click to expand...
You may already know this but don't convert your rear drums to disk brakes if you're looking for better braking performance. Rear disks will be easier to maintain but they won't improve your braking.
 
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If I was going to get a disc conversion, I would get it from @mrblaine (Black Magic Brakes) without question.

What Jerry said is true though. The only thing you stand to gain from going to rear discs is easier maintenance. As far as increased performance goes, you won't gain any whatsoever from switching to rear discs.
 
Jerry Bransford said:
You may already know this but don't convert your rear drums to disk brakes if you're looking for better braking performance. Rear disks will be easier to maintain but they won't improve your braking.
Click to expand...
The purpose, if I do it, is to retain my axel if I break one on the trail. I don't need any more braking ability. A c-clip eliminator kit is another choice--I don't want to go to a d-44 due to the cost.
 
While the brakes may retain the axle for a short distance, like to let others around you, it shouldn't be thought of as a way to drive even back to camp.
 
I installed the Crown conversion kit, it's basically all ZJ parts. The kit was complete and installed very easily. I saved a little by buying the kit without E-brake cable and then sourcing them on my own. Very pleased with it so far.
 
SvtLdr said:
I installed the Crown conversion kit, it's basically all ZJ parts. The kit was complete and installed very easily. I saved a little by buying the kit without E-brake cable and then sourcing them on my own. Very pleased with it so far.
Click to expand...

How did you attach the brake hoses? Where's the plate bolt on the hoses?
 
birdrestorer said:
How did you attach the brake hoses? Where's the plate bolt on the hoses?
Click to expand...

If I understand your question correctly; you are asking where the brake hoses bolt.
They bolt to the factory control arms; the same as the factory hoses and the BMB conversion hoses.
I installed the BMB disc brake conversion kit 3.5 years and and the brake hose installations were easy; just make sure you correctly double flair the metal brake lines to so there are no leaks.
 
Last edited:
birdrestorer said:
Did you have a low pedal ir have to change the master cylinder?
Click to expand...

I didn’t have a low pedal nor did I need to replace the master cylinder.
Just ensure you perform a good flush of the brake fluid thru the system, ensure the caliper brake bleeders are at the top and do a good job of bleeding the system.
 
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birdrestorer said:
How did you attach the brake hoses? Where's the plate bolt on the hoses?
Click to expand...

I attached the hose to the lower portion of the coil spring bucket. So the steel line runs around the back of the coil, then connects to the rubber house near the front of the spring. I may have swapped the driver and passenger side hoses... not 100% sure on that. It's been a few years.
Here's the rear view of the drivers side.
20241110_163107.jpg


Front view, drivers side
20241110_163216.jpg


Top view
20241110_163844.jpg


Sorry about the mud. Lemme know if you need anything else.
 
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