earl*t Posted January 3, 2009 Share Posted January 3, 2009 I've been unsuccessfully searching for a simple, low buck swap that doesn't require welding on a bracket. Is there anything new to make a drum to disc conversion fitting said parameters? Link to comment Share on other sites More sharing options...
shelbyluvv Posted January 3, 2009 Share Posted January 3, 2009 Looky here http://www.stu-offroad.com/suspension/d44brake/bc-1.htm Link to comment Share on other sites More sharing options...
earl*t Posted January 3, 2009 Author Share Posted January 3, 2009 O.K. Forget simple and low buck. Has anyone done a JK Wrangler Rubicon Dana 44 axle swap into your comanche? Link to comment Share on other sites More sharing options...
500 MJ Posted January 3, 2009 Share Posted January 3, 2009 www.madxj.com did a write up on swapping discs onto an XJ 44. The discs and related parts came from a '98 Grand Cherokee. I did this swap on my MJ and it was very easy to do. The version of the website that is up won't let me give you a direct link to the thread... From the madxj home page click on the "Technical" side menu. Scroll down to find the article titled "XJ rear disc conversion using ZJ parts." It is a very thorough article. Link to comment Share on other sites More sharing options...
earl*t Posted January 3, 2009 Author Share Posted January 3, 2009 Thanks, I'll check it out. Link to comment Share on other sites More sharing options...
Sir Sam Posted January 4, 2009 Share Posted January 4, 2009 O.K. Forget simple and low buck. Has anyone done a JK Wrangler Rubicon Dana 44 axle swap into your comanche? Wider axle, different bolt pattern different flange type. it could be done, but would be best done in tandem with the front axle. Link to comment Share on other sites More sharing options...
pingpong Posted January 4, 2009 Share Posted January 4, 2009 I did this very swap. You will need to hve the ZJ backing plate and caliper mount redrilled to fit a XJ D44 pattern. You will also need to have the center hole enlarged about 1/16 to fit the seal through. What I did was I used the Alloy USA D44 chromo kit and had the retainer plate redrilled to fit my xj d44. This eliminated the need to have a spacer made. Link to comment Share on other sites More sharing options...
earl*t Posted January 5, 2009 Author Share Posted January 5, 2009 Who sells the Alloy USA chromo kit? Link to comment Share on other sites More sharing options...
1990 Pioneer 4x4 Posted January 6, 2009 Share Posted January 6, 2009 So if you do a drum to disc conversion, wouldn’t you need to upgrade the booster and master cylinder? Link to comment Share on other sites More sharing options...
Phoenix of Fury Posted January 6, 2009 Share Posted January 6, 2009 So if you do a drum to disc conversion, wouldn’t you need to upgrade the booster and master cylinder? My experience would tell me that you probably need a prop valve. I've got rear disks on a D44, also removed the height sensing valve. When I stomp on the gas, I can make the rears lock up way before the front, get it a little fishy on icy roads. Not sure if you don't remove the height sensing valve though. Link to comment Share on other sites More sharing options...
Pete M Posted January 6, 2009 Share Posted January 6, 2009 So if you do a drum to disc conversion, wouldn’t you need to upgrade the booster and master cylinder? No. But as Phoenix said, some guys will need to either swap to a front valve that's a proportioning valve (the factory unit up there that looks like a prop valve is just a junction box), or swap in an aftermarket adjustable prop valve (my preferred method). Link to comment Share on other sites More sharing options...
1990 Pioneer 4x4 Posted January 8, 2009 Share Posted January 8, 2009 So if you do a drum to disc conversion, wouldn’t you need to upgrade the booster and master cylinder? No. But as Phoenix said, some guys will need to either swap to a front valve that's a proportioning valve (the factory unit up there that looks like a prop valve is just a junction box), or swap in an aftermarket adjustable prop valve (my preferred method). Something like this? What exactly does it do and where does it go? Link to comment Share on other sites More sharing options...
jtdesigns Posted January 8, 2009 Share Posted January 8, 2009 So if you do a drum to disc conversion, wouldn’t you need to upgrade the booster and master cylinder? No. But as Phoenix said, some guys will need to either swap to a front valve that's a proportioning valve (the factory unit up there that looks like a prop valve is just a junction box), or swap in an aftermarket adjustable prop valve (my preferred method). Something like this? What exactly does it do and where does it go? That looks like a regulator with a pressure switch.. Link to comment Share on other sites More sharing options...
pingpong Posted January 8, 2009 Share Posted January 8, 2009 I just did this swap a few months back. Tha Alloy USA shafts are available from just about any parts dealer. I used 4wheel parts wholesalers. As for the prop valve. I all ready had a XJ prop valve so I went down to the j-yard and got the prop valve off of a ZJ and removed the spring, and then re-installed it in the xj one on the vehicle. The one on the left is from the ZJ. Here is what the TJ rubicon retainer plates redrilled should look like Link to comment Share on other sites More sharing options...
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