Dana 25 disc brake swap with dana 30 parts |
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Millennium falcon
Member Joined: 20 Sep. 2016 Location: Central PA Status: Offline Points: 1521 |
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Thanks oldtime! I assumed there were a few slight differences. Rick: yes there are definitely ways around it and more than one way to skin a cat. Haha! 🍻 lol…
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CaseyWillys
Member Joined: 29 Oct. 2022 Location: Casey, IL Status: Offline Points: 23 |
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I found two CJ front axles with disc brakes in the salvage yard. I have a 63 utility wagon with the dana 25 closed knuckle axle. I have original 15" x 5 1/2 welded wheels with Bendix brakes. I am thinking I will see if one of my wheels fit on these axles. One axle still had wheels mounted. The wheels were off the other axle, but I think the rotors are the narrow size.
Has anyone tried this with wheels like mine? Am I correct that the caliper bracket from the 7/8" rotor set up will NOT fit my dana 25?
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CDUB
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Millennium falcon
Member Joined: 20 Sep. 2016 Location: Central PA Status: Offline Points: 1521 |
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Correct. You need the 1” thick rotors. You can tell easily by looking at the caliper mount. The 7/8 mount is cast into the knuckle….the 1” mount is removable and has the same 6 bolt pattern at the Dana 25/27
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Millennium falcon
Member Joined: 20 Sep. 2016 Location: Central PA Status: Offline Points: 1521 |
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My dad came over the other day and we did this same swap to his otherwise completely stock jeep… we used this opportunity to do something I’ve always wanted to do. Brake testing. So we tested his jeep before and after the front disc conversion using Dana 30 parts. Then we put it up against my 2 Jeeps which have slightly different setups. Disclaimer… this video is purely for fun… I’m not suggesting that there’s anything wrong with drum brakes or that anyone has to make any personal decisions based on this video. I’m simply sharing my findings… a lot of people asked why I didn’t test a jeep with 11” drums… the answer is simple. I don’t have access to a jeep with 11” drums. If someone brings me one I’ll test it.
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LuzonRed47
Member Joined: 11 Apr. 2007 Location: Plymouth, MI Status: Offline Points: 842 |
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Seth, great job on the Disc-vs.-Drum brake test. Though uninstrumented, the test is quite telling about the effectiveness of even just front discs on a flatfender. I noticed some slight yaw during one of the jeep's braking moment, but the sum total is a win for disc brakes.
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CJ2A #140275 "Ziggie" (purchased new by my dad in 1947)
ACM #124334 CJ3A windshield, Warn Overdrive 1953 Strick M100 trailer Serial #18253 |
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Jeff J
Member Joined: 12 Mar. 2018 Location: USA Status: Offline Points: 441 |
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I enjoyed the video too. One of mine only has disc brakes on the front and it surprised me how well it stops on those when I figured it out. The lines to the rear drums were cut and sealed by a previous owner. I haven’t attempted to find out where the discs came from yet.
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