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Unread 03-09-2009, 12:15 PM   #1
landerark
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Newbie - CJ5 Disc Brakes

I've just recently purchased a 1964 4x4 CJ5 that is all original. I am wanting to look into installing disc brakes. I'm not a rock crawler and plan on using the existing axles. Any help on where to start and what to look for? What does something like that cost? Any help would be great.

thanks!

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Unread 03-09-2009, 12:35 PM   #2
certifiablejeep
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Just to let you know, anything is possible, it only takes time and money.

As for the actual procedure for a 64, you can do a search here, there is some information over on earlycj5.com, or better yet, start with what axle you have (stock vs. swapped in) and go from there to see what is possible.

If it is stock, dana 25? I think that is what was used. They will tell you what can be used, or if you wanted you can upgrade possibly to a dana 30? Lots of possibilities.

cb
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Unread 03-09-2009, 05:15 PM   #3
MikeMCJ
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http://www.earlycj5.com/tech/brakes/...conversion.php

this what you're looking for?
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Unread 03-10-2009, 07:04 AM   #4
landerark
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Thank you for the feedback, I really appreciate it. If I was to find someone to do the work, would you suggest finding a shop that does custom work, a jeep specialist, etc? Thanks.
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Unread 03-10-2009, 08:08 AM   #5
CCJ
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I'm bumpin this back up as I too may soon have a CJ5 myself.
My concern (which noone addressed) is buying a kit that is made for the CJ5 and spending the $300 dollars on a disc conversion that isn't trasferable to another axle. As I'm sure the stock axle on these CJ5's with the 4cyl engine is prone to breaking... Any CJ5 owners out there that stand by a durable brake kit?
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Unread 03-10-2009, 10:55 AM   #6
Nickmil
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That disc brake conversion can be transferred to a drum brake 30 so no problem there. R&P makes a disc conversion and can fill you in on the details as well. Contact Rich or Paul at 503-557-8911.
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Unread 03-10-2009, 12:22 PM   #7
HackFabrication
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PM molsenice, he recently did a 64 and added front disc brake, iirc.
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Unread 03-10-2009, 09:56 PM   #8
CCJ
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Thanks guys for the help. Anyone else care to chime in? I plan on getting beffier axles and am worried about spending the money on a disc conversion that isn't transferable to another beefier axle, that I plan on getting 2-3 yrs down the road.
Does anyone by chance know of any axles that swap easily into CJ5's? Be it D-30's, Ford 9", D-60, ect...?
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Unread 03-11-2009, 06:44 AM   #9
Dad03
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As far as transfering I think its all about rotor size (diameter) and making a bracket to mount the calipers on. I don't see where it would be a huge ordeal to do if needed as long as you can keep the same size rotors.
Obviously a 5 on 5.5 pattern rotor is not going to fit a 6 lug hub. You need to be able to find rotors.
I just did a rear disc braket conversion on my 75 CJ5.
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Unread 03-11-2009, 11:54 AM   #10
landerark
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Does it matter what year of Jeep the axles came out of if I decided to upgrade to disc brakes that way? Would I need to look for a year as close to my 64 as possible or would say a 98 set of axles do?
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Unread 03-11-2009, 12:48 PM   #11
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Quote:
Originally Posted by HackFabrication View Post
PM molsenice, he recently did a 64 and added front disc brake, iirc.

The Dana 27 axle will be fine with disk brakes and mild wheeling, the upgrade is easy. I got the Caliper brackets from a 78 cj7 and used the calipers as cores for rebuilts, ordered new rotors.

same set up works on the D30 as I did it a second time on the current build.

As for the dust sheild - I ditched it on both builds as I feel it just is a dirt / mud collector.

can't find pics of the D27 converted ( I can snap one when i get out in to the parking lot if ya want) - but other than the closed knuckel, they look similar to the D30

MikeMCJ posted this - but it is the process. http://www.earlycj5.com/tech/brakes/...conversion.php

NAPA has Caliper kits that come with pads and hardware and the 1 1/8 in rotors that are necessary. The longer studs for the lugs can be grabbed off the donor, now is a good time to swap out the bolts for studs holding on the caliper bracket. Makes for a stronger install.
D30 converted wating for the calipers
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Unread 03-11-2009, 12:52 PM   #12
landerark
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This is the site that I found that sells the entire conversion kit. It's expensive, but thinking it may be worth it as opposed to spending the time running down parts.

http://www.naors.net/brake_kit.htm

I'm going to do a little more research to see if I can find the kit cheaper. Or take the information off of the website that was mentioned on earlycj5.com and track down the parts. I do have access to several auto salvages.

Any suggestions?
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Unread 03-11-2009, 12:58 PM   #13
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All of the 25, 27, and 44 closed knuckle front axles use the same knuckle/spindle. The spindle pattern is the same as the Dana 30. I put discs on a 25 using rotors/hubs and calipers from an 80 CJ (Dana 30) and just machined out the 2 bolt adapter plates. I recall seeing the plates are now available from Reid Racing. If you are looking to keep the 25, you can improve the tie rod arrangement by finding a 2 hole right side knuckle (I used one from a 63 wagon). A 25 can live if you have a light right foot and don't get carried away with the tires.
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Unread 03-11-2009, 01:19 PM   #14
landerark
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I'm not going to go bigger than a 31x10.50x15. My main reason for the jeep is for joy riding, the lake and dirt roading. As far as the right foot, with the 4 cyl 3 speed, I can stomp on this beast all I want and she ain't going anywhere.
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Unread 03-11-2009, 01:38 PM   #15
molsenice
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Quote:
Any suggestions?
If you can aford it - buy the kit - parts come clean ready for paint. No mess no fuss no cleaning.

Personally, I do ok for a living but buildin jeeps is just for my personal entertainment. tracking down stuff free or cheap is part of the entertainmet for me.
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