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.
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.
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?
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...?
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.
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
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.
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.
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.