Ok so now the latest project and what brought me to posting this tonight. I need help. Im doing a disc brake swap on the rear.
My buddy had a ZJ that he wrecked.
Yes it has a 4.0 that will very likely find its way into my jeep sometime.
In the accident (everyone was fine) the rear 35 was bent and ruined. I swapped in a 44a and with a little heating and bending of brackets got it back up and moving again. Now i have this disced 35 sitting around. So i pulled off all the brake makings on it and have had them sitting around for a while.
Tonight i went to NAPA and bought 2 new drums, all new shoes, and all new springs and whatnot for inside the drums of mine. It set me back 170 and then i got to thinking how much cheaper and nicer it would be if i just swapped in the discs. So saturday all the drum stuff is going back.
I tore down my drums (PITA) and got them down to the shafts. I forgot i had to take the c-clips out so i drained the diff (it needed it anyway) and went to work there. (on a quick sidenote: am i the only one who finds the smell of used gear oil very unpleasant? and also the fact that you have to use a 1/4 12 pt wrench to slide out the dowel in the spiders just to pull the shaft is really obnoxious, i would hate to have to do that on the trail.)
So tear down your drums drain the diff and get a 12 pt 1/4 wrench (ratcheting preferred) Take out the retaining bolt and slide the dowel out. Push your shaft in towards the center of the diff and then pull the c-clip. Note: put the dowel back in the spiders once you get the shafts out to make your life much easier. It will keep the spiders all together.
You should be left with this once you pull the shafts.
unbolt the brake line and unhook the e-brake. The unbolt the bracket from the housing and chuck it (or save it). The disc bracket should bolt right back on in place. Now the bolt on takes a break and we start making stuff up. Get a hose (of i guess if you saved the hoses of the disc axle) that will connect to your brakeline just like the front brakes.
Now as for the e-brake im kind of stumped. the drums a little cylinder on the end of them and the disc brakes use a loop. I'm not quite sure how to work my way around this. I could use the cables out of the ZJ but i would think theyd be much longer. Or... I could cut the bracket that the YJ cables attach to and weld it onto the arm of the disc's e-brake so i can use my stock cables. Thoughts anyone? I've got a nice long weekend to work on this but sadly auto stores wont be open tomorrow because i still need some new hardline and hoses for the brakes before i can even try it out.
One nice accomplishment tonight was the free replacement of a cross threaded lug. One of the shafts in the ZJ's 35 had sheared so i pressed the studs out of it and replaced the buggered up one in mine.
ZJ studs are longer which actually may be a necessity. The rotors are thicker than the drum so when i go to put my tires back on a may not have enough stud to bite or get a good torque so i may have to replace all of them.
I also have the right hand ZJ shaft laying around and its still good. It feels heavier than my YJ's but i believe theyre the same length so maybe ill just use that one but if someone can confirm or tell me otherwise that'd be nice.
If anyone has any ideas on the e-brake situation please post up.