big66440 Posted September 23, 2016 Posted September 23, 2016 Hey guys I was wondering about the famous WJ brake conversion on my 2WD Comanche. I'm not interested in the crossover steering, just the brakes. I was wondering if there was a hub assembly that could be used to retain the 5x4.5 wheel bolt pattern? as well as any info on actually using 15" wheels with the Akebono brake calipers? I'm running the factory 9 slot steel wheel and would like to keep them if possible. Also will I still have to upgrade the booster and master cylinder combo? I already have the 96 XJ dual diaphragm set up. As always thank you in advance all for the help.
Rockfrog Posted September 24, 2016 Posted September 24, 2016 My 2000 XJ runs 15x7 wheels, 35x12.50's and Teeves calipers. Ran stock steering for a week before parts came in. It bolts up. And D30 hub bolts to the knuckle fine, 1/4" spacers are needed for ujoint centering. Not an issue for 2wd. You're on your own for rotor spacing though (if you add the 1/4" spacer WJ and Explorer S/T rotors can be used). You may need to play with caliper spacing depending on hub choice. Not sure if stock wheels will work or not, it gets pretty tight. Sent from my SGH-I337M using Tapatalk
big66440 Posted September 27, 2016 Author Posted September 27, 2016 More than likely I'll be using Spidertrax spacers/adapters to bolt on my factory wheels. I personally don't like the idea of running re drilled rotors. Do you guys have an idea if the stub shaft that is installed in the 2WD models is really necessary ? Most of the WJ's I've seen at the junkyard are 4WD, thanks.
Rockfrog Posted September 28, 2016 Posted September 28, 2016 Yes the stub shafts are need to put pre-load on the bearings. Otherwise the hub will grenade in short time. Sent from my SGH-I337M using Tapatalk
IrnGynt Posted September 28, 2016 Posted September 28, 2016 Do you guys have an idea if the stub shaft that is installed in the 2WD models is really necessary ? Most of the WJ's I've seen at the junkyard are 4WD, thanks. Good luck finding stub shafts. I've been searching as well. Another option is to cut the ears off a 4wd shaft and use it.
Rockfrog Posted September 29, 2016 Posted September 29, 2016 Leave the ears on, they don't interfere with anything, and make it even easier to separate at hub change time (pipe through ears). I guess that makes my 2000 2wd stubs worth something then? When I finally convert to 4wd I'll toss them up. Sent from my SGH-I337M using Tapatalk
big66440 Posted September 29, 2016 Author Posted September 29, 2016 Good to know the 4WD stubs will be OK to use. Here's where I'm at on this upgrade- WJ Knuckles WJ Hubs WJ Rotors WJ Stub Shafts WJ Lower Ball joints Spidertrax 5x5 to 5x4.5 adapters does this seem right?
Rockfrog Posted September 30, 2016 Posted September 30, 2016 Should work fine on a 2wd. Don't forget calipers, I'm not one to trust used calipers. WJ stubs will be from a CV shaft, or use a YJ, MJ, TJ, ZJ, XJ stub .... Splines and dimensions are apparently the same. Sent from my SGH-I337M using Tapatalk
big66440 Posted September 30, 2016 Author Posted September 30, 2016 Oops you're right I forgot to list the calipers and corresponding caliper brackets. I will try to verify the stub shaft interchangeability when I get a chance.
big66440 Posted October 5, 2016 Author Posted October 5, 2016 Do you know if I will also need to install the WJ booster and MC? I already have the dual diaphragm 96 XJ one installed.
Rockfrog Posted October 7, 2016 Posted October 7, 2016 My 2000 XJ has WJ knuckles and brakes, stock master/booster and prop valve still. New calipers will come with the mounting brackets. Sent from my SGH-I337M using Tapatalk
MeanLemons Posted October 12, 2016 Posted October 12, 2016 U can use 2000 and up XJ hubs or tj hubs. They are the same and that's what people use in WJ steering swaps on XJ and tj
75sv1 Posted October 12, 2016 Posted October 12, 2016 As mentioned the late XJ and TJ hubs space things about right. Also, look at 07-08 Dodge Nitro rotors. About 1/16 or so less on diameter than the WJ rotors. I haven't installed my stuff yet. Also, someone did a Dakota /Mustang on the early XJ/MJ spindles on one of the Jeep Forums.
Rockfrog Posted October 15, 2016 Posted October 15, 2016 Nitro rotors are just over 1/8" smaller diameter (0.131") but all other specs seem to match interesting find. At 302mm they are still a full 22mm (7/8") larger than the stock brakes. I think we may have a new winner with no drilling required. Sent from my SGH-I337M using Tapatalk
big66440 Posted October 26, 2016 Author Posted October 26, 2016 Sorry to keep dragging this on and for asking a dumb question but will I need a wheel alignment after swapping in the WJ stuff? I'm guessing the toe may be a little off ? thanks
Rockfrog Posted October 27, 2016 Posted October 27, 2016 Yeah, but if you are competent with a wrench it can be completed on flat ground with a tape measure, a carpenter square and some chalk. Sent from my SGH-I337M using Tapatalk
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