93 ZJ Rotor and Bearing Replacement

I have new rotors and hubs and bearings for my front 2 tires. I plan on replacing them today but I'm posting this so I have everything ready when I get home. My biggest concern is how to remove the brake caliper because I'm not sure if it's a 13 mm bolt or a star socket and I don't have any Star socket sets and don't have money today to buy any so I'm hoping that it's the 13 mm bolts. My other concern is the removal of the bearing and hub, what size bolts are these? Are they hard to remove and is the bearing hard to replace?

 

I think the caliper bolt is a regular hexhead, can't recall the size right off.
The hub however does have a 12 point head on it, 3 bolts from the back side of the spindle.
You will have to separate the hub from the axle shaft which takes a large socket and you may be able to tap the end of the axle shaft to get it to separate from the hub.
I have had hubs seize into the spindle and actually pulled the hubs apart. Had to beat the snot out of them to get them out. Clean up the mating surface of the spindle before putting the new hub in.

 

Good to hear there's no star heads LOL the biggest socket I have is a 30 mm... If I have to put off the bearings until Friday, that's fine and I'll just install the new brakes and rotors today... Slowly but surely I'm trying to get her fixed up.

 

The Spindle nut on my 93 XJ is a 36mm... just went and looked it up. Likely the same on your ZJ. And 175 lbs-ft is the torque spec.

 

Nice, thanks @Prerunner1982

 

As another precaution, how can I check the wear and tear on the CV ends of the wheels on the front axle? How can I tell if they'll need replaced or not?

 

I'm sure if you had replacements on hand that you can feel the difference in looseness especially with age+mileage of the jeep. Generally if the boots are not torn they should be okay but let's hear from others opinion. Old worn boots could start tearing from age or rough handling right after assembling all the front end parts lol

 

Here are mine... Driver side then passenger side

 

The driverside is definitely in need of being replaced, passenger side may be ok but I would look around that first rib where all the crud is...it is likely torn in there and if you are already doing the hub it would be a good time to replace them both..... if you can, I've been there before.

 

Clean and inspect boot(s) as the crud may be indicative of boot damage with the lube leaking out.

 

The crud in the first rib you guys are talking about is on the passenger side?

 

Is that a crack and splits on the driver side?

 

And is this what I'll need to replace it ?

 

Yes

Yes sir.

 

Is this everything I need to replace the back brakes ?

 

Measure your drums, they could be 9" or 10". But yeah that looks like a pretty complete kit.

 

9's are smooth around and the 10's have cooling fins

 

Why are you replacing the rear drums? Are they out of spec? Just trying to stretch your $$$

 

Sure looks like some crack...

 

Here's driver's side...
https://youtu.be/W0POgyonu74