I can't find the right size allen wrench to remove the two bolts that hold the brake caliper. These are the two that have the little rubber sleeves around them. the 4x4explor.com Aussie locker install write-up says to remove them with a 1/2" socket, but they're working on a TJ. The other write-up I'm looking at makes no real mention of them but that's on a '91... Haynes implies that the caliper design is different in pre-1990 models (mine is an '87).
The picture caption says "Using an Allen wrench, unscrew the two caliper mounting pins".
They seem just a TINY bit too small for a 5/16th or 8mm. 1/4 and 6mm are both much too small. Maybe a 7mm might fit? If that even exists.
maybe they are torxs on a xj but on a yj they are 7mm allen head, I just went out an checked
1988 Jeep Wrangler, home made posi lock, team rush upgrade, motorcraft 2100 carb, warn m8000 winch, np231c front yoke, rc 2.5" lift, 1" lift shackles
Even my motorcycle has a square headlight(1984 Honda Saber)!!!
When I did my calipers they were the external style torx on mine and the PO buggered them up so bad I had to use a pipe wrench to get them off. The new calipers cam with new bolts thank god and they were 3/8 or 10mm I am not sure which. I have no idea what they came from the factory with.