Hello all......Im trying to remove the brake caliper from my truck. The problem is, the bolts are not standard or metric. It feels like a 6 sided bolt, can anyone tell me for sure?
Thanks.

 

The caliper bolts have 12pt heards. They take (I think) a 13mm 12pt socket, but it may be 14mm.
If you have to buy one I'd get Snap-on, Matco, etc. I've split Craftsman sockets on them.

 

Definitely 12pt. I haven't had any problems with my Craftsman though. Easy to replace if it does break too.

 

thanks for the help. im thinking its 14mm

 

Easy, but a pain in the *** to have to stop working, clean up and drive to sears. I've gotten them off without them breaking, but newer Craftsman sockets aren't as good quality as the old stuff. For small high torque applications, like caliper bolts and head bolts, I use one of the high quality brands. This is from someone who's been using Craftsman for over 50 years, starting with my dad's when I was a kid.

 

9/16 12 pt box wrench

It is metric but I haven't had a 9/16 slip even though it's almost .3mm too big. I haven't had a box wrench crack either, but I've cracked plenty of sockets, esp. 12 pt.

 

Hard to get the correct torque on reassembly when using a box end though.

 

Torque? F'n tight usually works! LOL.
If 9/16" works then 14mm would be correct.

 

Tried a standard 9/16 but it kept slipping. going to pick up a 12 point tomorrow.

 

My 9/16" is 12" long so whatever I stand on the end of it, it's that many foot-pounds.

On a serious note, I just busted a drive flange bolt because my Craftsmen "digi" torque wrench gave up the ghost. I knew it was broken but was trying to use it anyway. Of course it didn't indicate the 68Nm or whatever it was, and I twisted a bolt off. Fortunately the broken shaft came right out, still wet with Loctite.

I used a box-end wrench to multiply the the torque measured by my inch-pound wrench on a bolt/nut in the other end, to finish the job and ordered a new wrench. I don't use a torque wrench enough to justify a really fancy load-cell type, but I like this one because it seems to be high-quality, was calibrated meticulously (certificate included), and it covers the gamut of Land Rover torque values. Oftentimes wrenches go up to 100 ft.lbs (and you'll need another one for the few higher torque nuts and bolts like the radius arms), or they go up to 200 or 250 ft. lbs in which case they're less accurate with the most common lower torque values. This one has a range up to 150 ft. lbs, which means it's pretty accurate down to 30 ft. lbs or 40Nm.