Front Caliper bolts! advise

[Jonboywv12]

okay so im changing the brakes on my 02 f-350...
i got my back ones changed the front one i cannot seem to get the caliper bolts off the front on either side. i do not know if im going the wrong way or not. and a simple ratchet will not do it so i went to the impact gun. when i did that the impact will not take it off in forward or reverse...idk what to do and i need these things changed BAD...any advise would be great! thanks in advance.

[choupique108]

penetrating oil.. something like PB blaster or Kroil and let em sit for a lil while

[Jonboywv12]

and as for taking them off, are they threaded backwards or just put on normal like a regular bolt??

[ju015dd]

they are regular threads, what size rachet you using?

[Zaairman]

They're standard threaded bolts. You've gotta get creative to get them off. I'm sure this isn't OSHA approved, but whatever... On one side (I forget which), you can put a floor jack underneath the ratchet wrench and lift up, it'll break the bolt free and start spinning. On the other side (the side where to loosen it you can't lift the wrench with a jack), I'll hook up a ratchet strap to the wrench and break it loose with that.

[countryraised]

turn your wheel all the way, and do 1 side at a time with a breaker bar and pipe, 1/2 or 3/4 if needed, also it's a metric either 21 or 18mm bolt head, not SAE sizes

[harley1rocker]

dang,that sux man.did you try tapping on the wrench with a maul hammer?? i mean not tap but swing the chit outta the hammer.mine were seized like yours and i just beat the hell outta the wrench to get em off,and heck i didnt even think bout the jack idea,thats a good idea there man.get you one of them plumbers torch,and heat the bolt,only dont reuse the sumb1tch after ya heat,get you a new one.

[Jonboywv12]

it was a 17mm bolt i was using a 1/2 in drive on a 6 point socket with the ratchet still nothing. i have soaked it in PB blaster like crazy. nothing then i then took the snap on impact gun and gave it a spin still nothing except when i used the impact i had to go to a 12 point and i hate using that cause i do not want to strip the bolt....

the floor jack idea sounds alright...but idk if i can risk that...yes i have tried the hammer and beating the chit outa it and still nothing! its like these damn bolts are in for good!

any other advise would be great!
ill keep yall posted thanks alot!

[venom_nitrous]

Tap (read hit hard) the head of the bolt with a hammer. It will help break it free and loosen the rust if there is any in there.

[86lxnotch]

if hitting the head doesnt free it you can also heat the caliper up some around were the bolt goes in. it should expand enough to get it broken free