Seafoam Deep Creep is what I've been using lately. I haven't had to cut a bolt yet with it, even stubbord exhaust bolts. Busted a few nuts though, but only cuz my wife likes me gettin all dirty under the trucks.

 

PB Blaster is great my friend told me about it works great dad is a welder says they have it on all the jobs. Great stuff!

 

PB is good. Air impact is nice but it didn't work either and at the time my truck was only 3 Yr. old. I just ended up cutting most of mine out and replacing them with bolts......Stainless Bolts! Something that should be standard equipment since most people end up needing to pull these bolts for one reason or another.

 

i find that everyone has problems with taking the bed bolts out to install a bodylift. maybe i was lucky but mine came out very easy. all i did was spray them with WD-40 the afternoon before the install. i did it with a socket and wrench. like i said maybe i just got lucky.