gabe4 said:
I don't use the gun for any first time removal of anything!
I have a process for removal of the most stubborn bolts.
I was even able to remove ALL 4 rear upper shock bolts! (XJ from CO)
First: Prep, a day or two of PB
Next, Heat (I like to use MAPP gas, it's hotter)
and den, a little more PB
and den, a direct hit w/bfh on bolt head or nut to impact the rust
and den, a little tightening force
and den, loosen a little
and den, tighten a little
and den, loosen more
and den, tighten a little
and den, loosen more and so on hopefully NO MORE AND DEN
I'd cut and drill and replace w/G8 zinc plated and a little anti seize
I use anti-seize religiously on everything