Need to remove the bedliner to install my backrack...
These screws are driving me crazy.
2003 F150, bed liner screws have never been touched.
I started to loosen one screw with 1/4" drive socket wrench (small TORX socket required).
It was turning hard, so I soaked it and other screws with some rust blaster.
Waited 1/2 hr, grabbed my 3/8" drive, for better leverage... head snapped off.
That really sucked.
So, I soaked the remaining screws with some rust blaster again.
Waited another day, soaked them again twice.
Today, using my 1/4" drive again, started to turn out a screw, but it stopped.
Fearing I'll break some another screw head, I stopped.
I'm thinking the back side/exposed threads are corroded, and will never come through the body bolt fitting.
I have limited tools.
Got any tips to simply remove these dang bolts?

 

Can you see/spray the part of the bolt that extends under the bed?

 

I briefly looked from underneath as best I could, but nothing stood out.

Have you or anyone else heard of shocking a screw/bolt?
Take a hammer, socket extension and socket/ this case a torx screw.
Assemble onto the screw/bolt, and then hit the extension with a hammer.
Should break the rust bond.

Using heat when applicable is great, but not with the -plastic- bed liner.

 

An air impact gun might help, if you have one.

 

Hey Dave K.
Thanks for the tips to remove that busted screw.
Finally got the busted screw out... from between the bed and the fender.
Some rust blaster and Vise grips broke it loose.
Lots of 1/4 turns and it finally fell out.
Rest of the other scrws came out nicely with my Rigid drill in hammer mode.

Bedliner came out relatively easy.
Only have two spots to apply rust preventative /sealer to.

Got my backrack hardware ready to install.
Inspected it... Found smashed threads on both funky shaped mounting bolts.
Could only fix one, hoping to chase thds and fix.
One thing after another has held me back from getting that backrack on.

Going to replace the stock tie hook screws with SS hex head screws.
Metric size 6, FYI...

THANKS AGAIN FOR THE REMOVAL TIPS

 

Glad you managed to get the screws out. Good idea on the SS screws.