Okay got a new tuck whiel new to me an 2006 150 Screw Lariat and i want to bet a bed liner how do i measure the bed to get the correct size i think it has 6.5 bed Pics are in my gallery..

 

Its a 6.5. The easiest way to tell is to look at the space between the cab and the rear tire. When you see 5.5 you will see what im talking about.

 

Thanks i thought i was as long as my Scab but wasnt sure

 

when i bought my truck i wasnt sure either. i was driving it home and thought. this thing is kinda long. haha. i measured it with a tape measure. but since owning it I figured out the easiest way to tell the difference in the 5.5 and 6.5 beds is the length of bed on the fender between the rear wheel and the cab.

 

if i had to guess i would say 6.5, saw the pics in the gallery of your old FX4 ouch it looks like the rear axle must of took a pretty good hit.

 

Yea 24000 worth of visiable damge the insurance said so they totaled it