Yes

Then the new bedliner stuff bods better.. Same reason you sand before you paint. thats esentially what your doing is repainting your bed

But unlike painting your body you don't need to shoot clearcoat and do all the other steps to make sure it turns out perfectly smooth

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The {EVOLUTION} Continues
!:::My Ride:::!
[SIZE="1"]2003 FX4 Ext cab 4x4.
4.0L V6, 4.10 axel 8.8 l/s, CAI, 2.25" Exhaust w/ turbo muffler.
T-bar crank, 33x12.5 Firestone Destination A/T on 15x8 Soft 8's.
3" BL, 6400 Shackels
Red LED's:Under dash and behind Grill, 6" fogs behind grill, painted headlights and flairs
Truxxedo Lo-pro Tonneu Cover and Chrome bed rails
Mods to come:DIY bedliner.