do you have the 14ff drw narrow or the dana 70HD wide drw axle ?
pickup bed with flairs uses the wide dana 70HD rear .
reg pickup box and srw bed with rubber flairs makes a stelth drw pickup on the 14ff narrow rear .
and what is your wheel base at this moment ? std cab long bed is 131.5" . most dumps were 135.0 some were longer but kind of rare . if the 135.0 dont bother moving the axle . just center the bed and drill the holes and bolt it on . to the un trained eye they wont notice the tiny extra gap . i have done it before and it looked o.k.
