Tim has shown the reason I suggested custom mount blocks---to keep the bed to cab position of the bed the same. Picture is of an S10 frame swap with the tape line that puts the bed in the correct position in relation to the back window. Ones mounted lower look funny to me. Cypress mount blocks last forever.

[img]https://i.postimg.cc/G87cRmBw/S10-032.jpg[/img]


Evan