READY to set bed on frame is there only 4 bolts that go thru frame--2-rear and 2 in back-- my 2 center cross members are bolted to bottom of bed not going thru frame is this correct

 

actually there are 8 bolts total... two in the front crossmember that bolt to the brackets outside the frame rails...4 inside the bed and the two at the rear crossmember to frame rail ends ignore the comment about hidden bolts, that was for someone else.

 

I take it you were asking the locations from the top inside the bed so you can drill holes through that sheet of steel..?

 

Measured and marked top side of diamond plate and drilled the 6 holes thru and the back 2 at tail gate was under bed plate not needed to drill thru--all fastened down and bed is fasten to frame-- DONE