long bed bed to frame bolt pattern

[KP Jon]

The bed to frame bolts at the front of a long bed bed have three recesses in the bed floor for bolts and two different patterns. Some use the front two positions and some use the first and third position with longer bed to frame bolts in that third position. I'm trying to figure out if there is a specific year break, chassis style, etc. that this pattern follows.

If you have a long bed truck I'm asking if you can look at the two sets of bed to frame bolts and post the following: 2WD or 4WD, year, and which two holes are used (1 and 2 or 1 and 3)

Thanks!
Posted via Mobile Device