Don't know how many of you guys have seen this, but about fifteen years ago the boys at sae put together a Ford truck model history.
http://www.fordifica...php?f=2&t=37394
Great reference.
As far as the short flareside boxes go, the design used on the sixties trucks ran from 53-72. Ford actually dropped the short flareside from 73-75 as they had widened the rear axle and frame in 73 and it no longer fit. They continued to use the eight foot flareside, though, which was wider and taller. For '76, they decided to issue a shortened version of this box. This turned out to be for one year only as the tall sides with the flared top were kind of out of proportion to the length so for 77 the box side tops were flattened out. This is the design that ran through the eighties, with only a change to the squared off fenders from the rounded ones in 80. Therefore, to build a short pre-73 flareside, the boxes from revells 56, monograms 55 and amts 53 can be used. The boxes from monograms 80-up shortbox and the revell night rider truck could be used to build an accurate 77-79 flareside with just a change of fenders.
The big block engines used from 68-72 were either the 360 or the 390. They never came with 428s stock unfortunately.
mike