I had a 77' Trail-Duster PW100,
great rig opt. 48 state 400 bb 4 speed 4x4, Sport
(wish it was a 440, but couldn't find them in Alaska)
I put 4.10:1 gears & optional lock out Warn hubs,
3.55:1 was stock & it was fulltime 4wd
loaded, just about every option it could have
I put a dual plane alum 4-bbl intake & Carter Comp. AFB 750
dual exhaust 2-1/4' w/h-pipe, exited out behind the rear tires,
all of that stuff perked it right up
Had big Q78x15 35" tires, on the factory OE chrome slotted 'road-wheels'
& 4" lift, w/PTO & Mile Marker winch,
when I lived in Palmer Alaska, great 4x4 rig,
pulled many a rig out of the ditches & muskeg up there
had a Mile-Marker hydraulic/electric PTO
(operated off the replaced power-steering hydraulic pump, & a second group 34 battery)
operated the org. optional snowplow on the front too,
for clearing parking lots at an apt. complex I managed & doing driveways
taken off when not needed
no photos of it, mine was 'medium (dark) blue' with 'silver cloud' 2 tone,
with optional blue sport interior