I don’t think these came from a Ford. NP435 were used in plenty of other applications. When I was looking into a divorced NP205 the majority were right hand drop. The left hand drop Ford units were few and far between and much more expensive.
SHORT BED 4-DOOR DIESEL: 1986 F350 4x4 under construction-- 7.3 IDIT ZF5+GVOD
STRAIGHT SIX 4X4: 1981 F150 2wd to 4x4-- 300 I6 close ratio diesel T19, hydroboost brakes, Saginaw steering
BIG F: 1995 F-Superduty under construction— converting to 6.9L IDI diesel ZF5+DNE2