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first of i'd like to say greetings, and hopefully this will be the first of many beneficial posts for everyone.
I am currently working on a brief history of the domestic manufacturers
diesel light duty-heavy duty pickups 1978-current models, 1/2-1.75 ton(f550/gm 5500/dodge 5500), including, chassis,diffs,tcases,trannies,cabs and spec packages. i have found very little info
regarding these on the net and the books and other publications that I have are limited in regards to these specs.
what i am currently searching for however, is information pertaining to the in-direct injected diesels from 1978-1992 5.7 gm/6.2 gm and naturally aspirated 6.5 gm( i have enough info on the 6.5turbo) as well as the 6.9/7.3na and 7.3 turbo navistar/ford engines and transmissions behind these engines as well as the differentials and transfer cases.
In the fords you had three transmission options, from the beginning you had a 5speed manual (forget what make the early ones were), or a C6 Ford automatic. After 1989 you had three choices, a ZF 5 speed, a C6 3 speed auto or an all new E4OD Ford automatic overdrive. Rear ends were either a ford 10.25" or a Dana 60 (F250/350 SRW), or a dana 70 (F350 DRW). Ratios were 3.55, 3.73, or 4.10.