Join Date: Jan 2015
Location: Injun Territory, 'Merica!
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Following are stock driveshaft lengths, all are measured center to center of the U-joints:
-'68-70 Muncie 4 speed : 56.00"
(small output shaft Muncie, has 5 bosses on tail shaft hsg for alum shifter mtg plate)
-'71-72 Muncie 4 speed: 55.375"
(large output Muncie, has 3 bosses on tail shaft hsg for steel shifter mtg plate, uses Turbo 400 yoke)
- '68-72 Turbo 400: 55.375"
Note, both the '71-74 Muncie 4speeds and factory Turbo 400 A-body driveshafts use the medium length '67-74 Turbo 400 yoke with 3R ujoints. GM saw fit to use many different versions of the Turbo 400 yoke, there are at least 2 versions of the long style Turbo 400 yoke, as well as a version of the late '70 's short style Turbo 400 yoke, these should not be combined with above factory length driveshafts.