Quote:
Originally Posted by DogMeister
There were two Dearborns, at least in 1967, a "DA" and a "DB." The DA is described as the "standard Pontiac 3-speed" whereas the "DB" is described as the "heavy duty Tempest 3-speed." It looks like the DA has a longer output shaft and housing, so it won't fit in a Tempest/Lemans/GTO. Ratios were 2.44, 1.66, & 1.00 w/ 2.33 reverse.
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Longshaft version is for B-bodies (standard Pontiac)
Short shaft is for A (and F) bodies (HD Tempest 3 std)
I may be mistaken, but I believe the only difference is the tail shaft/housing with the gearbox itself being essentially identical.