I had the same question about the Suburban, which is no longer
offered in a Diesel. I have been told that the Allison transmission is too
tall to fit in the current frame for light trucks; so the Diesel is only
offered on the Sierra 2500 HD. Someone else suggested that the Duramax
Diesel needed a stronger frame, hence the HD requirement. Perhaps the same
dimensional problem affects the vans?
- Dick
(5368)