Posted by AAA on Friday, April 04, 2003 at 9:19AM :
In Reply to: 1961 D200 posted by RDavis on Friday, April 04, 2003 at 0:40AM :
the trans should be a NP420, with a fine spline input, regular \6 engine.
Only the 300 series on up would get the premium engine. Further - the bigger trucks used a flathead 251 engine in 1961, with the slant six premium being introduced in 1962 (or 63?).
I would have to look in the Dodge books to be exact.
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