I got stuck with my 98 ranger 4.0 auto 4x4 this winter. When I got out the truck wouldn't move in drive. It starts in second and I can shift it into drive when I get up to 3,000 rpms. Reverse also works fine.
Tell me if I am on the right track here:
from reading other posts in this forum it is probably a pressure issue, possible the sep gasket.
There is different clutch plates in that transmission then i think you are thinking of, should have one for Drive, and one for Reverse.
i agree tho, OP should probably start looking for a rebuilt, cause his is toast.