4 Speed w/o Overdrive

[GeneBob]

Is there a 4 speed non-overdrive transmission that will fit into the Model A? I have a 1935 3 speed plus a separate overdrive and have been considering going to 4 speeds with a higher speed rear end ratio in order to eliminate the separate overdrive unit.
I am afraid of the truck 4 speeds because of the granny low. There were apparently some Jeep versions of the T170 trans that were 4 speed non-overdrive but I have no idea if this would work.
Any suggestions?
Thanks, GeneBob