Dltalfa,

Spent a few minutes researching your clarified question using the resource provided for all at http://chevy.oldcarmanualproject.com/index.htm (all credit to them for sharing this valuable resource thumbs_up ).

Comparing the following pages from the 1941 Car and Truck Shop Manual (also covers through 1946 models as basically few changes during the war years), it does not appear that a truck 3 speed would be a direct bolt in for the truck 4 speed.

http://chevy.oldcarmanualproject.com/shop/1941/41csm208.htm

http://chevy.oldcarmanualproject.com/shop/1941/41csm215.htm

3 speed truck trans (with top mounted shifter/not car trans with side mounted shifter arms) diagram displays output is for a torque tube enclosed drive and 4 speed shows output for an open style drive shaft.

Just info found using the original shop manual (I have limited personal experience with this era of truck) and am sure that others with more direct knowledge will chime in to help answer your question.

Hope this helps the conversation along. grin

Dan wave

~ Dan
1951 Chevy 3 window 3100
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