It's easy to ID the late 50's car and truck bellhousing from each other, the car bell housing uses (2) small bolts to hold the motor mount on while the trucks had one large bolt.

I can't help with any differences in the sheet metal pans...

Mike B smile

Mike Boteler

1956 Chevy 3100 Resto Rod
1952 Willys M38 Army Jeep
1983 Jeep CJ7 Laredo
1984 Jeep CJ7
+++++
Silver Spring, MD