You will blow a lot of oil out of the draft tube if you don't install the baffle. If you don't have one try asking in the parts wanted section of the swap meet on this forum. I believe you can install the baffle after dropping the oil pan.
Kent


1937 Chevy 1/2 ton
1942 Chevy 1/2 ton
1947 Diamond T Model 509
1951 Chevy 1/2 ton
1950 Chevy COE Model 5700 ~ "Barney" ~ And more pix