Originally Posted by 5WINDOWJOHN
I WAS LOOKING THROUGH A MASTER PARTS MANUAL 1929-1954 AND SAW,1947-53- SBC, 2 TON
WHAT SIZE TRUCK OR STYLE TRUCK DOES THE "SBC" REPRESENT
Check front of Catalog under Abbreviations start at page 5, what your looking for is on page 6.
The Master Parts Catalog 1929-1954 has some dead links if you start at the CONTENTS page and try to click Next Page you get a dead link.
You have to start at the ALPHABETICAL INDEX page 11 and click Previous page and back up to page 6.
Master Parts Catalog 1929-1957 does not have this problem.

Any Whoo, (SBC) or (Sch. Bus Ch.) = School Bus Chassis
Here the link: http://chevy.oldcarmanualproject.com/parts/1929_54/006.HTM (Upper right hand column)

"red58" Had it correct!