Thanks Gdads51, these pics will help if I rebuild it myself. I found two sources now for kits. This Bendix is a 547550, according to the tag. Maybe somebody put the wrong one in? Should I go ahead and order the 374000? This one looks like brand new inside except for a little sawdust type dirt inside. No corrosion. 7" diameter.

1949 Chevy 6400 two ton, 2 speed rear end, 235 engine, 13 foot hydraulic dump bed.