Looks like a HO72 rear end, which would be correct for the 3800. I used Fel-pro RDS5090 carrier gasket and Fel-pro RDS5088 cover gasket when I went through the one on my '58.


1949 Chevy 3100 (In the family since new)
1955.5 Chevy 3100 - in the DITY Gallery - (Dad's truck)
1955 Chevy 6500 - in Big Bolts - (Possible parts truck?)
1958 Chevy 3800 w/9 ft bed - in Project Journals - (Current project)
1959 Chevy Spartan 10400 - in Big Bolts