NUMBERS (Part 3 of 4)
Rear brake drums
GM3857752 KH54189 I248 (I=September, 24= day of month, 8=1968)
The KH number on the drum could be a Kelsey Hayes part number (the OEM).
Rear wheel hubs
GM3763180 I268 (I=September, 26= day of month, 8=1968)
Hub and drums: The last four characters are the date code. The first character is probably a straight line letter I and not the number 1. This would correspond to the other September codes.
Alternator
1100839 42A, 8J14 12VNEG
8 = 1968, J = September ( "I" gets skipped on alternators), 14= day of month
This looks like it’s the original alternator which is kind of amazing.
Frame markings
Top of both frame rails at rear 95
Lower frontmost crossmember 95
Rearmost crossmember B-CE20934
The 95 appears in three places and may have been used as an assembly line sequence number (my guess). CE20934 matches the SPID model number. I have no clue what the "B" might mean.