Here is a screenshot from the GM Heritage data trove for brake data. The "31-32" denotes the "3100 and 3200" series models.

Part numbers came form a search in GMpartswiki.

BTW - You're most welcome for the info. Just sharing knowledge. thumbs_up

Dan
Attachments
Brake data for 1958-Chevrolet-Truck.pdf.png (159.2 KB, 40 downloads)
1958 Truck Brake data

~ Dan
1951 Chevy 3 window 3100
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"My Grandpa Carl's Truck and How it Became Mine"
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