weewilly,

From what I know, that rear mount was originally riveted together.

You will need to cut-off or drill those out and use bolts and nuts to reassemble.

Might suggest using "nylock" self-locking nuts for reassembly.


~ Dan
1951 Chevy 3 window 3100
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"My Grandpa Carl's Truck and How it Became Mine"
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US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)