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**aotte1** · 03-12-2021, 11:53 PM

GMC Suburban Seat Belt Tags, extra photo showing grade 8 bolt head marking “TR”. All the seat belt bolt head markings were “TR”.

NOTE: Believe seat belts were factory installed, but can not confirm. Also, finding 1966 Suburban bodies to have unique seat belt features, not found on earlier subs.

03-12-2021, 11:53 PM	#36
aotte1 Senior Member Join Date: Oct 2013 Location: lousiville Ky Posts: 2,637	Re: 1966 GMC K10 Suburban Project GMC Suburban Seat Belt Tags, extra photo showing grade 8 bolt head marking “TR”. All the seat belt bolt head markings were “TR”. NOTE: Believe seat belts were factory installed, but can not confirm. Also, finding 1966 Suburban bodies to have unique seat belt features, not found on earlier subs. Attached Images Last edited by aotte1; 03-13-2021 at 12:02 AM.