Installing seat belts....Which holes do I use? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

aod92 · 05-28-2016, 05:31 PM

I'm about to put seat belts in my 67 c10. I have non retractable lap belts. Behind my bench seat there are 3 holes on each side. Do I use the hole that's furthest to the door, and also the one that's furthest to the middle of the cab? Also do you guys know the bolt size?

72farmer · 05-29-2016, 09:06 AM

I too am trying to put seat belts in my 67.I took a set out of my 72 GMC donor truck.It had 1/2" course thread bolts.After trying to run a 1/2" tap into my bolt holes and ruining one I found out they were fine threaded 7/16X20.I don't know when they changed from 7/16" to 1/2".

05-28-2016, 05:31 PM	#1
aod92 Registered User Join Date: Dec 2014 Location: Plainfield il. Posts: 643	Installing seat belts....Which holes do I use? I'm about to put seat belts in my 67 c10. I have non retractable lap belts. Behind my bench seat there are 3 holes on each side. Do I use the hole that's furthest to the door, and also the one that's furthest to the middle of the cab? Also do you guys know the bolt size?

05-29-2016, 09:06 AM	#2
72farmer Registered User Join Date: May 2009 Location: Hazel Green AL Posts: 286	Re: Installing seat belts....Which holes do I use? I too am trying to put seat belts in my 67.I took a set out of my 72 GMC donor truck.It had 1/2" course thread bolts.After trying to run a 1/2" tap into my bolt holes and ruining one I found out they were fine threaded 7/16X20.I don't know when they changed from 7/16" to 1/2".



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