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06-13-2011, 03:23 PM
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#1 |
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Registered User
Join Date: May 2008
Location: California
Posts: 161
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1972 Seat Belt Bolt Size
Anybody know the size of these?
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06-13-2011, 04:00 PM
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#2 |
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Registered User
Join Date: May 2008
Location: California
Posts: 161
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Re: 1972 Seat Belt Bolt Size
Anybody?
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06-13-2011, 04:43 PM
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#3 |
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Registered User
Join Date: May 2008
Location: California
Posts: 161
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Re: 1972 Seat Belt Bolt Size
Just need to find out the thread type and size:
Here's what I've found so far: 1 3/4 long overall Thread length = 7/8 Diameter 11/20 |
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06-13-2011, 06:50 PM
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#4 |
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Registered User
Join Date: Nov 2009
Location: so cal
Posts: 97
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Re: 1972 Seat Belt Bolt Size
7/16 fine thread (SAE)
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06-13-2011, 07:53 PM
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#5 |
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Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Re: 1972 Seat Belt Bolt Size
The bolts that hold the lap belts to the floor are 1/2-13 but they are designed for seat belt usage. The shoulder belt location is 7/16 fine thread and the right bolts should be used there, also.
Jim
__________________
1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC |
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06-14-2011, 08:39 AM
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#6 |
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Registered User
Join Date: May 2008
Location: California
Posts: 161
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Re: 1972 Seat Belt Bolt Size
thanks guys
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06-16-2011, 11:30 PM
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#7 |
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Moderator
 
Join Date: May 2007
Location: Southern Cal
Posts: 20,036
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Re: 1972 Seat Belt Bolt Size
7/16 fine thread on cab floor mounts for a 67, 1/2 coarse thread on 68-72 cab floor mounts. 7/16 fine thread on all 67-72 pillar mounts.
__________________
1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man RIP FleetsidePaul |
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06-17-2011, 06:07 PM
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#8 |
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Registered User
Join Date: Nov 2009
Location: so cal
Posts: 97
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Re: 1972 Seat Belt Bolt Size
sorry, i learn something every time i log on.
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