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10-03-2014, 02:11 AM
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#1 |
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Registered User
Join Date: May 2014
Location: SAN FRANCISCO
Posts: 447
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High Hump bolt size?
getting ready to bolt in my new high hump and wondering what the original bolts were? Also I'm thinking of installing them using rivnuts. Anyone think of a reason why this would not be a good idea? seems to beat the heck out of welding in a bunch of square nuts.... especially as I don't have access to a lift at the moment.. thx
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'66 C10 SWB '64 C2 roadster '38 Indian Scout Flattracker '70 Triumph T120R '81 Laverda Jota |
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10-03-2014, 09:05 AM
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#2 |
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Registered User
Join Date: Dec 2002
Location: pacific north west
Posts: 230
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Re: High Hump bolt size?
5/16 inch shoulder bolt, that's what I call them. They're a 5/16 inch hex head bolt with a round base on them.
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10-03-2014, 01:36 PM
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#3 |
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Registered User
Join Date: Apr 2014
Location: Union City, CA
Posts: 384
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Re: High Hump bolt size?
Correct, 5/16-18", I used 3/4" length I believe. You can use rivnuts, that's one way. I went ahead and did the square nuts myself, was actually pretty easy to do with it sitting on the ground in the driveway.
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10-03-2014, 01:43 PM
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#4 | ||
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Registered User
Join Date: May 2014
Location: SAN FRANCISCO
Posts: 447
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Re: High Hump bolt size?
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I've got a fancy ARO air rivnut gun that I don't get to use often enough so this is a good opportunity put it to work.
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'66 C10 SWB '64 C2 roadster '38 Indian Scout Flattracker '70 Triumph T120R '81 Laverda Jota |
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10-03-2014, 02:18 PM
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#5 |
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Registered User
Join Date: Apr 2014
Location: Union City, CA
Posts: 384
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Re: High Hump bolt size?
I've got a nice Marson giant thread setter tool myself. Take some pics when your done. I just finished doing this conversion myself a couple weeks ago.
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10-03-2014, 10:58 PM
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#6 | |
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60-66 Nut
  Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,252
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Re: High Hump bolt size?
They aren't shoulder bolts. They are called body bolts. Similar to a washer head or flange head bolt.
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10-04-2014, 06:50 PM
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#7 |
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1961 crewcab
Join Date: Dec 2007
Location: missoula, mt
Posts: 6,164
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Re: High Hump bolt size?
you should be able to find them all over the truck holding on the fenders, parts of the bed, dash etc.. the ones that take the 1/2 inch socket.
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10-04-2014, 08:54 PM
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#8 | ||
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Registered User
Join Date: May 2014
Location: SAN FRANCISCO
Posts: 447
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Re: High Hump bolt size?
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'66 C10 SWB '64 C2 roadster '38 Indian Scout Flattracker '70 Triumph T120R '81 Laverda Jota |
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