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08-07-2011, 12:43 PM
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#1 |
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Senior Member
 
Join Date: Oct 2009
Location: Greensboro, NC
Posts: 698
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Rear shock lower mount bolt
Over the weekend, I've been working on putting stock height springs and shocks on. It seems like all shock related bolts are fine thread. It was hard to find 1/2" fine thread bolts close by, so to get it back together I used some 1/2" course thread bolts that I had. How important is it to have fine thread? I can probably get some from Automotive Fasteners during the week if I need to. I would've just reused the ones I took off, but they were 5/8" shoulder bolts that won't work with the new shocks. Thanks!
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 1967 Chevy C-10, 250 L6, Powerglide, 3.73, SWB, FleetsideUpgrades: Power steering, Offset air cleaner, Rear Sport bumper, 3 point safety belts, HEI, -1/-2 springs, 16x5 wheels, McGaughy's disc brake conversion, Sway bar |
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08-07-2011, 06:35 PM
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#2 |
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Registered User
Join Date: Apr 2011
Location: Mustang, Oklahoma
Posts: 2,806
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Re: Rear shock lower mount bolt
I get the fine thread bolts & nuts from ACE hardware locally, dont know if you have them in NC though. i think the fine threads are less likely to loosen under road vibration etc but im not an engineer at GM just my 2c. most older GM suspensions that ive messed with had fine thread hardware.
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Dan <---(my name) 67 SWB C10 project "GEORGIA"-59 Brookwood 2dr wag...Next project-03 Tahoe 4x4 5.3 family ride-07 Hondur Accord, commuter car |
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08-07-2011, 08:12 PM
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#3 |
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Registered User
Join Date: Jun 2010
Location: Upland Ca
Posts: 4,147
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Re: Rear shock lower mount bolt
Coarse thread will work as long as it's grade 8.
Posted via Mobile Device
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1972 C10 SWB, Air, PS, PB, 350/350THM. Second owner. 1965 Corvette roadster, 44K miles, 327/365 SHP, 4 speed, side exhaust, knockoffs, teak, second owner (bought in 1970), Have ALL numbers matching components. My frame off restoration thread: http://67-72chevytrucks.com/vboard/s...d.php?t=556703 |
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08-07-2011, 08:30 PM
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#4 | |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,064
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Re: Rear shock lower mount bolt
Quote:
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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08-07-2011, 09:32 PM
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#5 |
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Senior Member
Join Date: Oct 2009
Location: Greensboro, NC
Posts: 698
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Re: Rear shock lower mount bolt
Thanks guys! I kinda thought I would be ok with the course thread bolts, but wanted to ask to be sure. Lowe's used to keep the larger bolts in fine thread, but they have really cut back on their stock over the past few years.
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1967 Chevy C-10, 250 L6, Powerglide, 3.73, SWB, FleetsideUpgrades: Power steering, Offset air cleaner, Rear Sport bumper, 3 point safety belts, HEI, -1/-2 springs, 16x5 wheels, McGaughy's disc brake conversion, Sway bar |
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