Made Some Chassis Tie Downs
#2011492
02/14/16 12:38 AM
02/14/16 12:38 AM
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Joined: Jan 2003
Posts: 4,275
Morrow, OH
markz528
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master
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OP
master
Joined: Jan 2003
Posts: 4,275
Morrow, OH
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Well due to some miscommunication, did not weld chassis tie downs on the k member of my GTX build before the k frame got powder coated.
So I had to make some. Pretty happy with the results. Each bolt is god for just under 2500 lbs in shear (for a total just under 10,000 lbs) so I should be good. In addition I got the tab in the back to help just in case.
67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
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Re: Made Some Chassis Tie Downs
[Re: markz528]
#2011523
02/14/16 01:10 AM
02/14/16 01:10 AM
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Joined: Jan 2003
Posts: 7,494
Minnesota
Hemi_Joel
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master
Joined: Jan 2003
Posts: 7,494
Minnesota
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Nice powder coat.   Kidding. Good job on the tie downs! 
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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Re: Made Some Chassis Tie Downs
[Re: markz528]
#2011553
02/14/16 01:48 AM
02/14/16 01:48 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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If those are 3/8" grade 8 bolts you wont have any issue.. even that you are gonna apply some tensile load to them EDIT Unless you have a huge hole in the plate.. take off the flat washer and use a lock washer.. or use a longer bolt with both a flat and lock 
Last edited by MR_P_BODY; 02/14/16 01:51 AM.
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Re: Made Some Chassis Tie Downs
[Re: MR_P_BODY]
#2011675
02/14/16 12:40 PM
02/14/16 12:40 PM
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Joined: Jan 2003
Posts: 4,275
Morrow, OH
markz528
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OP
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Joined: Jan 2003
Posts: 4,275
Morrow, OH
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If those are 3/8" grade 8 bolts you wont have any issue.. even that you are gonna apply some tensile load to them EDIT Unless you have a huge hole in the plate.. take off the flat washer and use a lock washer.. or use a longer bolt with both a flat and lock Exactly on the forces on the bolt - there will be a significant portion of the load that will be in tension (tensile load) which is a higher rating than the shear rating so I ignored it. I will be using grade 8 hardware. Unfortunately I had to slot the hole by .200" because I located the hole too far forward and did not have enough material left in the k frame to maintain the sheer strength. So I need to use washers. Not exactly sure what I will end up with for actual hardware but it will all be grade 8 hardware.
67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
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Re: Made Some Chassis Tie Downs
[Re: Monte_Smith]
#2012070
02/14/16 10:39 PM
02/14/16 10:39 PM
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Joined: Jan 2003
Posts: 4,275
Morrow, OH
markz528
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master
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OP
master
Joined: Jan 2003
Posts: 4,275
Morrow, OH
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And guys wonder why their cars are heavy..................LOL!!! Yup, Yup, Yup! But its got weight reduction holes! 
67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
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