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11-14-2011, 09:03 PM
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#1 |
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Registered User
Join Date: Dec 2009
Location: McDonough,GA
Posts: 123
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Do flex?
Had to change a flat the other day and when I jacked up the truck, it had massive chassis flex. And to get started I lifted on lower a arm not chassis. anybody else have this issue. not trying to make a g machine. but this much twist is torque loss at the wheels.
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11-15-2011, 12:33 AM
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#2 |
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Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
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Re: Do flex?
These old trucks were built to flex
 If I drop my Longhorn into a "cloverleaf", that states 25mph....runnin 55 goin in, & 75 coming out. turninright, but steerin left....she is long, & she slides slow & easy(take 2 lanes totally crossed up), & I have been there  crazyL
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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11-15-2011, 11:50 AM
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#3 |
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Just a car guy
Join Date: Feb 2006
Location: New Washington, IN
Posts: 991
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Re: Do flex?
The frame is built like a ladder. It is easy to twist. And triangles to make it stiffer.
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1955 belair Blown Pro Street cruiser 1971 Camaro Pro Touring 1973 Vega Drag Car 1970 C20 tow rig |
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11-15-2011, 01:59 PM
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#4 |
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I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,993
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Re: Do flex?
Almost all ladder frame vehicles flex.They usually use some of that flex to absorb road fluctuations.So when you see a drag racer that doesn't run that quick but has a roll cage,that's why.They use the cage to create rigidity in the frame.Adding triangles will stop "racking" but not actual flex.Unless they are triangulated to help strengthen and solidify the cage.
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The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
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