shear strength of body lift bolts
#1
shear strength of body lift bolts
So,it seems that the longer bolts on a body lift like 3" would have a lot more shear stress than the shorter stock bolts. For example, the mfg directions say not to use a truck for "jumping" after a body lift (not that I plan to). Has anyone done anything to provide extra lateral bracing after a body lift, or determined that it is clearly a potential weak point or not? Looking at my stock mounts, it seems that a one inch lift would be no problem but a 3" alteration would be significant variation.
Eh?
Eh?
#3
Whatever the ratings are for a 12mm grade 8.8 is what the strength will be. Grade 8.8 12mm bolts are what come in the kits...basically equivilent to Grade 5 std sizes. You can upgrade to Grade 10.9, which is the equivilent to standard Grade 8.
Alot of folks beat the **** out of their BL'd trucks and don't have any issues. I think you're other thinking some for what you use your truck for.
Alot of folks beat the **** out of their BL'd trucks and don't have any issues. I think you're other thinking some for what you use your truck for.
#5
If and when you do a bodylift, I suggest upgrading the support block things between the bed that are included in the kit. They're just 2x3 rectangle tubing that go between the bed crossmembers and the frame. I don't know how much they'll handle or anything, but it never hurts to use beefier material than what they include.
oh...and for what it's worth, I've had a little over half a ton of scrap steel in my bed a couple times without those bed support blocks and there was no bed bendage/bowage at all.
oh...and for what it's worth, I've had a little over half a ton of scrap steel in my bed a couple times without those bed support blocks and there was no bed bendage/bowage at all.
#7
#8
#10
I looked into Grade 8.8 M12 hex head cap screws, cause I can't get a good description of what the kit comes with...
As for shear strenght, I couldn't find a rating for the ones we sell, but the tensile strength of Grade 8.8 is 116,000psi...and the rockwell hardness is C22-C32. I doubt you would have problems with shearing the bolts off
As for shear strenght, I couldn't find a rating for the ones we sell, but the tensile strength of Grade 8.8 is 116,000psi...and the rockwell hardness is C22-C32. I doubt you would have problems with shearing the bolts off
#11
#14
The thing you have to remember though is that when your bolt strength goes up...the tendency for that bolt to flex or bend normally goes down. So if you go with a stronger bolt, you could increase the chance for the bolt to break simply because the metal is so strong that it will not bend or give.
Same as like a tungsten carbide wedding band as opposed to a gold one. Tungsten carbide is one of the hardest metals, possibly *the* hardest metal, I can't quite remember...but it's so strong and has so little give that it will break long before the gold...which is why steel is used in construction instead of a harder metal.
Same as like a tungsten carbide wedding band as opposed to a gold one. Tungsten carbide is one of the hardest metals, possibly *the* hardest metal, I can't quite remember...but it's so strong and has so little give that it will break long before the gold...which is why steel is used in construction instead of a harder metal.
#15
#16
if it wasnt complaint with safety codes they would be sued off there *** and be bankrupt so being the fact i have only heard of one truck ever breaking the cab off the frame i dont think there is a problem
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Alon
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07-20-2009 01:08 PM