pulling hitches
07-05-2006, 05:16 PM
#16
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I wouldn't believe you...but, I've heard that before, and we use Gr. 5's as shear bolts in some ag applications. Others, we use 8's.
Makes no sense to me, other than a harder bolt coul be more brittle in certain aspects??
Chris
Makes no sense to me, other than a harder bolt coul be more brittle in certain aspects??
Chris
07-05-2006, 05:19 PM
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Originally Posted by signature600
Makes no sense to me, other than a harder bolt coul be more brittle in certain aspects??
Chris
The harder grade 8 will shear easier than a grade 5. Think about nails and wood screws, the screws are a lot harder, but also break easier if they bend.
07-06-2006, 10:53 PM
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Originally Posted by PourinDiesel
Guys those thrown together hitches will last several pulls maybe more.
But if your going to run crazy power or if you have a rough pull those type of hitches (like hitch with clevis through it) have a great chance of coming apart and will bend very easily (seen it many times).
Here is what I use for pulling:
It works very well (I am not saying its the best but is pretty darn good!)
The shaft is solid 2" bar stock (not hollow tube).
If anyone wants to know where to get the loop and channel(or needs a hitch made) let me know.
The inside diameter of the loop is 3" and will fit any hook from any sanctioned/pro type sled.
But if your going to run crazy power or if you have a rough pull those type of hitches (like hitch with clevis through it) have a great chance of coming apart and will bend very easily (seen it many times).
Here is what I use for pulling:
It works very well (I am not saying its the best but is pretty darn good!)
The shaft is solid 2" bar stock (not hollow tube).
If anyone wants to know where to get the loop and channel(or needs a hitch made) let me know.
The inside diameter of the loop is 3" and will fit any hook from any sanctioned/pro type sled.
Thanks
07-06-2006, 11:54 PM
#23
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Originally Posted by PourinDiesel
Grade 5 is a tougher bolt for "work" purposes (one that has to bend and such).
Grade 8 is superior for a "torque" application where it is stable...if the bolts gonna move or flex 5 is superior.
Hey but what do I know....
Grade 8 is superior for a "torque" application where it is stable...if the bolts gonna move or flex 5 is superior.
Hey but what do I know....
Btw, if anything does "flex or move" then your equipment aint built right in the first place.
"hey but what do I know"
I only have a BS in Physics! 
And also, you did make me second guess myself, so I went to 2 other engineers I work with for a sanity check, both agreeing with me. Sorry for trying to help. It wont ever happen again PourinDiesel. Goodluck with them "work" bolts.
07-07-2006, 12:16 AM
#24
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things arent looking good for me to be able to pull...most of the pulls i will be entering in my area follow the rules of the interstate pulling association, and their street class doesnt allow any aftermarket turbos, and the modified class requires so much safety stuff that i wont be able to afford it all before next pulling season, let alone this pulling season
07-07-2006, 01:00 AM
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Hey I never claimed to be an engineer...oh boy you really got me on that one 
But I do know what works and I do sled pull with this setup and its holding up fine.
Have you ever even pulled a sled? Or do you just run around like a wanna be with a "PULLM" license plate and a clevis hanging off of your truck?
At least I know the answer to that question...
But I do know what works and I do sled pull with this setup and its holding up fine.
Have you ever even pulled a sled? Or do you just run around like a wanna be with a "PULLM" license plate and a clevis hanging off of your truck?
At least I know the answer to that question...
07-07-2006, 01:11 AM
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http://stores.ebay.com/ChicagoProducts-US
Thats where I got the channel and loop.
You basically run a gussett (2" hollow tube 1/4" wall) and use some 2" solid stock (as the slide in part) and weld that to the channel.
Thats where I got the channel and loop.
You basically run a gussett (2" hollow tube 1/4" wall) and use some 2" solid stock (as the slide in part) and weld that to the channel.
07-07-2006, 06:47 AM
#27
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Originally Posted by PourinDiesel
Hey I never claimed to be an engineer...oh boy you really got me on that one
But I do know what works and I do sled pull with this setup and its holding up fine.
Have you ever even pulled a sled? Or do you just run around like a wanna be with a "PULLM" license plate and a clevis hanging off of your truck?
At least I know the answer to that question...
But I do know what works and I do sled pull with this setup and its holding up fine.
Have you ever even pulled a sled? Or do you just run around like a wanna be with a "PULLM" license plate and a clevis hanging off of your truck?
At least I know the answer to that question...
If I wasnt paying my truck off in two years, and extended my payments out to 72 months, I would have over an extra grand a month to mod my truck and have the setup that would handle pulling.
but to answer up for the license plate... I pull lots of things, one of which being hot girls - now thats what really matters - ever pull one of those?
07-07-2006, 07:10 AM
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please keep your arguing out of my thread guys...LOL
2-stroke, pulling hot girls isnt half as important as pulling fords and chevys all over town
gotta keep the lesser powered trucks in their place ya know!
2-stroke, pulling hot girls isnt half as important as pulling fords and chevys all over town
gotta keep the lesser powered trucks in their place ya know!
07-07-2006, 08:24 AM
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im only kidding bud, people will have different views, an engineer can look at the facts and tell you what is true...but the guy who has been pulling and snapped grade 8 bolts, but used grade 5 and they hold up to the bending/shearing forces rather than the 8's knows that even tho the facts are different, the grade 5 works where a grade 8 dont