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Re: ladder bar safety restraints-ideas needed [Re: cudaman1969] #2882361
01/31/21 12:39 PM
01/31/21 12:39 PM
Joined: Oct 2005
Posts: 1,927
Seaford, Va
Kindafast Offline
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I have used the Chris Alston Solid heim joints on my heavy car for a lot of years. I just keep a lot of heavy grease on them and they still look like new. I do have the weld on safety straps on them but so far knock on wood they have been great.


6.50 @105.26
Re: ladder bar safety restraints-ideas needed [Re: Kindafast] #2882383
01/31/21 02:02 PM
01/31/21 02:02 PM
Joined: Dec 2006
Posts: 2,110
Byron, NY
W.I.N. Racing Offline
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To continue my previous post. I feel the Alston side strap is superior to the transitional safety strap (surround) due to its ability to fit in a tighter space and strength (more material). The traditional strap may be fine in a leaf sprung/floater set up but in a coil over set up the safety strap is the only protection you have from a very very bad day. The side strap when placed properly will allow removal of the Heim joint and should not cause interference with the mounting point.
As far as replacement of joints the rule of thumb I was told (40 yrs ago) was every two seasons. This could be translated into a certain number of passes and become more important in a coil over/ladder bar set up. With regard to solid vs swivel type joint usually the solid type joints are at the axle end of the bars not the leading end. This would facilitate the side to side rotation that occurs when there is chassis roll. A solid front joint would wear quickly if used in the leading position.


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Re: ladder bar safety restraints-ideas needed [Re: W.I.N. Racing] #2882448
01/31/21 03:47 PM
01/31/21 03:47 PM
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fredericksburg,va
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cudaman1969 Offline
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fredericksburg,va
How will a chassis roll with ladder bars? UNLESS the chassis or bars are flexing, it’s a solid platform.

Re: ladder bar safety restraints-ideas needed [Re: W.I.N. Racing] #2882464
01/31/21 04:26 PM
01/31/21 04:26 PM
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Posts: 4,070
Mo.
racerx Offline
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Mo.
https://content.speedwaymotors.com/...2a075b13-5e16-41de-88e5-c0d40318cdec.jpg



SO.......how doer this type of restraint use to prevent the failure of a joint?The round end that's on the front of the bar. Does it get welded to the frontend of the ladder bar shruggy it looks to be removable(bolt)

Re: ladder bar safety restraints-ideas needed [Re: racerx] #2882522
01/31/21 06:51 PM
01/31/21 06:51 PM
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fredericksburg,va
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cudaman1969 Offline
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To keep the axel from going out the back, not much movement forward either, just containment

Re: ladder bar safety restraints-ideas needed [Re: racerx] #2882531
01/31/21 07:14 PM
01/31/21 07:14 PM
Joined: Oct 2005
Posts: 1,927
Seaford, Va
Kindafast Offline
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Seaford, Va
Originally Posted by racerx
https://content.speedwaymotors.com/...2a075b13-5e16-41de-88e5-c0d40318cdec.jpg



SO.......how doer this type of restraint use to prevent the failure of a joint?The round end that's on the front of the bar. Does it get welded to the frontend of the ladder bar shruggy it looks to be removable(bolt)


That dont prevent the failure of the joint. All it does is keep the ladder bar from moving back on the failed side.Just a safety measure to keep it from messing up a ton of stuff it the heim joint fails..


6.50 @105.26
Re: ladder bar safety restraints-ideas needed [Re: Kindafast] #2882565
01/31/21 08:21 PM
01/31/21 08:21 PM
Joined: Aug 2008
Posts: 4,070
Mo.
racerx Offline
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Thanks up

Re: ladder bar safety restraints-ideas needed [Re: W.I.N. Racing] #2882782
02/01/21 03:03 PM
02/01/21 03:03 PM
Joined: Sep 2003
Posts: 19,405
north of coder
moparx Offline OP
"Butt Crack Bob"
moparx  Offline OP
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north of coder
Originally Posted by W.I.N. racing
To continue my previous post. I feel the Alston side strap is superior to the transitional safety strap (surround) due to its ability to fit in a tighter space and strength (more material). The traditional strap may be fine in a leaf sprung/floater set up but in a coil over set up the safety strap is the only protection you have from a very very bad day. The side strap when placed properly will allow removal of the Heim joint and should not cause interference with the mounting point.
As far as replacement of joints the rule of thumb I was told (40 yrs ago) was every two seasons. This could be translated into a certain number of passes and become more important in a coil over/ladder bar set up. With regard to solid vs swivel type joint usually the solid type joints are at the axle end of the bars not the leading end. This would facilitate the side to side rotation that occurs when there is chassis roll. A solid front joint would wear quickly if used in the leading position.



my thinking of the solid versus swivel joint position as well. this thing [if it EVER gets done] will see some street time, so i'm going to replace the solid front joints with the best joints available. i like the ones with the nylon or whatever the material is used. i also have some of those super thin washers that keep grit out of the joint i will be using.
i also changed out the diagonal bar to 1" x .125 wall with mounting brackets attached to the driver's side front joint and the passenger's side rear joint. i'm using 5/8" heims on both ends. overkill for sure, but i don't want them to break. the brackets on the rear will be triangulated to the rear tubes to ensure strength.
my space is limited at the front of the bracket, as these pics shows during the chassis mock up, thus my reason for posting this question. the front mounting is hard to see. sorry for the poor quality.
beer

P6010032.JPGIM000012.JPGIM000013.JPGIM001271.JPG
Re: ladder bar safety restraints-ideas needed [Re: moparx] #2882847
02/01/21 05:55 PM
02/01/21 05:55 PM
Joined: Jan 2004
Posts: 8,265
fredericksburg,va
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cudaman1969 Offline
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fredericksburg,va
Just remember every pot hole, speed bump, corner turn, braking-acceleration goes thru those two joints. A friend has had his 46 Ford on the street for over 25 years with ladder bars so they can last I guess

Re: ladder bar safety restraints-ideas needed [Re: moparx] #2882908
02/01/21 08:42 PM
02/01/21 08:42 PM
Joined: Jun 2004
Posts: 294
Memphis TN
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Memphis TN
I agree that safety restraints and rod end maintenance are a must. I will add that every time I have seen a rear end come out from under a car it did not have the ladder bars on it. They all had 180 degree brackets on the rear end and the weld failed. I only use 360 degree brackets or split ones like pictured in this post with a strap to box them. Just something else to think about.

Re: ladder bar safety restraints-ideas needed [Re: B1HEAD_USER] #2882930
02/01/21 09:44 PM
02/01/21 09:44 PM
Joined: Nov 2009
Posts: 3,082
St. Paul , Mn.
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Given the stresses placed on this part , if you use anything less than the absolute best you are not right in the head.
As far as the restraint , either one should keep you on your tires and prevent tearing up parts.
The notion that the anti roll properties of a ladder bar with solid joints eliminates the need to use an anti roll bar..............well , yeah and nah.
The stresses will be absorbed somewhere.
And transferred into motion...........maybe in places that you don't want any.
Using an anti roll bar gives you some measure of control over those forces , and that feature alone is enough to make it worth thinking over.

Re: ladder bar safety restraints-ideas needed [Re: tubtar] #2883094
02/02/21 01:15 PM
02/02/21 01:15 PM
Joined: Sep 2003
Posts: 19,405
north of coder
moparx Offline OP
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north of coder
an anti-roll bar is definitely in the mix for this thing. not shown in my pics are the mounting places already there, but the bar size, arms and end links haven't been done yet.
the front bar mounts are 360 degree brackets, 1/4" thick, that will be boxed in with straps and tied into the chassis rail sides.
the rear brackets came as 180 degree pieces, but will be turned into 360 degree pieces tied into the shock mounts, as well as boxed in and have 1" tube bracing to the rear end tubes.
it may be a weight penalty, but will be [hopefully] a super strong mounting system.
even the upper shock mounts are boxed and made of 1/4" material in a double shear attachment.
beer

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