How To Make An Anti-Wrap Bar
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- Опубліковано 28 сер 2024
- In this video I've tried to explain a bit about axle wrap and what I've done to solve the problem. You can get more comprehensive details if you're thinking of making your own by following the link below:
bit.ly/1xgxqKr
Here's the other UA-cam video I mentioned which demonstrates the problem quite well, again, this is not my truck:
• Does it need a anti-wr...
I had wrap issues with my samurai also. I would break u-joints on steep climbs fairly often. I finally installed a track bar from breeze industries out of Canada and it cured it. Their bar works awesome. No more broken u-joints and much better traction and control on the steep sections of trail.
+Joey Harlow Nice, I've definitely found mine to be an improvement. At some point I might reduce the amount of rearward movement allowed by the shackle but it's still going strong since I fitted in.
the moving shackle at the front negates the purpose of the unit im afraid. That still allows for alot of movement, and pinion angle changing. Solid mount point on both frames.....1 bar each side, the same length as drive shaft as to not impend on the axle arc, will work much better
If you look at about 4.55 I say how the shackle/tether is designed to *limit* axle wrap - I do not say it's designed to eliminate it. If you look at about 1.18 I explain the problems associated with wrap; damage to UJs and leaf springs. Before I fitted this wrap bar I was snapping a rear leaf roughly once every 6 months or so, I was also fairly regularly having to replace the UJ shown in the video. I actually sold the vehicle a while ago now but 3.5 years after fitting the bar I still had the same set of leaves and the same UJ fitted because the anti wrap bar works as designed. It limits wrap enough to prevent the damage to the UJ and reduces some of the fatigue on the leaves. Also, when I have wound the axle up in difficult terrain, you can very clearly see the shackle and tether working exactly as they should - the clearly stop the axle from rotating to the point where the UJ binds and they clearly limit the stress on the springs because I haven't snapped any leaves since fitting this. When I first made this kit, I thought about fitting an adjustable turnbuckle into the tether section. This would have allowed me to fine tune the permissible amount of axle rotation before the tether maxed out on the shackle. I was essentially just approximating what would be a permissible amount to limit the fatigue of the springs, although I could work out what movement constraints would be required to prevent damage to the UJ. I figured I would run the kit for a bit and if I carried on breaking things then I'd either add the turnbuckle to adjust the permissible wrap, or potentially do away with the shackle. It turns out that neither of those things were necessary as nothing broke in 3.5 years of use. If I were to make the kit again, I think I would probably go with the adjustable turnbuckle over the shackle, however the design in this video worked well enough to mean no more breakages - which was what it was designed for.
What an easy way to tell if I have axle wrap? I have a 5speed xj cherokee and one of the leaf spring clamps blew off. There is a clank at low gears high torque. I feel like there is a rock motion after releasing of throttle on rear. Just wondering what are some easy diagnosis by yourself? Thanks
I found there was often quite a loud clank associated with it happening. For me the main symptom was the rear leaf springs snapping all the time though. The SJ springs are very narrow and tend to fatigue quite easily but I don't know what they're like on your vehicle. Once I made this wrap bar I never snapped another set of springs until I ultimately sold it. The other problem is that everything clanks on a 4x4 vehicle so it's quite hard to tell whether the clank is coming from the springs wrapping or some other part of the suspension. If you get a friend to slowly drive your vehicle out of a deep rutt or over an obstacle then you might well be able to see the rear springs starting to bend into an S shape.
How not to make an anti-wrap bar. As shown it is doing very little if anything. The bars on the axle turn the axle wrap into mostly horizontal motion. The shackle on the frame is set to be able to allow that horizontal motion when it should be set at an angle to not allow horizontal motion. The design would function better if the link was shortened so that the shackle was horizontal.
Nice
Driveshaft!
all you do is solid mount the shackle end
Andy Corbett again, read the comments below.
already did
Andy Corbett well then I think it's you that doesn't understand.
i understand it still nakers springs
i dont think you understand the point that doesnt work at all
Andy Corbett This has already been addressed several comments below.
you cant be serious wtf is this man !. i can clearly see your axle is still wrapping !!!!!!!!!!!!!!!!!! you design has not done anything lol
Maybe you didn't watch the video properly? If you look at about 4.55 I say how the shackle/tether is designed to *limit* axle wrap - I do not say it's designed to *eliminate it.* If you look at about 1.18 I explain the problems associated with wrap; damage to UJs and leaf springs. Before I fitted this wrap bar I was snapping a rear leaf roughly once every 6 months or so, I was also fairly regularly having to replace the UJ shown in the video. At the time of this comment, the video has been up for almost 3 years and I still have the same set of leaves and the same UJ fitted, why? Because the anti wrap bar works exactly as designed. It *limits* wrap enough to prevent the damage to the UJ and leaves. Also, when I have wound the axle up in difficult terrain, you can very clearly see the shackle and tether working exactly as they should - the clearly stop the axle from rotating to the point where the UJ binds and they clearly limit the stress on the springs because I haven't snapped any leaves since fitting this. When I first made this kit, I thought about fitting an adjustable turnbuckle into the tether section. This would have allowed me to fine tune the permissible amount of axle rotation before the tether maxed out on the shackle. I was essentially just approximating what would be a permissible amount to limit the fatigue of the springs, although I could work out what movement constraints would be required to prevent damage to the UJ. I figured I would run the kit for a bit and if I carried on breaking things then I'd either add the turnbuckle to adjust the permissible wrap, or potentially do away with the shackle. It turns out that neither of those things have been necessary as nothing has broken in 3 years of use.