Yeah, my understanding is most factory axle housings have a little bend upwards in the middle so that when they have the vehicles weight on it they flex into a flat position. So your 1.7 degrees was probably more like 3 from the factory location. But after you reinforced with the truss, all that goes out the window and you have to find your own numbers for deflection at static and max load.
@@austinlambert3994 I wish I measured it before I sent it. I will say that I did everything wrong with that truss design. The dimensioning and fabrication was adequate, but the design was flawed. I welded a landing location for the bump right to the tube. I think that created a stress concentration at the largest load point. We did have a crack in the tube. I am just hoping the axle will last one more race as I am getting two more axles to build up better. Mainly focusing on distributing the impact loads across the tube with a better truss.
@@ntdracing This might also be an issue in your bypass. I don't know what tuning tradeoffs you chose but slamming the bump stops hard enough to bend a 1 ton axle is a hard hit. It's possible that a quality shock tuner would have transferred those loads to your lower link. Just a thought.
Not totally proud of this, but while I do have the ability to drain the table, I usually just leave it in the table until it evaporates off. takes a few weeks in Colorado. Once the table is dry, I will pick out the big pieces and scrape the rest out maybe vacuum some of the little pieces. After owing it for 4 years, I spend less time keeping it pretty. I do clean the moving parts with WD40 and Oil to make sure those parts keep working smoothly...the table just works.
Informative video. Physics does indeed work. Thanks! What is the spring weight of that complete axel assembly? Any thoughts of going to independent suspension in the rear?
@@Phsteddie it is super heavy. Probably near 800lbs with truss and 40in tires. I do focus on budget builds and hope to fix this with a better design. Going with independent suspension would definitely increase cost and I think decrease durability for a questionable gain in off-roading performance.
@ IRS will definitely cost more and lot more suspension geometry/dynamics and U joints to deal with. I get ya. But from the videos and your military experience, I get that you want to run with the big dogs. That takes major coin. What about that class where the VW’s or “ semi stock” run? It seems that those guys have just as much fun with a wee bit less headaches. Slower speeds, of course. Racing is tough, man. I do enjoy your build videos. Thnx.
@@westleyworley1731 I have a ground to the table. It seems to work well enough. Sometime I will ground to the piece, but I find that with heavy pieced grounding to the table is ok.
A 100 different ways to skin a cat. As long as it's fairly straight and strong, it will be fine, until it's not. I think I would have lagged down some plates, chained down the ends of the axle, and bottle jacked the center section. Just to get it as straight as possible and hold tension while tacking. We had a guy at work who could straighten things with a torch and wet rag. That's just not me, to much feel and guess work
@@bobbarker3781 I thought about that. Was going to make something that would allow me to apply the loads to bend it, but I decided to chance it with science.
Just spin the center section and measure across the top of the tires. You can get them perfect.
Yeah, my understanding is most factory axle housings have a little bend upwards in the middle so that when they have the vehicles weight on it they flex into a flat position.
So your 1.7 degrees was probably more like 3 from the factory location.
But after you reinforced with the truss, all that goes out the window and you have to find your own numbers for deflection at static and max load.
@@austinlambert3994 I wish I measured it before I sent it. I will say that I did everything wrong with that truss design. The dimensioning and fabrication was adequate, but the design was flawed. I welded a landing location for the bump right to the tube. I think that created a stress concentration at the largest load point. We did have a crack in the tube. I am just hoping the axle will last one more race as I am getting two more axles to build up better. Mainly focusing on distributing the impact loads across the tube with a better truss.
@@ntdracing This might also be an issue in your bypass. I don't know what tuning tradeoffs you chose but slamming the bump stops hard enough to bend a 1 ton axle is a hard hit.
It's possible that a quality shock tuner would have transferred those loads to your lower link.
Just a thought.
Don't forget to adjust the bump stop for the new axle height.
@@mattvelardes8072 that will be a bunch of fabrication…I am going to see if it is ok with 1in less travel.
Random unrelated question. How do you dispose of the water and slag in the xfire. Not drain it, but actually get rid of it.
Not totally proud of this, but while I do have the ability to drain the table, I usually just leave it in the table until it evaporates off. takes a few weeks in Colorado. Once the table is dry, I will pick out the big pieces and scrape the rest out maybe vacuum some of the little pieces. After owing it for 4 years, I spend less time keeping it pretty. I do clean the moving parts with WD40 and Oil to make sure those parts keep working smoothly...the table just works.
Informative video. Physics does indeed work. Thanks!
What is the spring weight of that complete axel assembly? Any thoughts of going to independent suspension in the rear?
@@Phsteddie it is super heavy. Probably near 800lbs with truss and 40in tires. I do focus on budget builds and hope to fix this with a better design. Going with independent suspension would definitely increase cost and I think decrease durability for a questionable gain in off-roading performance.
@ IRS will definitely cost more and lot more suspension geometry/dynamics and U joints to deal with. I get ya. But from the videos and your military experience, I get that you want to run with the big dogs. That takes major coin. What about that class where the VW’s or “ semi stock” run? It seems that those guys have just as much fun with a wee bit less headaches. Slower speeds, of course. Racing is tough, man.
I do enjoy your build videos. Thnx.
@ building one right now. Making a few videos. “The Trooper” will be ready for the Mint 400.
And if it doesn't work you'll never see this video 😂
Do you not have to ground the work piece with a ground clamp on the XR?
@@westleyworley1731 I have a ground to the table. It seems to work well enough. Sometime I will ground to the piece, but I find that with heavy pieced grounding to the table is ok.
A 100 different ways to skin a cat. As long as it's fairly straight and strong, it will be fine, until it's not. I think I would have lagged down some plates, chained down the ends of the axle, and bottle jacked the center section. Just to get it as straight as possible and hold tension while tacking. We had a guy at work who could straighten things with a torch and wet rag. That's just not me, to much feel and guess work
@@bobbarker3781 I thought about that. Was going to make something that would allow me to apply the loads to bend it, but I decided to chance it with science.