Wildman's TJ is getting a face lift

[jjvw]

The axle only gives input 0nce it begins to move. I've never mentioned the rod or link . I'm talking clocking of the arm only. Moving the link end closer or further from the anchor point is the leverage adjustment. I think we agree.

I think we do. There is a whole bunch of misinformed hand wringing elsewhere about what the axle mounts do. They are only anchor points for the links. They go where they fit best. Nothing more.

And like the front and barring any packaging concerns, the arms ought to be level at the midpoint of the shock travel.

 

[Wildman]

I think we do. There is a whole bunch of misinformed hand wringing elsewhere about what the axle mounts do. They are only anchor points for the links. They go where they fit best. Nothing more.

And like the front and barring any packaging concerns, the arms ought to be level at the midpoint of the shock travel.

On the rear TJ AR the axle brackets are the adjustment in many cases as the arm only has one mounting hole.

https://1244669.secure.netsuite.com/c.1244669/Documents/TJLJ/CE-9900TJR.pdf

In my case becasue of where the arms are mounting in front of the axle my only good option was to mount a bracket on top of the axle. I couldn't mount the AR behind the axle like they suggest since I had moved my axle towards the rear so much.

 

[jjvw]

On the rear TJ AR the axle brackets are the adjustment in many cases as the arm only has one mounting hole.

https://1244669.secure.netsuite.com/c.1244669/Documents/TJLJ/CE-9900TJR.pdf
View attachment 311585


In my case becasue of where the arms are mounting in front of the axle my only good option was to mount a bracket on top of the axle. I couldn't mount the AR behind the axle like they suggest since I had moved my axle towards the rear so much.

On the TJ rear Antirock, there is no rate adjustment, unless you drill new holes in the arm. The universal rear Antirock has several rate adjustment holes already drilled in the arm.

Again, the axle mount is not where the rear rate adjustment happens.

 

[Lou]

Ugh…

 

[jjvw]

Ugh…

This is why.

 

[B00mb00m]

At this point Rick, the out of box solutions are not going to be a solution. You might have to drill holes in the arm or shorten or arms squeeze in behind axel, you got to tack and cycle and keep changing until it works.

You got to keep the bolt off the tire and the airbag. If you have to move it forward to do so then move it. Your rate may end up being too high and you'll have to address it then. Also be sure you can't pass it somewhere to the rear or add spacers like you had. Find the right balance maybe move attach point a little forward shorten arm and add spacers.

 

[Wildman]

On the TJ rear Antirock, there is no rate adjustment, unless you drill new holes in the arm. The universal rear Antirock has several rate adjustment holes already drilled in the arm.

Again, the axle mount is not where the rear rate adjustment happens.

Then what are the three holes in the lower mount bracket for? And why do the directions say this?

You’ll want the link straight up and down when viewed from the back of the vehicle, and you’ll want the tab to be pointing straight out the back - so the 3 holes in the tab would be level.

Since you seem to know where can this information be found that the rear has no rate adjustment? Not arguing just curious where this info is at?

At this point Rick, the out of box solutions are not going to be a solution. You might have to drill holes in the arm or shorten or arms squeeze in behind axel, you got to tack and cycle and keep changing until it works.

Yes

 

[B00mb00m]

Then what are the three holes in the lower mount bracket for? And why do the directions say this?



Since you seem to know where can this information be found that the rear has no rate adjustment? Not arguing just curious where this info is at?



Yes

The bottom holes effect that angle of the dangle of your end link. They're to be used to adjust the end link angle and arm angle though it does also influence the effective spring rate to some point it's not a direct moment arm change like drilling s hole in the arm is.

I added some to my previous post also maybe help with ideas.

 

[Mike_H]

Wow, whipping out free body diagram that’s a blast from the past. Brought me back to college!


The position of the axle mount does not change the direction, or the amount of force the axle is placing on the torsion bar. It’s movement path is fixed. Sure, it places more stress on the link to have it at an angle, but the amount of force and direction going through the other end of the link does not change. The only variable you can change to make it stiffer or softer, is your leverage on the bar which is done by the adjustment holes on the torsion bar itself.

Edit: free body diagram was bad but I stand the overall point

Well, if you know, you know!

 

[Wildman]

The bottom holes effect that angle of the dangle of your end link. They're to be used to adjust the end link angle and arm angle though it does also influence the effective spring rate to some point it's not a direct moment arm change like drilling s hole in the arm is.

I added some to my previous post also maybe help with ideas.

OK Thanks

 

[jjvw]

Then what are the three holes in the lower mount bracket for? And why do the directions say this?



Since you seem to know where can this information be found that the rear has no rate adjustment? Not arguing just curious where this info is at?



Yes

Look at your front sway bar. The rear works exactly the same way, minus the dual rate SwayLoc trickery.

The axle mounts go where they fit. The holes in the axle mounts help you put the links where they need to go.

 

[DaveF]

The bottom holes effect that angle of the dangle of your end link.

My dad always told me the angle of the dangle was proportionate to the mass of the ass... but he might not have been talking about a Jeep I guess....

 

[B00mb00m]

My dad always told me the angle of the dangle was proportionate to the mass of the ass... but he might not have been talking about a Jeep I guess....

Your dad was a smart guy

 

[Wildman]

I had always heard it was the angle of the dangle plus the heat of the meat equal to the mass of the ass.

 

[Apparition]

My dad always told me the angle of the dangle was proportionate to the mass of the ass... but he might not have been talking about a Jeep I guess....

I always thought it was related to the heat in the meat.

@Wildman beat me

 

[jesseshoots]

But how does all of this dangle angle, meat heat, and ass mass relate to the perceived stiffness of the rod?

Edit: thread officially derailed

 

[Apparition]

But how does all of this dangle angle, meat heat, and ass mass relate to the perceived stiffness of the rod?

Sometimes you've gotta grab the bull by the horn and find out for yourself.

 

[Wildman]

But how does all of this dangle angle, meat heat, and ass mass relate to the perceived stiffness of the rod?

I think it relates to the excitement of the moment as to how stiff the rod is.

Back to the regularly scheduled program... I'll play with some different lengths of links and see if I can get something that works. Thread-all and tack welds will be my friend.

 

[Blackjack]

Maybe we need to call on Leverman to answer these questions.

 

[someguysjeep]

the arms ought to be level at the midpoint of the shock travel.

this is what i was trying to get at............... would tilting the arm 3" up or down from a level rested position have any more than a minute effect? does the arm give a rats as if it has some tilt either way, since no action occurs until axle movement does. as long as that sucker can't flip.

3" up or down could get him just over or just under the contact spot he's in currently.