I agree. A "lever" requires a fulcrum to pivot on for a mechanical advantage to be gained. The end links do not have a fulcrum.

 

Every now and again we get a one hit wonder that replies about AK's beginning to this thread. If you guys would scroll down a couple of replies, he answered the question....

AND, if you'd read further into the thread, you would know that his concerns were warranted because AK indeed had to replace the 5.4 in this truck.

It can be a good motor, no doubt about it. But when you are buying one used, the 4.6 seems to handle neglect easier than the 5.4 does.

 

This is a problem.... a HUGE problem. I don't trust a single damn news source at all anymore. I don't care who it is... CNN, Fox, MSNBC, NYT.... they all have hidden agendas to sway the way we think. Then you've got the people getting their news and political advice from celebrities and musicians. LOL... Alice Cooper said something a few years back that really stuck with me... he said "If you're listening to a rock star in order to get your information on who to vote for, you're a bigger moron than they are."

As much as I like FB, it is probably the biggest problem. Absolutely all politics and conspiracy theories should be disallowed from FB. Meme's, sayings, opinions... I've often considered killing FB because of this.

I had to talk several neighbors off a cliff in my old neighborhood when Verizon put in a new tower about 1/4 mile from us. I have a friend that works on this stuff every single day (and has done so for about 10 years)... he is constantly climbing on communications towers. It is safe. It has no way of injecting you with a virus, LOL.

We live in some uneasy times right now, I agree.... but some of the stuff people conjure up in their heads is ridiculous.

 

I'm looking to add a small LED light strip under the hood of the TLX. ($36,000 car and they couldn't include a $5.00 under-hood light?)
Other than sourcing something OEM from the U-Pull-It, do any of you thinkers have a better idea than THIS to trigger it?

..

 

If you dont mind fabricating a little bracket, or drilling a hole, the simplest way would be to just use a plunger switch.

 

I considered this, but there's no good place to mount a bracket, and there's plastic trim over all the framework where I'd normally mount one. Still an option, though, you're right. I could probably get the plastic out of the way pretty easily to have it go around the pin switch.

..

 

Discuss? OK. Put a pipe wrench on your sway bar and twist it. See if there is a fulcrum on the ends of the links. A longer link will have more of a fulcrum. When level, you are absolutely correct. The end links create the relationship between the springs and the sway bar. Since this involves trig and not geometry, inverse or reciprocal has a very different meaning of opposites. This effect is outlined in what I posted, the compression and expansion of the springs are not equal. This is why the effect shows up in body roll but not the suspension. I've never seen a sway bar go bad from use except at the link mounting point from the fulcrum effect.

 

Again, this is way further than I needed this to go. My question was simple. I don't care to design a car. I'll go back and delete my question if that would help.

 

What being perpendicular effects involves what's called Degrees of Freedom (DOF). Basically the ability to move, (very basic). The end link, T1 and T2 is called a Primitive Perpendicular Joint. The constraints on the DOF of this joint follows, Transitional Constraints=0, Rotational Constraints=1, Coupled Constraints=0, Total Constraints=1. In a suspension, to compare constraint factors to a fixed joint it's 6 to 1. To have the maximum constraint effect the link would need to be eliminated. But still, 6 is not infinity.

""The anti-roll bar rate cS,φ on reciprocal springing, which is important for reducing roll inclination, related to both wheels of an axle, depends, for independent wheel suspensions, on the ratio of the wheel joint G to the attachment point T2 on the suspension link or on rigid axles of distances br and bs (Fig. 1.23). With the rate cs on the leg ends T1 of the anti-roll bar, the rate, related to the centre of tyre contact, becomes

Fig. 5.22. The anti-roll bar is mounted to pivot with its centre-part 1 in the points L. The connection between leg ends T1, and wishbones (points T2) is made by an intermediate rod. The ratio is = b/a is much greater than one and therefore increases the forces in the suspension links and their mountings.
cS,φ=cS/i2φ and
iS=b/aorbr/bs ""

If you have the information you can figure the effect the length of the link will have.

 

I don't believe we are discussing your car anymore but I'll quit this if it will make you happy.