FredrikSWE

So I got this LS 430 with 160K miles in February this year and then I changed this things:

Right front side wheel bearing.
BC Coilovers
Rotors + Pads
Back: Camber Arms + Traction Arm + Toe arm. (Megan racing)
Muffler delete with just 2 Magnaflow end pipes.
Spacer 3cm back.
Spacer 1.8cm front.
20" mrr Hr3. With 235/30. Mild stretch.

I did all the work by my self and couldnt find Torque spec for the camber + traction and toe arm.. So i just tighted it down very hard. If that would make vibration I dont know? I am running -6 Camber in the back maybe its not good for wheel bearings/cv joint? And yes I have a Alignment done.
For now the the magnaflow end pipes just hang loose but I hardly believe that would make this kind of vibration.

I can tell the LCA bushings are def gone. The steering is a little loose so probably complete tie rods had its time to.
Engine mount and transmission mount probably need a change to. I can see the engine move a little when reving and I definitely feel going to P to R to D.

Well however this vibration feels like it coming from the back and have a very planted feel to it. Its worst around 60 mph. You can feel it in every seat, and even in the steering wheel but very subtle. It is a "rotational" kind of vibration makes me think its some driveshaft problem? The wheels are new and balanced, and the wheels before was balanced to, but same vibration. The vibration doesn't stop if I gently press the brakes. And the vibration get worse with time if I keep a speed around 60, at least thats what I think.

So my own guess would be like some wheel bearing, cv joint or driveshaft kind of problem but I am far away from a mechanic and all this things I have changed was the first time for me. And I dont really know how to check these things either.

It would help me a lot if you shared your ideas and experience. Maybe this can be that easy is just the mounts? Or the LCA bushings?...

Thanks anyway.

FredrikSWE

First thing I will try for now is to change to my Winter tires as for I know for 100% didnt have any vibration with.

rkw77080

I would start with removing all 4 spacers and see if that helps, especially the 3cm spacers in the back.

2KHarrier

Hubcentric issue on one of the wheels perhaps?

Did you use Hubcentric rings on the wheels?

FredrikSWE

Well sheit. This is what I found now when I switched to winter tires.
This is just after 600 miles!! And I had algiment done with correct Toe and all that. Probably its getting to much pressure due to -6 camber i guess ? Small bumps and whoops you have a crack ?
This maybe the reason to the vibration that occurred cause its gone now with the winter tires. Im glad it wasn't a drive-line problem, pew.
Still dont know about the spacers, but the spacers was hubcentric to the wheelhub AND hubcentric to the rim. But with the spacers maybe the wheels got to far out making a lot of pressure on the inner tire with the camber and all making vibration cause I do remember that it did vibrate from the 1 mile with those wheel/tires, just not so much.

bloomwcjkl

That photo is why I love my 16" stock wheels and fat (phat) Toyo Celsius 225/60/16 tires. Smooth gliding over the massive potholes that are everywhere.

Jag alskar ol.

FredrikSWE

Yeah of course thats really what the LS 430 is for.

Arcturus

Yeah that's probably it

I had some nasty vibration from under my seat and it turned out that, in my haste to change to my winter tires in cold weather, I had accidentally left a small plastic hub-centric spacer on the hub and tightened the wheel over it. When I checked all the lug nuts were loose and it was about to fall off.

Usually vibration under your seat means tire or a balance problem. Glad you found out before it was too late!

2KHarrier

Wait..... That tire only has 600 miles on it? Or, it's been 600 miles since you installed those tires?

Johnhav430

I did that with my Maxima, everything was fine until I got married, ran 235/40-18's on 18x8's. My wife since she worked in Manhattan, she didn't have a car, and began using the Maxima when she began working here. After 2 sets of rims I gave up and went back to the 215/55-16 stockers, 16x6.5. Not being a real performance car anyway, everything was much better.

Since the LS430 came with the 245 18's, it pains me to put on 225 17's in the winter, but what can you do, skinny goes in the snow.

alt for norge!

FredrikSWE

It has ONLY 600 miles to it. Its a cheap *** tire but I dont know... Maybe running to much camber in back with 3+cm spacers got to much pressure on the inner part of the tire. ?
But in the same time there are guys who running -10 camber and more...

Gronemus

Well if it makes you feel any better, that's almost 1000 kilometers!

All kidding aside, what does the other rear tire look like? Does it have the same wear problems???