The problem is that when I'm going down the road, not so bad when I'm going slow, at highway speeds there is a really bad shacking coming from my car. I think it's the front driver side axel. I've had problems from this for a long time, or I think it's the axel anyway. A few months ago I replaced the transmission with a ls transmission and I replaced the driver side axel while I was into it. Ever since then I've had a bad rumbling and horrible noise when I turn right or go through a dip.
Well I replaced the steering rack Tuesday, hoping that would fix it but it needed it anyway. Well that didn't fix it and the vibration is getting worse, but it steers alot better. I'm thinking that maybe the axel is no longer straight and it's just getting worse. Any help would be greatly appreciated.

 

wheel lug nuts tightened all the way? and is the wheel all the way on?? hehe, something i did once thinking it was the axle...lugs just came loose and wheel was knockin...not safe at all =/

 

it could be all kinds of thing's
it could be the rim or it could be warp rotter your just have to trace it back
good luck

 

Well I just got the car aligned and balanced yesterday so that's not it. It was doing it before I got it aligned. I'm not sure what's going on.

 

could be the engine mounts, messed up suspension........

 

Well it didn't start doing in until last week when I was on the interstate and I got over in the slow lane then it started shaking bad. I thought I had just thrown a weight off but apperntly that isn't it and it's getting worse. I just figured that something in the axle that was making so much noise had broke, like the knuckle was breaking.

 

this is funny because this exact same thing happened to me and i had to fix it today because of my axels falling out of this tranny and landing on the floor barely clearing my oil pan. Anyways back to your problem its your tier rods what happens is when a car is lowered or the suspension is altered in the wrong way is will cause stress on different parts of your car that didnt have much stress at all to begin with. So your alignment will get thrown off wich will cause more pressure on your axels in hand will put more pressure on your tier rods and will cause your car to shake when reducing speed. I am almost positive that this is your problem once i replaced my axel and tier rods and raised my car back to the stock height its running better than when i bought it. Let me know what happens.

 

did you put Fix-A-Flat or similar in your tire(s)?
an out-of-balance tire/wheel will exhibit symptoms like you described.
i put a couple cans of Fix-A-Flat in a rear tire on my old Integra and it had horrible shaking at highway speeds. i took it to a tire shop and they dumped the crap out and put a plug in the tire and guess what, no more shaking.

 

Well the steering rack and tie rods are brand new, just put em on tuesday and got it aligned and balanced wed. I'm thinking its the axel cause ever since i put it in a horrible shaking and grumbling sound when i turn right or go through dips. has anyone else had this problem?
And like i said before it start the bad shaking until last week.

 

Well then there is only one other thing i could think of...your axels but are your brake pads bad? because there is a minor shake when de-celerating but yet i got new axles and tier rods and sure enough the pads are bad and even my father who is a car dealer told me that is the problem for the minor shaking so try your axels and brake pads and if its not that then damn bro u gotta huge problem

 

Ok, I sorta figured that's what it was. I'm gonna check the breaks this weekend and see if that's the problem. Thanks for the help.