my car shakes/vibrates when doing about 35-40 mph. before and after that everything is ok. i took off all my wheels and looked at the tires and there was no unusual wear. what problem do i have ?

 

wheel balance. probably.

 

^^Agreed...

 

It's most likely not a wheel/tire problem if it only happens at that certain speed. Could be an axle or maybe even your tranny.

 

Bad ball-joints.. I'm also getting very bad vibrations @ 45mph+ for being slammed. You'll need to get new ball-joints a.k.a front camber kit. Do not get OEM replacement ones.. #1. They suck. #2. They'll just re-wear themselves out. #3. They suck.

 

i have a new tranny and i have a front camber kit so i dont think the balljoints are needing replacement........what else could it be ? just a balance problem ?

 

I would also go with balance. Did you check tire pressure? Tire tread?

 

yeah, start with the cheaper things..as mentioned air pressure, tire balance...

does it go away after driving it for a while?

 

I had the same problem your having and its not your tires or your balance, but do check them out first. Most likey its your drive shaft (The axle). I had both of them replaced and i have a nice smooth ride again. Look for aftermarket axle, uless you want to pay 1700 for brand new ones. This sucks but replace it before your tranny goes next. Good Luck to you. Biggie B

 

Theres no problem man, its the gift of god in your car. He did that so when you have a female with you it would bring her pleasure. When alone either go 20 or 50. On a serious note get those wheels balance and youll be happy.

 

I think it's axle(s). Seems like most people on here that describe the shake at 35-45 end up with axles. Make sure you get NEW as opposed to reman. Good new axles are available aftermarket [places like napa, etc.] for a hundred or less.

 

If you have the alloy wheels make sure that the wheels are balanced on both sides of the wheel, ie. inside and outside.