another front end shake..

[samgann]

I have a 1990 honda accord...I had the tranny replaced,whole frontend rebuilt..
2 rebuilt half shafts,new rotors...new tires..like from my other post...

Now my frontend shakes at about 68 Mph and also the floor board shakes too..
The steering while has a slight shake at 68 Mph after 68 Mph the sterring stops shaking but the floor board still shakes..
Today I took the tires off of the frontend of a friends honda..and put them on my car ..It did not change....So I know its not the tires.......
Anybody have an idea...

Thanks
Sam Gann

[munge]

swap your tires from front to back. if the shaking in the floorboard gets better but the steering wheel shakes more, then it's the rear tires

you may also need to have them high speed balanced. machines spin them about 30mph and sometimes it's necessary.

was the car wrecked? why the need to have so much rebuilt?

[samgann]

ya car was wrecked on the right side,car ran into the door and corner panel...
Had the door replaced & the right rear corner pannel...
The car drove alright no vibrations...Than the tranny blow a big whole in the upper part of the tranny...Replaced tranny car drove good no vibrations..
Than I noticed that one of the boots on the right side was cracked replaced axle
right side & replaced all 4 tires...about a week later I changed the left axle..
I guess about 3 weeks after all this is when the vibrations started....

Then.......I had the tires rebalanced about 6 times...still vibrates..
Took car to Honda mech.....he said there was a motor mount broke...replaced that..still vibrates...replaced upper ball joints ,tie rod ends, both half shaft again,struts...still vibrates...the last thing to change was the tranny.....
After the tranny was changed the car drove good for about 2 weeks...
than the vibration stated at about 68 Mph..and shakes the strering wheel till about 70 Mph and stops but the floor board still shakes....
Like I said I borrowed a friends front wheels today and still the same thing...
Can the back wheels cause the front to shake ??
Could wheel bearings cause this shake ??
What else could it be..????
The whole frontend has been replaced....
Thanks
Sa Gann

[munge]

ya car was wrecked on the right side,car ran into the door and corner panel...
Had the door replaced & the right rear corner pannel...
The car drove alright no vibrations...Than the tranny blow a big whole in the upper part of the tranny...Replaced tranny car drove good no vibrations..
Than I noticed that one of the boots on the right side was cracked replaced axle
right side & replaced all 4 tires...about a week later I changed the left axle..
I guess about 3 weeks after all this is when the vibrations started....

Then.......I had the tires rebalanced about 6 times...still vibrates..
Took car to Honda mech.....he said there was a motor mount broke...replaced that..still vibrates...replaced upper ball joints ,tie rod ends, both half shaft again,struts...still vibrates...the last thing to change was the tranny.....
After the tranny was changed the car drove good for about 2 weeks...
than the vibration stated at about 68 Mph..and shakes the strering wheel till about 70 Mph and stops but the floor board still shakes....
Like I said I borrowed a friends front wheels today and still the same thing...
Can the back wheels cause the front to shake ??
Could wheel bearings cause this shake ??
What else could it be..????
The whole frontend has been replaced....
Thanks
Sa Gann

shaking is almost always related to wheels or tires at those speeds. axle/tranny related vibrations usually show up ONLY during acceleration, a motor mount will show up at certain RPM, not speeds necessarily.

just swap YOUR front tires to the back and vice versa. if ANYTHING changes then you have found your problem.

are your wheels balanced on both sides or are the weights put only on the inside of the wheel (static balancing).

loose front end parts should hardly ever cause a shake.

at 68mph, it shouldn't be related to the brakes either.

it's either your wheels/tires or something related to the wreck. if your caster is off badly, then it's possible that other poor alignment values are causing some vibration BUT it's not likely.

[samgann]

weights are on both sides on some rims and some rims only one side..I cant remeber which ones...

[deevergote]

Wheel balance is a big factor. I bought a 92 DX with TERRIBLE balance... scared the bejezus out of me... Got 2 new tires, everything professionally balanced, and it was totally fixed!

If you got new axles, I have heard rumors of various replacement autoparts stores having axles that create a vibration (Advance, I believe is the most common dealer of such crap) I don't think it's a significant vibration, though.
What you describe definitely sounds like wheel balance to me.

Another thing that can cause a shake would be shocks. Blown front shocks can cause major instability in the front end. Still, you'd probably notice more than just a shake. I had just one blown shock, and it was rather frightening! The lack of control at high speed over small bumps was scary.