Bad Vibrations-MKII question

[mkiiSupraMan18]

Well, I've decided to start taking a better look at the ol Supra and I've decided again that I have no idea what the problem is.

here's the background story:
82 Supra 6mge 5sp, ST springs (2" drop), Monroe shocks, Riken 14" w/ new tires, camber mod, basically all I can think that would make any difference. 0 shake.

Last winter I installed new shocks, I bought a set of 16's off ebay w/ brand new tires mounted/balanced (later rebalanced to double check), camber mod still there, added poly bushings andco front/rear sway bars, cusco front/rear strut bars, I also replaced the seals of the Diff (which had been leaking). Now, I've got a WICKED vibration/shake on acceleration and it kind of levels off once I get up to speed but is still quite pronounced.

I have installed the old wheels and tires and this made 0 difference.

I am thinking about going to a 1piece driveshaft to eliminate that as a problem now and in the future if I decide to swap an engine in.

My question, besides what else could be going on, is if I removed both the rear halfshafts, jacked the car up and put it in gear, would I feel the vibration if it was indeed the driveshaft? This is the only thing that I can think to do.

I have jacked the car up and let the car idle in 1st gear to see if I could see anything moving/loose or whatever but w/ no luck.

The car sat all summer because I recently moved out of my parents house (graduated) and moved to 'the big city' and am an hour away. I am building my first home and i really don't feel like driving the car up there the way it currently is.

So, Cliffs:
I have a vibration after I installed new wheels/tires, poly bushings, and strut/sway bars. Wheels have been ruled out. What else could it be? Am I just feeling something that has always been there but is noticeable now because the car is 'tighter'?
__________________

 

[Quin]

I'll drive it up there for you

Swap back to the stock bushings, then lose the strut bars. If it's still doing it after that, light it on fire

 

[themadhatter]

I really don't know anything about mk2's or even if they have floater rearends but Check the axel shafts maybe ones bent

 

[tlo86]

errr engine mounts maybe? maybe you gained 300 horsepower and didnt know it and the downpipe is shaking the car

 

[mkiiSupraMan18]

I really don't know anything about mk2's or even if they have floater rearends but Check the axel shafts maybe ones bent

That is a possibility. maybe while it was in the shed something fell on it.

 

[Slow66]

When you say you put in poly bushings, i'm assuming you did all 4 corners, both upper and lower a-arms?

 

[mkiiSupraMan18]

Uppers dont exist :icon_razz

I did all for corners, every bushing I could get, plus two new diff hanger bushings that were the last in the country. :icon_bigg

I will look into the bent axle though.

 

[Slow66]

Uppers dont exist :icon_razz

I did all for corners, every bushing I could get, plus two new diff hanger bushings that were the last in the country. :icon_bigg

I will look into the bent axle though.

Oops...

Did you get the car realigned after the bushings?

 

[mkiiSupraMan18]

^ yessir, it's dead on, two shops agreed w/ this.

 

[Joel W.]

Does your new/old wheels have hubcentric rings installed to center the wheels to the hub if needed??


http://www.tradeunion.com/ToplineProducts/subs/hubcentric.html

Some wheels rely on the lug studs to center the wheels on the hubs.. (lugcentric).. This will cause a nasty vibration...

I bet that is it..