Bad Vibrations! Need Help!
 

My car has a problem where the aluminum driveshaft is rubbing in the driveshaft tunnel on hard acceleration in first and second gears. I haven't changed anything on my suspension for two years before this happened. It is lowered with Eibachs but not extreme at all.

-To try to cure this, I have added these parts to the car with no cure of the driveshaft problem- KYB shocks,struts and quads and FR upper rear contol arms.

I've noticed what appears to be a crack in the passenger side motor mount but its hard to tell. Could that be the problem? I'm reluctant to believe that it is..

I'm at a loss here guys.. any ideas??

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formerly 96cobra89lx306

(96Cobra/softtop-3.73,almdrvsht,fancontrl,steeda sbfrmes+shifter,eibachspgs,KYB's,FR-upper arms,Saleen copy-polished 18's,pulleys,Bassani X pipe(gutted),C&L 80mm
Cobra DYNO 301rwhp horsepower before gutting the X pipe
93 Ford Probe Gt(slower but turns)

Check the motor mounts and tranny mounts. When I was a kid with a new 78 F-150 with a barely streetable 460, I had to go to solid motor mounts due to the high torque numbers she was putting out. I got the same thing you did.

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LaserRed 2000 GT 5spd, Steeda Tri-Ax, K&N sans silencer
"Louise"

I keep hearing about how crappy the Eibach spings are too but I don't see any sagging going on. The tranny mount looks ok too. I guess I'll try to replace the motor mounts but I just don't want to keep spending $ without actually fixing the problem. The thing that sucks with a problem like this is you can't just look at it and see the problem so you sort of have to experiment. http://www.mustangworks.com/interact...oard/frown.gif