took the camaro out to stretch her legs today. noticed a pretty harsh vibration fro about 72-80. thinking the driveshaft. any thoughts?

 

Have the wheels spin balanced, and INSIST they spin them up to 70mph. Most shops won't do it - they look at you like you'll never go that fast - then I ask them how fast their wife drives on the 4-lane - then they giggle and say "I see your point", and do it. They usually only spin to about 35mph, which is useless - I always ,ake them spin it to 70mph, or I go on down the road.

If that doesn't work, then maybe look into DS.

 

I would check the driveline. Driveshaft, u-joints and yokes being the first on my list.

 

I had the same problem. I put the old girl up ona lift, and grabbed drive shaft and gave her a shake. Lo and behold, it moved, but not the U-joint. The entire yolk moved. The original limited slip diff is still in there (not for long though).......

 

had this problem also, solution? my tranny mount!