Clutches on right hand turns, not left.

I just started driving this car after owning it for 3 years. I get side tracked a lot. So today I took it on the mountain highway and drove 60+ mph for the first time. The problem has developed...

Not only does it "clutch" going 50mph on a 45mph corner, it started grinding/knocking. Theres also a very slight vibration to it. I stopped and checked if anything was falling off, then limped home.

I can hear it knocking/vibrating while idle too. In Park and Neutral. Not very loud though.

My driver side motor mount looks horrible. I think it may be part of the problem. I'll check to see if the tranny is loose. I've found alot of botched repairs on this car from the PO.