i hit a curb very badly today destroying both righ side rims
i have broken the bar that connects the car to the rear end
what is this part called?

 

wow what a hit . The part is called the lower trailing arm JEG'S sells them for about 250 for hotchkis but you can finde some other ones cheeper .

 

this is the part

 

That would be the one . It's a nice up grade too .

 

is it possible to drive with a broken one?
can i pick one up at napa or some where cheap
BTW im stuckin in jacksonville fl till i hopefly find a junk yard in the morning

 

Depends on how bad it's broken. If it isn't broke right in half you might be ok. If it's bent a fair bit then your rear alignment will be off wearing your tires quickly.

There is a good chance you bent the axle too. I helped a guy change an axle bout a year ago. Hit a curb and he wrecked only the rims/tires and axle. Nothing else. You must have taken a harder hit than that.

Support the rear with jackstands, run the car in drive and watch to see if the wheels are wobbling a bit. If a wheel wobbles then you know you have a bent axle.