loud pop under hard corering rear end is lose now, NOT rear sway bar links...
 

just like it says i was doing some mountain driving and heard a loud pop/snap sound and now when i hit bumps or switch lanes at 60+ the rear end feels super squirrly.
what so you guys think? i crawled under it and cant see anything obvious but i was really only looking at the sway bar.
bushings i should check anything thats really common that fits this discription? the rear shocks/springs are cheap gas o matics with like 15k on them sho they should be ok.

What about when taking a turn? is there any abnormal squeeling etc., or rear kick. I haven't spent too much time checking out the rear suspension yet, but get the car in the air and start by moving the tire in and out, then do a thorough check of everything

Check the rear diff mount bushings. Maybe you tore one. When I broke mine there was a loud pop then a loud bang... halfshaft bearing exploded cause it couldn't flex the way the diff was trying to make it.