Rear Penger Wheel Wobbles From All Speeds?

I have a 1976 Silverado and last week I was involved in a small accident due to road conditions. I hit the curb with my front driver tire then the front penger tire hit then after that my rear penger tire hit the curb as well I instantly blew both front tires and my rear penger tire had a bent rim so as soon as I got some new wheels on, my brother told me the rear penger tire wobbled alot and before it would never wobble, also it's not the tire or rim seeing as i just bought 4 new rims and tires. What could I have broken or damaged hitting the curb with the side of the wheel? Thanks for all your answers in advance!