1994 Acura Integra problem with rear wheel.

Yeah, I have a problem with my 94 Acura Integra rear suspension. I'm not really sure what it is but I change the shock twice now and my car still keep having the same problem. when I drive up on a driveway, my rear right wheel would left off the ground and then come back down. Is it the stabilizer bar or what is it that keep doing that everytime I go up the driveway??? please help me find the solution to this problem because I'm out of idea. thanks