suspension on 98 328

i need to replace my rear bushings but i'm not sure which ones to order. if someone has a diagram of the suspension or knows where to get one i would appreciate taking a look at it. I'm not sure how many options i have for rear bushings (could be control arm bushings i'm not sure) but if anybody knows which ones i would likely need to order let me know. Thanks for any help you can give me.

There's a number of bushings and rubber mounts, I'd ask which but your not sure.....why do you need to replace them [it] ??...................... .jeffb.

i think it is the lower control arm bushing (lowest and most forward bushing in the rear). its hard to tell because i don't have a diagram to go by or the dimension of the bushings. i should recieve the ones i ordered today and will find out if they are correct. i just wasn't sure if they were the right ones.
i need new bushings because my old ones are worn out and the car is able to shift side to side on the suspension.
thanks for the response