"Loose Rear??"

Alright I fixed the problem with my lower 4-link bars but, When I go over a bump it feels like I have rear bad bump steer on my rear axle, I'm not running shocks right now but am soon,another post,could this be the problem

Is it when you hit a bump on just one side? This could be rear steer, which is when your 4 link travels up on one side it pulls that side of the axle forward, which will make the rear steer.

I havent really payed attn to if it is just one or what, would the shocks fix it? What could I do to fix it

Well if it feels like its steering the truck its definitely not in the shocks. Its your 4 link pulling or pushing the axle during suspension compression and jounce.

heh he said jounce

Look it up you dirtpipe milkshake.

mmmmmm.....milkshake.......