HI, I recently purchased a Lance 1025 slide-on for my 1998 chev 3500 1 ton 8ft pickup. Believe it or not it did not come with a rear sway bar! I installed air lift bags in the rear. It handles o.k. I guess but would heavy duty shocks and a sway bar help handling in any way. If so what make and models? Thank you in advance. I'm newbie and want to be safe.