I'm a complete novice about towing. I have H&R springs/Tockicos shocks/Hellwig bars/Hotchkiss arms on my 96'9C1 with a 285/40 17x9.5 set-up. I want to pull a tandem-wheel 2-bike motorcycle trailer with it. The gross weight of the trailer will include the two bikes at ~540lbs ea. and the trailer. Has anyone pulled that kind of weight or set-up on a similarly lowered/equiped Caprice/Impala, and if so, what did you do to keep it managable? Is it even possible? I was thinking air-bag rear spring assist.