Towing Older Vehicles

[Towing Older Vehicles]

How do you access old towable vehicles lists? Current lists only back to 1999, I need info on 1994 GMC Suburban.

Thanks

[Towing]

I recently sold my jeep and ordered a new one. In the interim I would like to tow my 1994 GMC 2500 Suburban 4 wheel drive w/ automatic. Does anyone know if it can be done 4 wheels down with the transmission and transfer case in neutral and steering wheel unlocked?

Thanks