1989 Chevy Blazer ?\'s 350 V8 4X4 Auto Style is listed as V10 (Utility?) Just bought it, rusty but runs great...Daily driver, but would also like to tow a 20ft. fiberglass bass boat. It has a tow package, but no hitch/ball. Anything I should know before I buy the hitch? Size, brand, etc... Any info would be greatly appreciated, towing or general info about the Blazer. This is my first Blazer so don't know too much. Thanks!! Jay.