Tow Dollies & Axle Mounts designed for Every Type of Tow Truck Deck. Which is right for your Wrecker? TrucknTow.com offers many types of tow dollies, axle mounts, and rail brackets for your tow truck or shop. Whether you need a self loading speed dolly or are looking to have more room on the deck of your wrecker, we have just the solution for you. Choose from Collins, Speed Dolly and many tow dollie replacement parts and components.