I purchased a standard 2" receiver from the local weld shop, did a little creative cutting & welding and its a done deal. Time to remove the trailer tongue is about 1 minute. The dolly utilizes the spare tire that came with the TD. I am a fan of multi-purpose things. I figured that the spare located under the bed (hopefully) will never be needed and is taking up usable space so I cam up with the dolly idea. The dolly also comes apart and the pieces fit inside each other (see photo) so it can stow in an inconspicuous place. Time to assemble the dolly and spare is about 5 minutes. Oh....yes, the propane tank was full. I welded close to many propane tanks over the years and guess I'm lucky?