I bought my 722 back in the spring which someone prior to me removed the factory fuel tank and scabbed a fuel cell on the back above the radiator, which blocked ones view behind them. After much searching I was able to find a poly fuel tank that was made to go in the stock location. My question is how is the tank held secure? Are there straps or is such a snug fit that it just sits in there? I have not physically put the tank in the machine yet due to the fact that I had to fab a custom sending unit plate for it, one did not come w/ the tank and I am putting a Mercedes OM636 diesel in it so I needed both a supply and return fuel line. Thanks, Mike