This worked pretty good for me going to a pd. I pulled the front 2 up against the front bulkhead/bar thingy, strapped the wheels together on the front and back and then I put a strap over the tunnel cover. I then take 2 more straps and strap the passenger side tractor to the driver side rail and driver side tractor to the passenger side rail from the cat 0 hitch. The rear tractor is then pulled on and I put a chain around the front axle and back the tractor up to snug up the chain. I then put a clevis in the rear hitch plate and use a binder to tighten but no go crazy. I feel this way if I have to slam on the brakes the hitch plate and clevis should keep the rear tractor from going forward. I like using chains to secure my stuff.
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