Torklift with happijack Tie down question

Who makes the turnbuckle is not of too much importance, but the length is what matters. When I first was running the combination the OP mentions, I had some chain lengths about a foot long cut, that I carried with me. I also stopped by a Tractor Supply store and bought a half dozen large screw type 3/8 inch carabineers to use to attach the chains. Worked just fine for me. Since I changed trucks and had to get new truck specific tie down mounts, I now use all the same brand. I also found it handy to carry a roll or two of black tape, to use with the chains, to secure the loose ends, if I didn't need the full length.

I bought 3/8 inch proof coil chain, which is stronger than the attachment points on my camper, I do believe.