When I used to pre-deliver new dealership cars {Linc/Merc} they too had the frame mounted tie down brackets. I have 4 of them still. I thought about welding them to my chassis or frame somewhere.

A freind of mine has some pieces of chain attached to his chassis at 4 points. All he does is hook the tie downs to the chain. Quick and easy.

I have ratchet straps with the big 3" wide flatstrap hooks. What do you think is the better strap end? The locking ring clip, a regular hook?? I want to have things better {read; CORRECT} this year while trailering. Let us know what you all have..