Lookin to bodge together a tandem axle walking beam trailer to pull behind an ATV. Would 1inch shaft be beefy enough to use for the pivot point of the beams? Or should I go with 1.5 inch material? Tires and rims are going to be rated for roughly 1500 lbs total . Will a short 1inch stub shaft ( say 6 in unsupported )handle the twisting and impacts when towing the trailer over rough ground or will it bend too easily. Was planning on builing the frame out of 1x3 tube with a cross member at the pivot point that will accept the stub shaft... so there will be 6 inches of the shaft protruding outsidte the frame work if that makes sense.
