[cooperino]

Originally Posted by sawdustdad

What do you think about E track? Would a couple E track clips underneath each tractor, secured to the frame members and pulled taut be adequate? Thinking running two rows of E track down the length of the trailer bed, centered under each row of cubs.

E-track will work great! Make sure some bolts hit the cross members. for the ones that hit the wood use a good size fender washer on both top and bottom. For real strength I would use bolts on every cross member and then one in between each.