IMO, it all boils down to personal preference. Some like blondes, some like redheads, some like straight axle trucks, some like the twin I-beams. If the twin I beams were so great they would still be using them. Not much difference in the ride quality in a 46 year old truck and a 44 year old truck. AFAIK the door popping open story is an unconfirmed myth. BTW: I didn't say they quit making the Uni in mid 63, I said that they started offering the wrong bed option in mid 62. If you like the Uni buy the Uni. It's your truck. Buy what you want and do what you want with it.