I agree completely. Mustang II kits are for the most part much stronger than many people think. That said, I also agree that if you're going to use your truck as a "working" vehicle driving over back roads, pulling big loads etc. you might want something a bit beefier like the mid 70's Chevy pickup suspension. It will bolt on fairly easily and doesn't require any frame butchery. However in my opinion its just a little bit wide for the AD trucks.
Although anything can be screwed up its pretty hard to mess up a Mustang II kit. I suppose if you can't read English or measure with a yardstick you could mess one up and I’m sure someone has but given the number of successfully installed kits out there the number of poor installs would have to be very low. Heck, if you use the fat guy’s stuff you don't even need to know how to weld. I still say that for the vast majority of "street rods" including trucks, the Mustang suspension is more than adequate.
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