BenK wrote:
You'd spend more having it certified with a new GVWR than just going out
and buying a dually...
Certification is only required if you are performing the conversion for a customer, or you are selling the truck with the higher GVWR. It is not required for private use.
I converted my van using hub adapters. 300,000 miles later, so far so good. Only problem I've had is the aftermarket out wheels working loose after a while, because they are lug-centric instead of hub-centric like the OEM wheels. I will be fixing that soon. The lug seats are pretty worn down, so they are due for replacement.