Gobolt...The general consensus is tht Mar-K seem to be the guys to deal with for bed parts.
Made in the USA and usually with some good incentives(discounts) for 'bolters.
Most of the other stuff seems to be made elsewhere.
A lot of the aftermarket stuff requires a little 'fettling' to get a good fit.
Maybe I was lucky,my cab corners fitted quite well with minimum adjustment.
