I just got off the phone with Buffalo, the 5 lug brackets will not work for the GM 6 lug rotors, maybe with a toyota rotor... His kits have a fair amount of offset to avoid moving the wheels outward.
According to Buffalo, interestingly enough, the 41-59 6 lug kits will work for earlier trucks, you just have to make sure you have the right inner race all you have to do is let him know its for an earlier truck.
He says installation is easier if you can get your hands on 51-59 front hubs, but it is not required to install the kits in pre 51 trucks, just easier.
I'll be ponying up for a kit this week for the 39 and maybe for the 46 before too long. I guess the early 5 lug kit will be going to the swapmeet.
