Next time I'll put my glasses on before I post! Yep they are 15". My wheels have some rust spots. Has anyone had success refinishing the factory wheels? And if not, are there after market wheels that don't require spacers, etc? Ones that fit without any other changes?
It's the distance the center portion of the wheel is moved towards the axle in relation to the vertical center line of the wheel ring during wheel manuf., to allow for problem solving of clearance issues such as tire rub, etc.
I think I am pretty close on this one, but what the hell do I know? Glad to hear your doing well Brother.
stock rims have 3.5" of BS. as long as you have that much you should be good to go. when the number gets higher, the rim gets closer to your calipers and TRE's. i think the most you can go is 3.75" before the rim hits the TRE's. add one inch to the edge of the rim and see if it clears the TRE"s