thanks everyone for such great info!!!! To those of you who asked about my 15 inch splits, the only reason I'm shying away from using these is for wheel diameter. My drivetrain is a NV4500 5 speed with .72 overdrive and a 4.56 rear. I'd like to get 30 inches of tire diameter. I'm looking for some 17 inch splits, so if anyone has some here in the northeast, let me know!!!!! After reading some of the posts, there may be some other ideas to consider. Thanks again!!!