just purchased an 86 k10. it came from the factory with a lot of extra's (by the size of the list in the glove box, maybe EVERY option available). i've got 31's on it now, but want to throw some 33's on it. i dont know if they will clear or not. does anyone know if i would need a lift or not. or if it has a bigger suspension from the factory? its got the lockers from the factory, the silverado package, lower gearing, the list goes on, but i didnt notice anything that came right out and SAID a bigger suspension. can anyone throw some help out at me?

 

theres a guy i work with an'80 (i think) so im not sure if its the same or not but hes got 32's and said it sometimes rubs depending on speed and how sharp the turning is and his is stock height