i went to Oreilly's and got mine for my 63 k10 4x4, but they were abou three inches to short of even being close. so after trying to drill it through the store clerks head these are not right. i went to auto zone and i got some that were off a blaze or something. (they took a little work to fit but they work and look good) i don't know the parts number off hand but i'll get it tomarrow afternoon.