What is the bolt pattern on a 1987 Chevy Silverado lugs for wheels?

I have a 1987 Chevy Silverado and I'm looking at a set of rims that have a 5x5 bolt pattern will they fit?|||5 ON 5 PERIOD.. CADILLAC, OLDS,BUICK , PONTIACS AND IMPALAS, ASTRO VANS AND OTHER LARGER GM'S WERE ALL 5 ON 5 PERIOD.! YOU HAVE ZILLIONS OF OPTIONS FOR WHEELS !!|||um you are right,5 on 5, chev didn't put 6 holes ont there 2wd untill 2000, unless you have a 4x4 then everyone else is correct about the 6 holes|||No im pretty sure the bolt batern on your truck is 6x5.5 which means it has 6 lugs, the rims only have 5.|||It's defintely a 6 bolt pattern 6x5.5 :) |||Just torque every other nut and that will solve your problem