I have probably have cut up over 100 old school buses in the past for scrap. I never seen any seats that are close the original suburban seats. shape and contours are all together different, I have own chevy suburbans for many years and know when I see something that is close. But those seats can be made to fit, as it will be about close will be able to get without spending a lot of money,as those seats are made of metal ,and time can be spent to make something nice and close with out spending a fortunate. I a few weeks we will crushing out a old salvage yard here and in they got an 1956 GMC full size bus, I will be glad to remove a couple seats and set a side for someone who would like to try to make it work for their suburbans.