Scotty, if it was for the Suburban then you got a Ea15k32 more than likely. If you want a larger one the same filter but longer is the Ea064, which I run on my truck. Why the difference? Doesn't make sense to me but for your year they call out the 32 but my 5.3 in a 2002 models still calls for the Ea064. If you want I can send you a spread sheet with all the different filters and their sizes.