I used to buy those at our local NAPA auto parts, but I'd guess that O'Reileys (or any national chain) should be able to get them easily.
You just need to talk to a human. The "year, make, model" computers cannot think outside their program. Simply find an auto parts guy who can look in the catalog. You'll find what you need.
1992 YJ, 401 V8, EFI, TH400, Atlas, D60s, Detroits, Warn 8274, Cage, 37 Krawlers
1997 TJ, 350 V8, EFI, TH400, Atlas 4spd, D60s, Detroits, Warn 12000, Cage, 40 Kevlars
TTC 1994, TTC 2012, Trail Tour participant.