I found a set at NAPA that worked. The set I bought from Autozone were 2.003" in diameter. I returned them and they offered no better solution. At NAPA I bought a set that were 2.014" in diameter and they pressed in properly. I happened to be in Alabama on business this week and found a set at O'reilly that were 2.010" in diameter but I wondered what the airport security people would do with little grenade looking things in my bag.