Join Date: Apr 2009
Location: San Bernardino, Ca.
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The stock cap roughly 60mm-2.5/16" in diameter, 3/4" deep (mounting surface to outer edge) and 4.9cm-1.9" across the mounting surface. Don't know how much that really helps you unless you can find the dimensions of the other caps to compare.
2005 Pontaic GTO - CGM 6 Speed (My car)
2017 Chevrolet Colorado 2WT (My daily driver)
2010 Mercedes Benz C300 Sedan (Wife's car)
2014 Kia Rio LX (Wife's daily driver)