LS REAR MAIN SEAL KIT 635-518 4.8 5.3 6.0 6.2 12633579/ 12639250

100% BRAND NEW AND HIGH QUALITY
INSIDE DIAMETER (IN): 2.7 IN.
LENGTH (IN): 10 IN.
MATERIAL: ALUMINUM
PACKAGE CONTENTS: COVER, SEAL AND GASKET

While you have the engine out you might as well replace the rear main seal while you’re at it. Ask me how I know!