This is a genuine AAM ring gear bolt that was used in 7.6″, 8.0″, 8.25IFS, 8.5″ or 8.6″ front or rear differentials. These are left handed threaded and have a dry-film Loctite on them. Interchanges with YSPBLT-019 and GM part number 12479028.
7/16″ x 20 x .88″ – LH 6 PT SERRATED HEX W/ ADHESIVE

417-862-4455


