D9L exhaust studs

samedi 5 avril 2014

Hello all,

Havent been on for ages and have a question for someone. Have been digging out broken studs from the heads of a 3412 (exhaust) with the aid if the Cat broken stud remover and realized that the kit is for 3/8 studs and mine has 7/16 thus I had to make more inserts for the cat tool to work. My question is was the 7/16 stud an update or a mod? The original stud is a 4S6137 ( 3/8 ) but now are 7/16 UNC. If the 7/16 is an update does anyone have a part number? Thanks in advance.




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