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Bobby Fazio · 09-13-2013, 09:19 AM

I've taken all the shift fingers I currently have, as well as the brand new one I just received from Jerico, and my machinist and I did two dye penetrant tests on them and they ALL have cracks, even the brand new one. Evidence of cracks at the bottom base and 1mm up in the flat (where mine keep breaking). These pieces are not being made right from the factory. My machinist believes the heat treat process is not being performed correctly. I am going to have some made out of 4340 steel rather than 8620 and they will hopefully never break again.

09-13-2013, 09:19 AM	#22
Bobby Fazio VIP Member Join Date: Nov 2009 Location: Egg Harbor Township, NJ Posts: 1,377 Likes: 1,148 Liked 3,494 Times in 426 Posts	Re: Anyone have a shift finger for Jerico? I've taken all the shift fingers I currently have, as well as the brand new one I just received from Jerico, and my machinist and I did two dye penetrant tests on them and they ALL have cracks, even the brand new one. Evidence of cracks at the bottom base and 1mm up in the flat (where mine keep breaking). These pieces are not being made right from the factory. My machinist believes the heat treat process is not being performed correctly. I am going to have some made out of 4340 steel rather than 8620 and they will hopefully never break again. __________________ '65 Mustang SS/L & L/SA DriverInterviews.com \| App.DragInsights.com