should be. Tim at bullet said chrysler cores are better than ford and GM cores to be reground, because they are hardened much deeper, ~ .4" deep. mine has been going great, granted, I only have about 1000 miles on it so far.

1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)