Sonnax offers two neutral safety backup insulator service kits [22229-03] and 22229-07K which replace missing, cracked or broken insulators and eliminate the chance of returning fatigued or brittle OE parts to service. Direct replacement, no special tools required Securely fastens to the detent lever (rooster comb) with a 1/8 diameter steel pop rivet Eliminates searching through cores for a usable detent lever