Turbo Charger Unison Ring for Ford 03-07 Powerstrok 6.0 GMC CHEVRY Duramax 6.6 GT3782VA GT3788VA Direct Bolt On for 03-07 Garrett GT3782VA GT3788VA Turbocharger Fits all GT3782va GT3788va Turbos Fit on Vehicle: 03-07 Ford Powerstrok 6.0L & GMC/CHEVRY Duramax 6.6L