BD Diesel Ford 4R100 Tugger Shift Kit Ford 4R100 Transmission Tugger Shift Kit; Reduce Transmission Slipping; Firm shifts; Longer Transmission Life. For Use In 1989-2003 Ford 4R100 Transmission FORD F-250 SUPER DUTY F-350 SUPER DUTY F-450 SUPER DUTY F-550 SUPER DUTY KING RANCH LARIAT XL XLT 1999 2000 2001 2002 2003 6L Powerstroke Turbo Diesel (363) 7.3L Powerstroke Turbo Diesel (445) DIESEL Bd Diesel Bd Diesel BD Diesel Ford 4R100 Tugger Shift Kit - 1600410 1600410 Auto Trans Shift Kits