Series I Clutch Disc Series I Clutch Disc;Size 11.5 in.;10 Spline By 1 1/16 in. FORD F-150 F-250 BASE KING RANCH LARIAT STX XL XLT 1999 2000 2001 2002 2003 2004 4.6L Triton (281) GAS Centerforce Centerforce Series I Clutch Disc - CF361941 CF361941 Clutch Covers (Pressure Plates)