Sorry I tossed the box away for the tranny pan filter and gasket, but your local parts store will have that info if you just tell them what tranny you have. The 6.0L comes with a 5R110W, not the 4R100W. They might show two of them, one for $10 and one for $20ish. It is the more expensive one (of course). BTW, if you have not done so in a while, I would recommend draining the HCFM while you were under the truck, or changing the fuel filters if you did not do it the last time the oil was changed. The fuel filters on a 6.oh are supposed to be changed every other oil change.