You can have 7 X 18 and have either 8800 or 10000. The only notation for the heavier rating that is different is under the heading "Required R.P.O. Equipment" and says "Above plus two stage", and I don't know what that refers to.
A day without laughter is a day wasted- Charlie Chaplin When wrestling a grizzly bear, you have to keep at it until the bear gets tired, not when you get tired. 1948 Chevy 2-Ton
