Posted 9/9/2013 20:55 (#3318491 - in reply to #3318468) Subject: Re: 10 speed vs 13 speed tranny
South Central Kansas
With the bigger engines you don't really need a 13. I have a C-10 and a C-12 with 10 speeds C-12 works better and C-10 is OK but would work better with a 13 in my opinion. I have other trucks with 13s and smaller engines and really like them.