I'll get to the point. How do I tell which transmission do I have mated to my engine. the 68RFE or the Aisin 6 Speed? I ask b/c I was looking at downloading the trans program for my Mini Maxx but noticed on H&S's website they say the program will not work for the Aisin. When trying to figure this out via the google I am noticing both were available for the 07.5 and after (as i have an 07.5). any help would be greatly appretiated.

 

The Cab & Chassis has the Aisin. All others have the 68RFE.

 

Until the 2013MY the 3500HD now offers the Aisin and the 68RFE + manual but the 2500HD only is offered with the 68RFE and manual.

jim W.

 

thanks guys. you have put me at ease.