Im not sure what gears it has Is there an easy way to tell with out counting tire and pinion revolutions such as a tag or id some where on the third member My email is freeride38@hotmail.com and my # is 4439551612 let me know as the truck is going to the scrap yard this weekend

I realize this is old, but did you ever get the 1991 V6 MT ECU you needed? I ask because I have one laying around and I know how year specific these are.
Matt