I am wondering what I need to download to be able to set my defuels for my shifts. I have 7.4.2 with the 11-13 update but did not do the E67 update. Is the E67 update what I need or do I need 7.5.1? I am pretty new to this and am trying to learn. I need this for the 08 with LMM.

I am wondering what I need to download to be able to set my defuels for my shifts.

What exactly are you trying to do?

I want to defuel a little to be nicer to the transmission when it shifts.

with the 11-13 update you should be able to download your stock trans file by selecting allison 6 speed on the controller selection (like how you selected LMM to download the engine tune). If not, I think Ross or Paul could probably update their .cal definitions to support it (hopefully they chime in to clear it up).

Chris (the neens) did a nice defuel tune for my Alli. :D
See if he can help you.