'08 Silverado - Mod stock to 87 Tune w/ stock TCM

[Mossyoakglock]

I am currently running the "modified stock tune" with just AFM turned off. I'm thinking about loading the canned 87 tune in the next few days. I want to obviously keep AFM off but I also want to keep the stock TCM tune since I am currently running the Vette servo and don't want the shifts any firmer. What steps do I need to take?

Do I just plug up the intune, click "write vehicle",select the 87 tune, go into the adjustable parameters (when it asks if I want to modify the tune) and turn AFM off? What do I do when it asks about the TCM tune? Is there an option to keep the stock TCM tune or will it ask "tune TCM" or something and click no?

[06MonteSS]

yes for the 87 tune/afm. that is correct...

and for the tcm, you'd just select modified stock tcm, that is just a copy of your stock/original tcm tune..

[Mossyoakglock]

Ok, thanks.

I wasn't sure because when I loaded the modified stock tune I thought there was something that said "load TCM tune" or something like that and I said no so I wasn't sure if it was the same when doing the 87 Canned tune.

[06MonteSS]

if you select no, then it will not install any TCM tune at all, so the stock tcm tune will still be in the vehicle.

[Mossyoakglock]

Perfect. I don't have any sort of TCM tune on the vehicle now so I would assume selecting "no" would be the better choice. Or if I selected "modified stock tune" it would load the TCM tune which would just the stock tune if I don't mess any any of the adjustable parameters (or since I haven't previously adjusted anything).