Well just got my truck back from the shop i had a Transgo HD2 shift kit installed. Now the truck shifts worst than before.... hardly shifts firmer than it did before. Sometimes just randomly the tranmission will shift rev up 600rpms and then shift?? Never did this before. But it does shift quicker than it did before just not that firm very mooshy shifts.

I asked them to set the shift kit to the firmest settings and i got my old parts back so i know its in there.

Ive had two people tell me that i dont need to have it tuned since im mechanically chaning my transmission?? If hope this isnt right... if so then this shift kit was installed wrong or something.

Does anyone have any ideas?? I have HP tuners just tell me what tables to maybe play with to get it better.

Just a reminder my transmission was shifting great before the service and never had any of these problems.

Thanks Brandon