Performance Transmission shop near Huntsville, AL?
 

I need to find a very reputable diesel transmission shop somewhere near Huntsville, AL. Near is a relative term, I have been considering driving to Goerend Transmission which is a very long way from here...
I had my tranny rebuilt in San Antonio, TX with many upgrades. I decided that the Trans-Go shift kit was having issues so I ordered and had a Goerend Valve Body installed by a local shop. I feel that the shop wasn't really in tune with dialing the transmission in and it seems to shudder a little when initially taking off under load. I want to take it to someone that can really dial it in.