2000 chev. silverado auto trans. rebuild

Waited about 1 year to post results as I wanted to see if trans. held up. Transmission was sliping in overdrive which is common with 1/2 ton 4l60e. Hammond trans. service added upgrades to transmission when rebuilt. Had shifting prob. within first few days and took back. They ran test and determined it was my throttle position sensor which I corrected and it fixed the problem. It had nothing to do with the rebuilt but identified the problem without charge. The transmission has been great since rebuild. I would definately use or recommend Hammond for any future rebuilds. They are established and will stand behind their work as opposed to some low cost trans. shop that will not be there when you have problems or want to charge way too much. Hammond trans. in my opinion is a good honest place if you need trans. repair.