Certified transmission in Topeka is a damn good company!! Hands down. I called to get a quote for 4l60e for my suburban a few days ago and few minutes ago they called me unexpectedly to see how i was doing and helped me out by answering a few questions i had about fixing my transmission. If the worst comes down and I need a new one ill be giving them my business for sure. It's nice to know that there are salesmen still out there that truly care about people and take a few minutes out of there day to lend a hand when they really didn’t have to. Thanks certified transmission! Five stars.