I just got my truck back after having the hvac housing tsb done. I have to say it seems colder but that was just what I noticed on the short drive home. That is a good sign because it would normally take a long time to start to cool down. I’ll have to test it more once it gets hotter out over the next few days. It is only in the 80s today. Funny thing is I had brought my truck in several time telling them that the ac just didn’t really get cold and they always said that it fell within spec. This was before the tsb came out. I have been deployed overseas the last year so this was the first chance I had to get it taken in to get the tsb done. So I took it in after they got the parts in and they found that the shrader values were leaking a d they replaced those also. They say on the invoice they replaced the valves and took on a long test drive and concern was still present which is funny because they had always said it fell within spec. Then the replaced the housing, wire harness, and hvac module per tsb and test drove ok. I’ll let everyone know if I notice any issues from removing the dash and if the ac has improved.