I've got a 07 LBZ that a buddy of mine tried to install and transgo in for me. He's very knowledgeable with the Allison tranny and has done full builds on quite a few of them. Trim valve B when in just fine. But he said trim valve A would not slide freeley it was to snug if I remember correctly So I just said forget it for awhile. I have now bought another one and the new valves look the same as the old as far as size goes. Has anyone had issues with the transgo jr's being machined wrong or is there any other thing that might cause this issue? Truck is stock other then tunes. Has 128k miles on it. Thanks in advance for all the help!