I've been searching online but haven't found the answer. I have an Athearn Genesis GP15-1 and I'd like to add dynamic brakes to it as a fun kitbash. Since Athearn didn't make this Conrail loco with dynamics (true to prototype), I have to get a little creative if I want to avoid painting. I'm trying to find out if the dynamic brake blister for the GP38-2 or similar GP model would work. The best I can think of is comparing part numbers for non-dynamic roof panels on the GP15 and the GP38. Those numbers don't match from what I've found online, but I'm not sure if that's because the diagram I found is for a different paint job or what the deal is. Per my ruler the removable panel is approximately 2cm in width and 5cm in length. Anyone out there with a GP38, GP40, etc that would be willing to measure?