I figured I would start a thread to document the installation of bladders in my C model, I do not believe such a thread exists here yet but someone please correct me otherwise. I will update this thread as I have time to work on the project. I obtained a set of serviceable bladders (54.8 gals) from AirMods, and I purchased the STC and a few misc parts needed to complete the job from Griggs aircraft. I just started the job this weekend so progress will be slow.     Here is t