master cylinder is not the same, I believe it is a smaller bore on the 1/2 ton. My 58 Viking 60 master cyl is a 1 1/4" bore and front wheel cylinders are 7/8 (Raybestos wk129). For some reason, I ordered the wrong wheel kits the first time, so I have 4 or 6 that are a 1/8". (Raybestos MK149). not sure what they fit though, or if they are the size you are looking for.
Last edited by 69Cuda; 02/28/2017 7:37 PM. Reason: corrected to viking 60
