Too bad I can't post any photos yet. I need to get 11 posts before I can do that. So when I look at the transmission photos in Marlin's website I find that mine looks like an odd ball. The case looks just like the one for the t100 r150f but the bell housing on mine is different. It has a top shift style transfer case and the shifter for the main gearbox is near the rear of the tranny case. The guy I bought it from said it was out of a 94 pickup with a 3.0v6. When I look at the r150f photos here in marlin the ones that fit his description have the transfer case shifter setup as a forward shift style with the main gear shifter a few inches farther forward than this one. I'm positive it isn't a w56 as I have taken those apart and know what they look like. Does anyone know what this may be? Thanks for looking javascript:void(0);