Cases built by marlin, billit shifter bases not twin stick, top shift. I called marlin told him I was building a V-8 runner with 700R4 and wanted dual cases. He built the cases and also sent me adapter for t-case to tranny. This is a few years old but has very limited use. The engine has less than 5k and most of those are highway miles. Took the family camping a few times and had to lock it in here and there. I don't know what it has for input or output just know they are 23 spline.
I have pics if someone can post them for me.