If it has the two lower bolt holes threaded, it is from a pickup. If your bellhousing lower holes are threaded, you will either have to drill out the holes on the trans or the lower holes on the bellhousing to 1/2". It will work then. When you say it has 2 bolts on the driver's side, are you talking about the shifter shafts?? All the old non-synchronized 3spd's have 2 shafts sticking out. They are about 5/8 or 3/4" in diameter and are two different lengths, but i think they are Muncies. Your BW Gear Div. is Borg Warner. I am not familiar with those. All the fully synchronized Muncies have 2 short shafts with bolts holding the shift levers on. As to not being able to use it, I can't think of any reason except the shift linkage might interfere with your brake master cylinder. If this didn't confuse you too much, maybe it will help. Joe