Some how the driveshaft I have is made for a 13" stand off box from IMCO, I spoke to IMCO this morning and he verified that at one time they offered a 13" box. I have the standard 12" box.

If someone wants to trade for a +12" driveshaft with a 1.328 bearing cap let me know. Other wise I'm going to take this to my machine shop and have it cut down to the length that I need.

IMCO mentioned that there are a few guys looking for these.