[03BlkZ]

Gents, I am working on my 70 C10 with manual steering and I am in need of a new intermediate steering shaft. The swivel end rubber boot is basically gone and there is a lot of wear in that end. The splines are almost non existent on either end. I measured it and appears to be 3/4 shaft with my best guess is 36 splines based off counting on the main steering shaft. Does anyone know where I can get a good one? None of the online vendors for new parts seem to have any.
Thanks in advance.