new heavy duty driveshaft

i have a new 3 inch steel driveshaft with 1350 spicer universal ends.
the shaft itself is 44" center to center
with new spicer 1350 greaseless u-joints are included..
$175 obo
i had in a 68 barracuda with 727 and dana.. i switched to a 9inch after 1 dyno session