I had a custom aluminum one built by Action Machine and couldn't be happier. Their service was excellent, the shaft is very nice, and it was surprisingly inexpensive. I recommend them to everyone. https://www.actionmachineinc.com/pages/driveshafts-landing-page
I think it's the same company, I don't know if they are like Mcdonalds where it's same name but different owners or not. We used to have one here in mansfield, but they moved all the way to hilliard, but the the same guy from here runs it down there.
Anyone else here ever had the two piece driveshaft shorten up? The stock shaft in my GS was telescopeing and puled the slip yoke out of the tranny. Caused a leak out the air blead whole in the center of the yoke. I had a one peice shaft made to solve the problem.