I have to say I was a little disappointed in the transmission slip yoke that Denny's Driveshaft used. It appears to be a used yoke that was refurbished. It has the look of having a lot of pitting or galling still left after being polished down. Its smooth and groove free so I guess it doesn't really matter but I was expecting all new parts.
Looking at the site, it doesn't actually say "all new parts" so I guess I cant complain. I will always ask from now, that's for sure! Hopefully, the u joints are new. They do feel new and stiff though.
One positive is that it came with new u bolts. Everything installed well and seems to fit perfectly so I'm happy.