Driveshaft worked great for 3 months on-road. Then cyclic humming started. I thought it was my rear end because how could a TW shaft go bad? Eventually I swapped in some spares & his got so bad it was rattling the doors. I sent it back suspecting the centering flange asking them to replace the unbranded one with a Spicer and let me know if there would be a cost. They sent it back with a NEAPCO and "triple balanced" the driveshaft. They never contacted me. I put that in and it was the same problem. So I gave it down to the local shop & they said it was way out of balance. Last two times I was down there they've had their share of stories about fixing his shafts and said they used to get some parts from him but they were too crappy. It sits on the shelf to this day because I'm tired of messing with it. What I found in talking to others, many have stories about problems with his driveshafts. However, people don't seem that willing to post up on the Internet about it. Tom Woods is a nice guy. I enjoy talking to him. But I don't care for the quality of his driveshafts. I guess they do OK if you're off road only.