Has anyone upgraded the thickness of their driveshafts? Uglibus says his was made of thicker steel making it less prone to damage. I had nicked my driveshaft about 2 months ago and I banged it pretty good yesterday. Now I have a vibration. Also, are 91/92 driveshafts the same as the later models? There are a few in boneyards here. My other option is to put the good driveshaft (new or junkyard) on most of the time and put my prebent one on for the trips to the rocks.