Well folks, i've had a nagging vibration in my M1028A1 for some time now. Vibration would start between 50 and 55 mph. Figured it was an out of balance drive shaft, but I never suspected it was the wrong drive shaft. After doing a search on drive shafts in the CUCV forums, I discovered my drive shaft was actually for an M1008. Took the correct measurements and my slip yoke to a local builder and they whipped one up in a day. The yoke did not slide far enough into the transfer case thus causing the vibration. Took it for a spin on the freeway tonight at speeds between 50 and 65 and not the slightest issue!
Oh, by the way, I now have a good used driveshaft for an M1008 for sale.
Oh, by the way, I now have a good used driveshaft for an M1008 for sale.