@Schurkey my apologies on lack of info, it is a 1998 GMC k1500 single cab shortbed. The axle is a 9.5” out of a 96’. Both have 3.73 gears.
The 477 ujoint, I assume that is the ujoint that allows me to use the stock drive shaft with the new rearend? I apologize if this is a dumb question! This...