[Jerry Clayton]

On a Jeep , that wouyld see a moderate amount of off road playing, I would probably use a high quality greasable joint if the engine was stock or of moderate horsepower---the dirt and water extraction during the greasing process is highly overrated as you will only purge one of the four corners( the one that the seal pops first)

The miles that get put on one of these cars , lubrication will not be a problem that comes into play---strenght is

The shorter the driveshaft the greater angular difference from misalignment issues

But-----I'll let you choose what ever time bomb you want to put by your right hip---

Jerry