IRS Thunderbird half shaft geometry?

[Richard Hudgins]

Originally Posted by strictlypersonl

Richard,

That's an interesting point about the tripod inner. I'm too used to seeing Rzeppa's on both ends. There probably is some longevity advantage to a little designed-in plunge.

Bob,

There might be some increase in life, but nobody has put enough miles on a JBL for me to have good data points.

40k is the most so far and that is with a relatively low output motor. (400 or so foot-pounds.)

So I really cannot say if my thoughts are backed up by the scientific method that we prefer.

But what the hell, the halfshafts have not fallen out yet, so I am calling it a good approach.