This is just food for thought, but my CJ had a modified driveshaft when I bought it. The PO had installed a CV joint on the rear shaft to help with vibrations from the 6" lift.
Hang with me here...The driveshaft gave out on takeoff in a Mud Fast track race (darn 5000 RPM and drop-the-clutch launch anyhow
)
Here is what it looked like after finishing the race...
As you can see, it didn't hold very well.
So I went to a specialty driveshaft shop and asked the experts what to do.
He recommended that I use DOM tube to rebuild the shaft, using the old parts (to save some green).
SO away I went to the machine shop...Here is what
he came up with...
you can see the shaft in the upper part of the pic. it is either 5/8" or 3/4" (I can't remember now, Old Timer's kicking in...) DOM tube. It went back to the driveshaft shop and put back together and balanced. Its 19" long, weighs about 50 lbs, and is virtually indestructible (the shaft anyways).
Now I can't tell you the difference in strengths between DOM and poop pipe, but I bet CJ can (he
is almost a rocket scientist, really!), but I will bet its a bunch.
What I'm trying to get at in a very long-winded post is this: If the experts recommend this kind of strength for a little Mud-Boggin' CJ like mine (compared to yours anyways), don't ya think that its worth the extra time and $$ to do it right, instead of making do with the scrap you have laying around the house?
You really don't want to drop a driveshaft (or worse
) with all your
friends (Yea, I saw your 18 years old) looking on, do ya?