About these RCV, The inner shaft is chromoly and the outer is ?. Doesn't say the outer is chromoly. How easy is it to get replacement parts, I'm kinda of a boy scout I like to carry spare parts. It seems it would be easier to stick with ujoints and shafts. I'm sure the fixit parts for the RCV's are not cheap.
Well the whole point with the RCV's is that they do not break. I asked them the max tire size they warranty on a D30 and they told me 40" :laugh: The only time they MIGHT break is if you have a very high hp engine and big tires, or you somehow mod your steering to turn farther than stock.
Breaking the shaft may be possible, but I doubt you'll do it on 35's with a D30. Both inner and outer are chromoly and I think the ball is too. You break it, they replace it, no questions (unless they determine your steering turns too far, which it shouldn't if the knuckles haven't been modified). So you don't need 'fixit' parts, they will replace whatever breaks, and good luck breaking anything.
As far as replacements, if something does go wrong, just stick a stock axle back in there. If you want to carry replacements, throw your stock shafts (assembled with u joints) in the back and you should be worry free. I have my stock shafts with unit bearings attached in the back of my jeep now.
I went on a trailride back in April and didn't have time to install the RCV's, so I just brought them along. After the first day, I found that I had cracked the caps on one u-joint, so I installed the RCV to replace it and ran the next day with one RCV and one stock shaft. At the end of the 2nd day, the caps on the other stock joint were broken, so I put in the other RCV the next day.