Can you explain why chromo shafts aren't an upgrade in your opinion?
This is what I was looking at getting, quite a deal it seems:
Christmas Sale - Front Chromoly 4340 axle kits - $349 complete kits with warranty
http://www.naxja.org/forum/showthread.php?t=1124336
I know you didn't ask for mine but here we go.
If you get the chromo shafts that are a lot harder and won't break.
You are not breaking shafts as of now so that is not your issue.
By putting the shafts in your Dana 30 you now move the weak link to the ring and pinion, and that is not a trail fix.
Scott blew through 2 Dana 30 R&Ps after getting chromo shafts and almost a 3rd there at the end the only saving grace on the 3rd was he only had one chromo in and one stock. He broke the stock.
Anyway I would avoid it unless you are breaking shafts all the time.
Now the exception:
Scott was breaking shafts all over the place, street, trail, in his driveway....
So it was a trade off for him
A new R&P every year vs shafts every other trip to the trail and occasionally trip to the store.
Like I said
I would put a new x760 and tack the caps and if you do break something later on it will be something you can fix on the trail.
Because as of right now the issue is the cap getting lose.
But to each there own
Lots run the shaft and don't have issues
But for me
I would want my "fuse" to be where I can get to it, fix it and keep wheeling.