Like the title says, I snapped my 1 piece aluminum ds. and found a used one that I was told has over 100k miles on it. I inspected the u-joints and they are good (move freely etc.), but I just wanted some opinions on if I should just go ahead and replace them while i have the ds off.
Should I:

A) They are good, an unneeded expense right now
B) Take the U-joints off my broken ds that has only ~ 70K miles
C) Quit being such a cheap *** and just replace them.

**And how important is it that I put it in on level ground since it is a one-peice???**
Worthy opinions are appreciated...

 

It'll break if it don't fit. What's the odds. Just my take.

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Ford Built - Ford Tough

 

Myself, if i already had the ds off i would go ahead an change the u-joints just to be safe. But if you say theres nothing wrong with the ones on your old ds its really your own judgement call, if your gonna do work you wanna be confident in it.

 

Replace them, you have the shaft out. I used to always replace UJ's with ones I can grease but not anymore. The sealed units last just as long and the sealed UJ's are stronger because the cross does not have the internal drillings for greasing it.

 

As stated, replace them unless there is a $$$$$$ issue. Try not to go $$$$$$ cheap. In the long run you will never have to replace them.