Radius Arm Bushings/Ball-Joint/U-Bolt replacement

[Razor-02]

Would it be possible to replace upper/lower ball-joints while the knuckle is still on the truck? Also for the radius arm bushings, can I still have the knuckle on the truck as well? And one more thing, where can I find new u-bolts? Autozone,Oreilly's,Advanced Auto doesn't seem to carry them.

note: Don't know much about axles but on the differential tag (if I remember correctly) it says 7.75 if that helps for the u-bolt install. Thanks!

*maybe wrong about axle size

 

[Sasquatch_Ryda]

The balljoints hold the knuckle on so no, you have to remove the knuckle.

As for radius arm bushings, no need to remove the knuckle to do those, just remove the radius arm crossmember.