i keep breaking the u-joints in my axles and then takes the shock out. any help on replacement parts/

That issue has been covered here many times. Use the search box above. Type in shock saver. Then type in u joints.
Every thing you need to know is there.

thank you

I will saver you a bit of time here. If you type in "The missing third link" or go look at that post you will see a few ideas on saving your shock when you break a u joint. One is my idea and the other I stole the idea from another member here but I modified it a bit. It is the chain idea. Those are my machines in the pics. I am currently using it on both my machines but have not got a chance to try it as there is still snow in the mountains.
With regards to u joint breakage, from what I have gathered here there is no real bullet proof u joint available that will hold up like the stock one. But most seem to run the one from powertrain industries. The part number is 9951-22. I have never changed one yet but I think I might do the right inside on my machine as it has some play. From what I have read you must run a 20mm reamer through the joint and clean the circlip grooves real good before installing the new joint. Also if you get rammy it's all over. The new joint must go together smooth because the after market caps are much thinner than the stock ones. I bought a 20mm reamer just for this job.