Has anyone used these CV shafts?

[Beavinator]

I am thinking of upgrading to these cv drive shafts and I wanted to know what you guys think of them? Anyone using these?
http://www.ebay.com/itm/U-JOINT-AXL...AVAGE-21-25-4-6-SS-X-/200648729539#vi-content

 

[olds97_lss]

Never tried them. If you do, I'd try to find some boots to put over the "slider" ends as dirt/grime will get in that joint, chew it up and cause binding.

 

[Beavinator]

I ordered them and got a set of boots also. I will post how they work.

 

[mackdaddy66]

hey just upgraded my savage .25 to the axles with cv joints, plus i wanted to get rid of the left handed threads on the savage .25. easy upgrade and they seem like a better design. let ya know later how tough they are.