I just did this, after a bit of a problem, I'm all done and the nickel slip yoke works great. You don't want to keep greasing your yoke, the grease will degrade your fluid over time plus its a PITA to keep doing it. I ordered the wrong one from gm parts direct, the one that ends with 702 I believe, is for a ext cab 4 WD, they wouldn't take it back so now I have a 200 dollar paperweight until I find someone who could use it. The shipping also was expensive and took forever. I ordered the correct one for our trucks from drive train America.com, the part # is 40032054. I just installed it and it fits great and they were very quick with the shipping, only cost 115 bucks as well. Highly recommend them. First time I ever changed a u joint and it went really well. If you are on the fence, DO IT! It really is worth it.