Thanks for the replies. I'm with Dave, I was thinkin the guy might not know what he's talkin bout, but who knows. I wasn't at the shop, my friend took it up there for me.
They only make 2 kits, one is for stock axles and after market up to 31 spline (the one I have), which states the size of 1.398. The other kit is for 33 spline and bigger, the size for that kit is 1.414", so I have the right kit.
I couldn't turn them when they were off the axles, so I dunno.