Yea, yours is */C'd. Which also means you have a slightly different transmission. The version you have is a built up more/heavier dutier trans compared to the non-*/c'd engine trans.

But what I don't understand, why is it so difficult to find this part? These things are almost a dime a dozen and can be found at any corner drugstore.

i just got off the phone with advance auto they didnt know nothing about the ratios till i told them and then at that point she put me on hold and then came back and said that they have 2 ratios (2.84) and (3.06) but they dont have one for a 2.93 ratio, im starting to think i have the ONLY car with the 2.93 or maybe it because im in canada

Guess it'* time to swap out the whole trans for something with a 3.06. You'd appreciate that one more because you can really put some rubber down.
Anyway, I just sent GM Parts Direct an email asking for possible solutions as to where we can get you the part you need.

This is something billboost should chime in on. I don't recall ever needing a different axle for different ratios. Only standard and HD axles.

That'* what I was thinking too Dan. But my thoughts kept getting thrown off by what mansopoor was being told.

If that'* coming from places like advanced auto, I don't listen to them. Think about it here. You have a splined shaft, and that goes in to the splines of the diff. None of those determine ratio. It'* the gears at the transfer chain, and the gearing of the diff. Ask for a axle for your cars year, and trim level.

sorry it took so long for me to get back. ok, i need to make this clear, i DONT see what ratio has to do with a cv shaft, but i have had 5 gm dealers tell me the same thing (that i need a 2.93 ratio cv shaft). i did ask some of them what the difference is between the 2.84 and the 3.06 verses the 2.93 that i have in my car, and no one at gm could answer it. and i do agree with both of you, there is NO WAY the ratio can be a factor in the axle, but i cant get out of my head what gm told me, and it wasnt just 1 or 2, it was all 5, i just dont know what to do at this point and being new years eve i cant get no one till some time next week.

here is one thing im rolling around in my head, what if, the 2.84, 3.06, and the 2.93 all have a different spline count, or different OD, or different length, or, or, or, or am i just pulling on straws

I tried looking at the 4T65-E manual, and I could not find anything that would help us out.

I have a feeling about this one too.
Just got an email back from GM Parts Direct. They cannot research my question without a VIN#.
So, if you wouldn't mind sending me your vin #. You could PM it to me if you prefer.

FINALLY got an answer back...