The stock 3.3 shafts will work just fine to be honest. I use the stock shafts on my Emaxx I built with a 2200kv motor and revo 2.0 trans. And all the stock center shafts. And drive axles have held uo just fine. And this 2200kv has way more tourqe then the nitro engine puts out...
Oh ok that's why the cvd's. That engine has more tourqe then the 3.3 does. So you might want to replace it with new cvd shafts.
And not the stock. Sh*t you can try the stock ones. Not sure they would hold up for Long though
Here's the stock center shafts from Jenny's link below..
Unless you want to replace them with the CVD shafts. Are you still running the Stock 3.3 engine?
https://jennysrc.com/products/revo-center-shafts
Whats up bud. Jenny's rc would be your best and cheapest place to get parts for the Tmaxx 3.3. Or ebay has all traxxas parts. The 3.3 is a nice truck. Need any help just ask bud...that's what we all are here for....