diff ratio

so guys got a 323 e46 and was wondering what higher/better ratio diff i can put in, like i did with my e36, I've seen some people use X3 diff with either 3.91 3.64 3.73 ratio but there hard to find. whats the best ratio out of a standard e46? also whats the strongest shafts to use as dont fancy...

I have been on a lookout for a 4.363 final drive ring and pinion for a while now. All I could find were very good options from Japan, but with casing and Nismo/Kaaz 2 way LSD. That would be perfect if I didnt have both already. Other options were too expensive. Later I found a breakers yard...

Yo dudes, Anyone got a jzx90/100 diff with 3.7 crown and pinion that you want rid of? Iv got a 4.1:1 atm which is very rare, I'm willing to do a deal in your favour to get a 3.7:1 C&P asap.. Let me know what you've got.. :thumbs: