D30 Gearing -- don't make the same mistake as me!

Well, I was at the JY and found a 4cyl manual XJ and scraped the gunk off the tag and saw the numbers 411 - well fast forward like 2 months later and this morning I went to take off the cover and I was looking at the tag again and saw the numbers 373 - here it has 3.73's and the 411 was part of the 41-11 for the ring and pinion tooth count! So, I am just going to regear it now which sucks but my 3.07 carrier would not have worked with the 4.11 gears anyway so its not a total waste. Just wanted to open the eyes of some axle swap noobs like myself.