Center Diff Spur Gear??

[Mickstix]

Hey, hope this is the right forum.. I did a search but didnt find the info I was after.. Im wondering if the center diff spur gear on an 1/8 truggy is a standard spur gear, or if they are maufacturer specific? I have a Redcat Monsoon XTR and it's got a 60t spur.. I've read where it's a basic copy of Kyosho's ST-R, so I wonder if a spur for an ST-R would fit? Or basically, what my options for spur gears are, running this redcat center diff? Thanks for any info!

Note: Ive not yet had the diffs out of the chassis.. Just curious about options at this point. Thanks