After looking through some online parts fisches I might have found one. Looks like Suzuki uses them too on their ATVs. The one I found is

27491-38F00 Final Bevel Gear (Rear) Breather, Case

There is a Honda and Suzuki dealer down the road from me, I'll have to stop in tomorrow and see if its the same. If it is I'll get one and post the info, if they have one in stock.

--Dave

1999 Rodeo LS 3.2 4x4 5 Speed
32x11.50-15 BFG T/A KO on US Wheel 94 series
3" Lift - Rancho 9000x
Rear No-Slip Locker
Flowmaster 50 series SUV 2.25"

There is a very fine line between "hobby" and "mental illness." - Dave Barry