Does any ATV(Quad) have a proper rear differential?

[Donegal_TDI]

In particular, Honda or Arctic cat.
Honda do not have a proper rear differential.
The rear axle is solid inhibiting tight turns.
Gets worse when towing a heavy load,
ATV does not want to turn.
A proper rear differential,
that could be locked when needed,
would be ideal.
Anyone?

 

[wallace]

My new Polaris touring has exactly what you are looking for.
I think they call it a turf lock.

 

[Leon Wittner]

Try the Kubota RTV's They have power stearing rear differential lock and turn great even with load or towing a load.