I read through all the related threads and I seem to have a unique situation.
Electrically I believe all is well I have power at the connector and the 4×4 displays on the cluster as it should. 27 ohms on the coil.

2006 Sportsman 500 HO EFI

Fluid level is full and clean as I just changed it.

With the quad in the air in low or high in AWD the front left spins but I can hold it from spinning pretty easy. The front right tries to spin but doesn’t. It is basically freewheeling.

In reverse with the override pressed, the left front is very strong and difficult to hold back. The right side spins very slowly.

Is this behavior normal?

Also, since electrically everything is in order my guess is mechanical.
Are the front diffs rebuild-able? I did a search and only found 700 and up listngs.

Any help steering me in the right direction is appreciated