We strongly suggest comparing the posted picture to your faulty unit! REAR AXLE SHAFT WITH WHEEL HUB AND CASTLE NUTS PINS.
The item "Rear Axle Shaft Wheel Hub Castle Nuts For Honda TRX300FW Fourtrax 300 4X4 88-91" is in sale since Tuesday, February 12, 2019. This item is in the category "eBay Motors\Parts & Accessories\ATV, Side-by-Side & UTV Parts & Accessories\Brakes & Suspension\Axle Parts".The seller is "caltric" and is located in Pacoima, California. This item can be shipped worldwide.