Answer
Aug 05, 2025 - 08:24 AM
The OD Diameter is 39 mm. There are 36 splines on the inboard side. This will not fit the 2010 Polaris sportsman 400 HO. I provided the link below for the correct rear axle for this machine.
https://eastlakeaxle.com/products/pol...
https://eastlakeaxle.com/products/pol...