What year model is it? . The early models had a 2 piece shaft set up running from the front diff to the rear transmission. they intersected at what was called a carrier bearing up under the driver's seat. They were changed to the one piece shaft in later years . For example, I had one of the first year model either a 2004 or 2005 RTV900 (worksite) with hyd dump and a front bumper to distinguish it from the General purpose model .
Later ,after over 4200 hours. I sold it in good shape although that 2 pc driveshaft set up rattled. and bought either a 2011 or 2012 RTV Xt with the one piece shaft. I think it was the first year for the one piece but may be off a year or 2. In 2019 I sold that RTV in great shape with also over 4200 hours .