I don't care for NICHE after a bad expierience with some rear axles. If you do the RACK BOSS (SATV) you will probably never have to deal with installing another one.. https://www.amazon.com/SuperATV-RackBoss-Pinion-Polaris-2011-2016/dp/B07NDG8P31/ref=sr_1_2?crid=3MXMTDO90L3YB&keywords=2011+Polaris+Ranger+crew+800+rack+&+pinion&qid=1666741720&qu=eyJxc2MiOiIwLjc1IiwicXNhIjoiMC4wMCIsInFzcCI6IjAuMDAifQ==&sprefix=2011+polaris+ranger+crew+800+rack+&+pinion,aps,210&sr=8-2&ufe=app_do:amzn1.fos.c3015c4a-46bb-44b9-81a4-dc28e6d374b3