2009-2010 Polaris RZR Factory Service Manual, Page 294Get this manual
TRANSMISSION With the transmission in neutral, lubricate and install the thrust washer, drum gear, plate, springs, contact pins and the gear position sensorO-ring assemblyVerify the contact pins are aligned as shown with the transmission in neutralTorque the retaining screws to specification13Install the reverse idler lower washer, needle bearing, gear, upper washer and retaining ring onto the idler shaft