This is the Ring Nut for the Rear Diff Caliper Mount and is Right Hand Thread.
O.D. = Approx. 64.5mm and is 10mm thick.
Some models are Left Hand Thread instead, we have both in stock let us know if you need the Left Hand Thread, Please order # 46118-115-00LT
This Seal is for the Locking Rear Diff. Axles. These have a Solenoid that acticates from 1-WD to 2-WD for both the HiSun and ODES 800 and 1000. Odes does not show a Part # for this seal.