This is the Yoke Coupler type Rear Differential for the HiSun that has the Axle Seal I.D. of 70mm and Axles to fit.This also has the Yoke Mount with the Disc Plate Mount.Please Measure the I.D. of the Seal Size, 70 x 90 x  9  is for this Rear Diff.

Normally for 2018ish and up HiSun 450-750 engines.Older Models have 15 tooth.