It is my understanding that Advanced Adapters has dropped the Ranger Overdrive unit from its product line....
All that is available now are some gaskets and seal sets and some input bearing and drive sleeves...no gears and little hard parts...
https://www.advanceadapters.com/cate...ccessories/92/
Hopefully bearings will be available from specialty bearing suppliers...gears if damaged...no idea where these would be available...
Good luck
