transmission wont go in reverse on 1996 Volkswagen Golf TDI

when i shift in reverse it trys to backup then kicks it out of gear and grinds really bad. If the car is on jackstands and u put it in reverse it turns the tires fine but still sounds like it is grinding or really rough sounding. do i need a new transmission or is it worth having this fixed.However the car drives grat its a manual tranny

Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer
If it is a manual it sounds like the synchronizers or the clutch.