I recently purchased a Case 1740 skid loader. The drive train was rebuilt recently from the looks of things - last three years. I'm having an issue with the right side forward drive not working. I tried adjusting (tightening) the forward clutch (Right rear clutch) but it doesn't appear to have helped. Wondering if its possibly glazed or ? The other other clutches seem to be working fine. Looking for some troubleshooting ideas on what can be done.