hello i'm new to this so here we go have a jcb 3dii backhoe when its started and when its in neutral position its engages forward drive an neutral becomes somewhere between neutral an reverse but when you pull the level back into reverse it stops like it locks up (but no noise or clucking) an seems to want to go backwards but doesn't . with wheels off the ground an not running an in neutral can spin the wheels by hand so im thinking its in the torque convertor have had a new oil filter an oil put in it, didn't make a difference. have cleaned the direction control valve and the modulating valve can't tell if they are worn but by eye look ok any help is appreciated thanks
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