my trans has the first 2 shifts no problem/no slipping /no hard shift plenty of power but stopped shifting into hi gear---red fluid-no metal in pan. Visit AutoGuysLand to review why manual transmission wont go into gear if you concern./
It could rule out low fluid level or a plugged transmission fluid filter. It is also internal hydraulic leaks in the valve body or failing internal transmission seals found on clutch pack pistons and piston o-rings.
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