No 3-4 Upshift

The 3-4 shift valve stuck in downshifted position. The 3-4 shift valve bore plug leaking. Leaking orifice control valve bore plug. Leaking direct clutch and oil control rings. Cut direct clutch piston outer lip seal. Large oil control ring leaking on 2-3 accumulator piston. Leaking governor oil control rings or worn ring area in case bore. Worn case or direct clutch drum bushing. Governor loose on output shaft. Sticking 4-3 back-out valve.