I had the same problem as jthuma94 described.I pulled the transmission and grinded a little on the splines.I reinstalled the tranny,same problem.I pulled the tranny back out and decided the hub on the clutch disk was too tall.I ground down the hubs surface where the splines are.I Made sure that i was grinding the side that slides to the transmission.Then i knocked off all burrs and sharp edges the grinder left on the hub.I reinstalled it,it shifts like a dream.

1951 3100 Chevrolet
1951 Chevrolet Suburban Carryall
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