No 1st, 2nd, or reverse

Can't get the car into 1st, 2nd, or reverse. I can't physically find 1st or second, and reverse just grinds or makes a whirring noise. Clutch has approx 2000 miles on it, I resealed the trans why it was out. Car was running perfect then why cruising at 35mph I came to a stop and all of a sudden no 1st, 2nd, or reverse