My 85 Riviera TType is getting weird.Just sometimes (only w/warmed up) It wont disengage at stops,eng wants to die,but just as it bout ready to die,trans will disengage and eng will not want to die.When this happends,you can catch it by putting it in neutral,and then put it back in drive with no problems.Wants to do this whether Im in 3rd or 4th,theres no diff. anybody knows whats happening ???? Other than that,trans shifts great w/no slippage,even at wot.