overdrive tranny problems

StrokerScamp said
They are a touch weaker than a straight drive 833, but not by much. Their only weak spot if there is one is in the ones with the aluminum case. Since the countershaft turns all the time, the aluminum case sometimes galls. The fix is simply to disassemble the trans and bush the case. A stock OD should be able to hold a stock or mild 383 just fine.

The cluster gear turns all the time but the shaft it rides on does not turn unless the woodruff key at the back breaks off or is not installed. The front hole for the shaft can wallow over time if the trans is beat on , that is what usually happens.

As far as the OP's trans being stuck in gear , something is wrong with the syncros , shift arms or the shifter .