Just replaced flywheel and clutch in 2004 jeep tj with 4.0 with a NV 3550 transmission. Jeep has 154000 miles. Transmission did not slip before. Had to take the shift tower off to remove the transmission. Put everything back together and now my transmission is slipping out of 5th gear. Could I have installed the shift tower incorrectly, and if I did, how to make sure l can make it right. Thanks for any help.