I just got my Borg-Warner T-19 back from getting rebuilt and installed in my tow rig. Nice and quite now, gee I thought it was supposed to be noisy, but now it won't hold 4th. It goes in, but let off the throttle and it pops out. Doesen't seem to engage as deeply as 1,2,&3rd. So look in the Haynes and they list this exact problem, say to retorque tranny to bellhousing bolt and make sure clean and aligned. Did all that. HELP, supposed to be using it tommorow evening.