WHEN COLD,SHIFT POINTS ARE FINE AND 4TH GEAR LASTS FOR ABOUT A MINUTE,AND THEN [...] HOT NO 4TH. 90K ON TRUCK,REBUILT TRANS,IT NEEDED IT,BUT 4TH CLUTCHES WERE LIKE NEW. SAME PROBLEM. I'VE READ THE ARCHIVES ON THIS PROBLEM, ANY FURTHER INFO. Login to read more.