Sonnax 4T60E 4T65E Transmission Differential Lube Tube Retainer Kit 84532-01K The flexible hose for the differential lube tube line softens as temperature increases in the 4T60-E and 4T65-E units, causing pressure in the line to blow the steel tube out of the accumulator cover, resulting in loss of critical lube oil. The Sonnax differential lube tube retainer kit 84532-01K clamps the lube tube securely in place, preventing loss of critical lube oil. Contents Top Clamp Bottom Clamp Screw