as a torque limiting fuse for the driveline coupling between the transmission and the driveshaft 15 in view of the reduced strength of the frangible portion 50 of sleeve 34 it has been found desirable to support the aft end of sleeve 34 against radial or transverse loads by a suitable sleeve bearing 54 which is supported in an auxiliary tail stock housing 56 sleeve 34 is thus journalled in sleeve bearing 54 auxiliary housing 56 has a flange 58 provided at one end thereof which is secured to the transmission housing 16 by bolts 60 a suitable seal 62 is provided at the end of the housing 56 to retain the transmission lubricant flowing through bearing 54 from escaping similarly an annular seal 64 is provided in the end of sleeve 34 to seal the interior of the sleeve and retain any lubricant such as grease provided on the splines 32 seal 64 is a sliding seal intended to accommodate the longitudinal or axial movement of the shaft 15 as shown in dashed outline in fig1 referring to fig2 and 3 the washer or bulkhead 44 is initially received in a relieved area 66 formed in the splines 36 and swaging tools 68 70 are advanced into the sleeve 34 from opposite ends thereof and register against the opposite faces of the washer 44 tools 68 70 are then forced against the opposite axial faces of the washer 44 deforming the outer periphery thereof outwardly into a recess 52 provided in the inner periphery of the sleeve 34 in the presently preferred practice the washer is initially formed in a conical or belleville configuration as denoted by reference numeral 44 39 in fig3 to facilitate assembly.