Chevrolet Equinox Service Manual: Transfer Case Output Flange Runout Measurement 4WD Transfer Case

Special Tools

GE-7872Magnetic Base Dial Indicator Set, or equivalent

Note:This measurement procedure is intended to measuretransmission or transfer case output flange runout for systems witha constant velocity (CV) joint, rubber coupling or bolt-on U-jointyoke at the transmission or transfer case.

Place the transmission in NEUTRAL.Raise and support the vehicle. Refer toLifting and Jacking the Vehicle.If equipped with a CV joint, measure the transmission ortransfer case output flange radial runout on the machined surfaceof the prop shaft front CV joint housing, as close to the flange aspossible:Clean the surface of the prop shaft front CV joint housingjust rear of the transmission or transfer case outputflange.Mount a dial indicator set,GE-7872Magnetic Base Dial Indicator Set, or equivalent, and position the dial indicator tocontact the prop shaft front CV joint housing as close to thetransfer case output flange as possible.If equipped with a rubber coupling or bolt-on U-joint yoke,measure the transfer case output flange radial runout on themachined surface of the flange pilot area:Mark the position of the prop shaft to the transmission ortransfer case output flange.Separate the propshaft from the transmission or transfer caseoutput flange.Clean the surface of the flange pilot area.Mount a dial indicator set,GE-7872Magnetic Base Dial Indicator Set, or equivalent, and position the dial indicator tocontact the pilot area as close to the end of the pilot aspossible.Rotate the transmission or transfer case output flange byhand to locate the low spot.Set the dial indicator to zero on the low spot.Rotate the flange or shaft by hand and record the amount ofradial runout.Compare the runout of the flange or shaft to the runouttolerance specifications guideline.If the transmission or transfer case output flange runoutexceeds the specification, the flange or shaft requiresreplacement.