Chevrolet Equinox Service Manual: Propeller Shaft Phasing Correction Driveshafts Propeller Shaft Assembly

One Piece Propeller Shaft Phasing Correction

An out of phase single-piece propeller shaft is very unusual.If the phasing inspection procedure revealed that prop shaft is notphased correctly, the welded yokes are in the wrong position, orthe shaft is damaged due to twisting and the propeller shaftrequires replacement to restore proper cancellation of theU-joints.

Multiple-Piece Propeller Shaft Phasing CorrectionIf the phasing inspection procedure revealed that a propshaft is not phased correctly to the mating slip yoke, the end yokeis welded on in the wrong position, the slip yoke is mis-aligned tothe stub shaft, or the shaft is damaged due to twisting.If the shaft if visibly damaged, it requiresreplacement.If the shaft exhibits no visual physical defects or damage,perform the following:Remove the slip yoke from the stub shaft to determine if itis possible to reinstall the slip yoke in a different position onthe stub shaft.If the stub shaft is keyed to ensure proper alignment of thestub shaft and the slip yoke, then the propeller shafts requirereplacement to restore proper cancellation of the U-joints.If the stub shaft is not keyed, attempt to re-align the frontshaft and slip yoke to each other. Repeat the inspection procedureto confirm the results.If proper phasing cannot be obtained, the propeller shaftrequires replacement to restore proper cancellation of theU-joints.