Q: How to Properly Service and Repair the Drive Shaft on Buick Rendezvous?
A: A replacement process for the propeller shaft begins with vehicle lifting and support. Make reference marks on the propeller shaft at its transfer case flange before unbolt the propeller shaft-to-transfer case flange bolts. After properly marking the propeller shaft at its torque tube flange you can remove propeller shaft-to-torque tube flange bolts. Pull the propeller shaft toward the rear part of the vehicle before taking it out. Start propeller shaft installation by connecting it to the torque tube flange then align the reference marks found on both components. Before the assembly process users should clean the threaded sections and apply threadlocker GM P/N United States 12345493 P/N Canada 10953488 or equivalent to the threads. The bolt installation should be done by hand to maintain correct alignment of components where each pair of bolts features a crescent washer. Slightly push the propeller shaft until it reaches the rear of the vehicle and then position it to the transfer case flange with reference mark alignment. When installing bolts for the propeller shaft and transfer case assembly keep crescent washers on the pairs and tighten the bolts in a crossed sequence to 33 Nm (24 ft. lbs.). Afterward the propeller shaft requires cross sequential torquing to 33 Nm (24 ft. lbs.) on the torque tube bolts before lowering the vehicle.
Q: How to Ensure Proper Alignment When Replacing the Drive Shaft on Buick Rainier?
A: Begin by lifting the vehicle properly and then create precise markings for all driveline components that position them against the propeller shaft and axles and pinion and output shafts and flanges so the installation will maintain the initial components' relationship. When removing the bolts from the pinion yoke rear axle retainer avoid hammering the yoke's ears and refraining from using tools between universal joints for the sake of avoiding injection joint fractures. First disconnect the prop shaft from its position at the rear axle pinion yoke through a forward sliding motion before removing it from transmission or Transfer Case position by pulling it rearward thus completing the prop shaft removal process. The Slip Yoke splines need inspection for proper grease application before installation while lubrication should be provided if necessary. Position the propeller shaft into the transmission or Transfer Case according to reference marks removed previously before fitting it to the rear axle pinion yoke by using the same reference points. Drive the vehicle down then install the yoke retainers and bolts while tightening them to 20 nm (15 ft. Lbs.).