GM 84669663
Drive Shaft, Front

The replacement process for the front propeller shaft starts with acquiring clamp pliers - narrow jaw (J 43218). Your first step should be to make precise reference markings between propeller shafts and axles as well as between propeller shafts and wheel drive shafts and pinion flanges and output shafts to ensure proper remanufacturing of the original component relation. You should first apply the proper Transfer Case model procedure to eliminate the shield before lifting the vehicle to continue. A double clamp style boot on the vehicle requires removal of the Transfer Case clamp by using a flat-bladed tool to pry up its exposed end. When removing the propeller shaft it is necessary to make reference marks which show position relationships with the front axle pinion yoke and to prevent damage to the injection joints. Disconnect the propeller shaft from the front axle pinion yoke by removing its bolts and yoke retainers while protecting bearing roller loss through tape application on the bearing caps. Remove the propeller shaft forward by detaching the boot from the Transfer Case output shaft according to need. The Transfer Case output shaft splines need an inspection for proper lubrication state because insufficient lubrication requires application of gm p/n 12345879 or canadian p/n 10953511 which meets gm specification 9985830. Installation requires you to put a new clamp into the propeller shaft boot groove before adding the propeller shaft splines to the Transfer Case output shaft. A user can easily put single clamp style boot splices onto the Transfer Case output shaft. Reattach the propeller shaft to the front axle pinion yoke by positioning its reference marks as before and fasten it with yoke retainers and bolts while torquing them to 25 nm (18 ft. Lbs.). Once the boot covers the Transfer Case output shaft groove, follow with putting on the Transfer Case shield if needed and using clamp pliers - narrow jaw (J 43218) to crimp the clamp (if required) before lowering the vehicle.

The process to replace the one-piece propeller shaft begins by using reference marks on all driveline components relative to the propeller shaft and axles before disassembly and includes propeller shafts, drive axles, pinion flanges and output shafts. The intention is to place these components exactly as removed, following published specifications and torque values. The first step entails lifting your car and then making reference marks that connect the propeller shaft to both rear axle pinion yoke and transmission or Transfer Case. After removing rear axle pinion yoke retainers and bolts the propeller shaft should be slid forward to disconnect from the yoke while avoiding slope noise on yoke ears or jamming tools between joints to stop injection joint cracking. The propeller shaft requires next you push it toward the rear to detach it from the transmission or Transfer Case before removing it from the vehicle. Assess the Slip Yoke splines to determine the grease condition before applying gm p/n 12345879 or equivalent grease for rwd with automatic transmission only. The propeller shaft installation requires transmission or Transfer Case alignment with reference marks followed by proper installation to the rear axle pinion yoke with the same reference mark alignment. Before lowering the vehicle, completely install yoke retainers with their bolts and secure the yoke retainer bolts to 25 nm (18 ft. Lbs.).

Start the two-piece propeller shaft replacement process by acquiring clamp pliers with narrow jaw functionality (J 43218). Begin by elevating the vehicle while you make notice marks on all driveline components starting from the rear propeller shaft to its pinion yoke connection on the rear axle and extending to the front propeller shaft attachment on transmission or Transfer Case. Start by using the clamp pliers - narrow jaw (J 43218) to remove clamps securing the boot fastener at both ends of the front propeller shaft stub shaft and the rear propeller shaft Slip Yoke by lifting their exposed edges. The next step requires you to separate bolts and yoke retainers from the rear axle pinion yoke. Use careful movements to pull the rear propeller shaft in forward direction away from the rear axle pinion yoke before rotating it backwards from the front propeller shaft stub shaft until it can be pulled from the vehicle. The front propeller shaft stub shaft boot needs to be removed first while the center bearing support nuts and center bearing support can be uninstalled next. The front propeller shaft installation requires a slide toward the transmission or Transfer Case for vehicles not equipped with rpo mw7 while vehicles with this feature need the shaft connected to the transmission pinion yoke. Reposition the reference marks created in the removal phase before securing bolts without applying torque. Position the center bearing support while torquing its nuts to 40 n.m (30 lb ft) then fasten the yoke retainer bolts to 25 n.m (18 lb ft). You should inspect the front propeller shaft stub shaft splines for proper grease lubrication; supply with chassis grease gm p/n 12377985 or equivalent for additional lubrication. Mount the boot along with two new clamps onto the front propeller shaft stub shaft when applicable. The last step includes connecting the rear propeller shaft Slip Yoke to the front propeller shaft stub shaft before installation of the rear propeller shaft onto the rear axle pinion yoke while keeping reference marks aligned. Conclude the repair by installing the yoke retainers and bolts while applying torque to 25 n.m (18 lb ft) on the yoke retainer bolts followed by boot clamp crimping with clamp pliers - narrow jaw (J 43218) until reaching the proper dimensions before returning the vehicle back down.

The first step to replace the one-piece propeller shaft requires making precise reference marks on every driveline component that relates to axles and shafts before disassembly so the pieces can be reassembled in their original positions. The next step should be a vehicle lift along with unique markings of the propeller shaft relative to the axles' pinion yoke and transmission or Transfer Case. The first step requires removing the bolts along with yoke retainers which connect to the rear axle pinion yoke. Keep the injection joints safe from damage by refraining from using tools between the Universal Joint and the yoke along with preventing you from pounding the yoke ears. First disconnect the propeller shaft from the rear axle pinion yoke forward before sliding it backward to remove it from the transmission or Transfer Case and finally taking out the propeller shaft from the vehicle. The installer should examine the Slip Yoke splines to check for sufficient lubrication and apply gm p/n 12345879 grease if needed for rwd automatic transmission models only. After connecting the propeller shaft to the transmission or Transfer Case the installer needs to align the reference marks they marked during disassembly. The process continues with connecting the propeller shaft to the rear axle pinion yoke by following the reference marks made during removal. The yoke retainers together with their bolts need installation before securing the yoke retainer bolts at a torque specification of 25 n.m (18 lb ft). After these procedures are complete lower the vehicle.

You should start the front propeller shaft replacement process by developing markings that represent the original arrangement between all driveline elements which include propeller shafts together with wheel drive shafts and output shafts and pinion flanges. The j 43218 clamp pliers (J 43218) allows you to open the rear propeller shaft boot clamp through its exposed end. Before disconnecting the front axle pinion yoke you must wrap bearing caps in tape to stop the loss of bearing rollers. The removal process for the propeller shaft should be performed without excessive force to minimize injection joint damage. Proceed with sliding the propeller shaft forward after removing its boot from the transfer case output shaft. Test the splines on the transfer case output shaft for appropriate lubrication and apply gm p/n 12345879 (Canadian P/N 10953511) or equivalent product if needed. The first step involves installing a new clamp onto the propeller shaft boot after which the propeller shaft splines should be inserted into the transfer case output shaft to become reconnected to the front axle pinion yoke using reference marks for alignment. Fasten the yoke retainers then tighten bolts to 25 nm (18 ft. Lbs.) while making sure the boot rests properly against the output shaft. Finish the work by crimping the rear propeller shaft boot clamp using j 43218 until the required dimensions are met. Then reinstall the transfer case shield if needed before lowering the vehicle.

Install the boot onto the transfer case output shaft until it snaps into the groove, crimp both clamps using the Clamp Pliers - Narrow Jaw (J 43218), and lower the vehicle.

Slide the front propeller shaft rearward from the transmission or transfer case.