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These instructions are from an older year vehicle but the U-joints change the same way.
REMOVAL & INSTALLATION
Single Type U-Joint
See Figures 1, 2, 3, 4 and 5
Fig. 1: One-piece driveshaft with a slip yoke
Fig. 2: Matchmark the driveshaft and yoke for balance reasons
Fig. 3: Removing the U-clamp
Fig. 4: Carefully separate the driveshaft from the yoke; a prytool may be needed for this
Fig. 5: To keep the U-joint cups from falling off, a good practices is to tape the U-joint together
Matchmark the driveshaft yoke and axle pinion flange.
Remove the U-bolt nuts and U-bolts attaching the yoke to the axle flange.
Separate the yoke from the flange. It may be necessary to pry it free with a small prybar. Immediately after separation, wrap tape around the U-joint caps to keep them from falling off.
Slip the driveshaft off the transmission splines.
Installation is the reverse of removal. Align the yoke-to-flange matchmarks. Tighten the U-bolt nuts to 15 ft. lbs. (20 Nm).
TWO-PIECE DRIVESHAFT/COUPLING SHAFT EXCEPT F-SUPER DUTY STRIPPED CHASSIS AND MOTOR HOME CHASSIS
See Figure 6
Fig. 6: Two-piece driveshaft with a slip yoke at the transmission end
Slip the driveshaft off the coupling shaft splines.
Remove the center bearing.
Slide the coupling shaft from the transmission shaft splines.
Clean all parts and check for damage. Do not remove the blue plastic coating from the male splines.
Installation is the reverse of removal. Coat the splines with chassis lube. Tighten the center bearing support bolts to 50 ft. lbs. (68 Nm). Align the yoke-to-flange matchmarks. Tighten the U-bolt nuts to:
5/16 in.-18: 15 ft. lbs. (20 Nm)
3/8 in.-18: 17-26 ft. lbs. (23-35 Nm)
7/16 in.-20: 30-40 ft. lbs. (41-54 Nm)
TWO OR THREE-PIECE DRIVE SHAFT-SUPER DUTY STRIPPED CHASSIS AND MOTOR HOME CHASSIS
See Figure 7
Fig. 7: Two-piece driveshaft with a fixed yoke at the transmission end
Remove the rearmost center bearing.
Remove the center driveshaft from its mating yoke.
Remove the next center bearing.
Remove the front driveshaft from the transmission splines.