GM Full-Size Trucks 1988-1998 Repair Information

Front Driveshaft

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REMOVAL & INSTALLATION



Solid Axle

See Figure 1

Chevrolet and GMC use U-bolts or straps to secure the driveshaft to the pinion flange. Use the following procedure to remove the driveshaft.

  1. Jack up your vehicle and support it with jackstands.
  2.  
  3. Scribe aligning marks on the driveshaft and the pinion flange to aid in reassembly.
  4.  



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Fig. Fig. 1: Front driveshaft-V-Series

  1. Remove the U-bolts or straps at the axle end of the shaft. Compress the shaft slightly and tape the bearings into place to avoid losing them.
  2.  
  3. Remove the U-bolts or flange bolts at the transfer case end of the shaft. Tape the bearings into place.
  4.  
  5. Remove the driveshaft.
  6.  

To install:
  1. Install the driveshaft. Make certain that the marks made earlier line up correctly to prevent possible imbalances. Be sure that the constant velocity joint is at the transfer case end. Tighten the U-bolts to 15 ft. lbs. (20 Nm); flange bolts to 75 ft. lbs. (101 Nm).
  2.  

Independent Axle

See Figures 2 through 6

  1. Jack up your vehicle and support it with jackstands.
  2.  



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Fig. Fig. 2: Front driveshaft-K-Series



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Fig. Fig. 3: Scribe aligning marks on the driveshaft and each flange to aid in reassembly



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Fig. Fig. 4: Remove the flange bolts and retainers at each end of the shaft

  1. Scribe aligning marks on the driveshaft and each flange to aid in reassembly.
  2.  
  3. Remove the flange bolts and retainers at each end of the shaft. Remove the slip yoke from the front axle.
  4.  
  5. Push the driveshaft forward until it clears the transfer case flange and remove it. If the shaft is difficult to disengage from either flange, pry it loose; never hammer it loose!
  6.  
  7. Use a piece of tape to hold the U-joint caps in place. Remove the driveshaft.
  8.  
  9. Install the driveshaft. Make certain that the marks made earlier line up correctly to prevent possible imbalances. Be sure that the constant velocity joint is at the transfer case end. Tighten the axle end flange bolts to 15 ft. lbs. (20 Nm); the transfer case end flange bolts to 75 ft. lbs. (101 Nm).
  10.  



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Fig. Fig. 5: Push the driveshaft forward until it clears the transfer case flange, then remove it



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Fig. Fig. 6: Use a piece of tape to hold the U-joint caps in place

 
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