GM Buick/Oldsmobile/Pontiac/Full-Size 1975-1990 Repair Guide

Fenders

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Fenders are adjustable with shims. To add or remove shims, loosen the bolts at the shim locations and carefully apply force with a prybar to provide clearance for adding or removing shims.

Tape fender and door edges with masking tape to prevent damage during replacement.

REMOVAL & INSTALLATION

See Figures 1, 2, 3, 4, 5, 6, 7 and 8

1975 and 1976
  1. Disconnect the negative battery cable then the positive cable.
  2.  
  3. Tape the fender and the door edge.
  4.  
  5. Disconnect the side marker lamp wires.
  6.  
  7. Remove the tie bar to front end panel seal.
  8.  
  9. Disconnect the headlamp wires.
  10.  
  11. Remove the tie bar to fender brace.
  12.  
  13. Remove the cowl to fender brace.
  14.  
  15. Remove the dash to fender top bolt.
  16.  
  17. Remove the hood hinge from the fender and block the hood.
  18.  
  19. Remove the fender to support bolts.
  20.  
  21. Remove the fender to cowl bolts.
  22.  
  23. Remove the fender and filler plate.
  24.  
  25. Remove the fender from the filler plate.
  26.  
  27. Installation is the reverse of removal.
  28.  



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Fig. Fig. 1: 1975 and 1976 fender attachment, all models similar



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Fig. Fig. 2: 1975 and 1976 filler plate attachment, all models similar

1977 to 1990
  1. Disconnect the negative battery cable.
  2.  
  3. Remove the hood and hood hinges.
  4.  
  5. Remove the fender bolt from the battery ground strap, if applicable.
  6.  
  7. Remove the battery and battery tray if they are located on the side to be replaced.
  8.  
  9. Remove any components mounted on the wheel housing/fender assembly on the side to be replaced.
  10.  
  11. Remove the cowl to fender bolts and shims. Note the position and number of shims used.
  12.  
  13. Remove the body to fender bolts.
  14.  
  15. Remove the fender extension bolts.
  16.  
  17. Remove the bolt from the frame brace to fender, if equipped.
  18.  
  19. Remove the bumper filler attaching bolts.
  20.  
  21. Remove the wheelhousing to radiator support bolts.
  22.  
  23. Remove the front end panel to fender bolts.
  24.  
  25. Disconnect the side marker lamp electrical connections.
  26.  
  27. Remove the front fender and wheelhousing with the aid of a helper.
  28.  
  29. Installation is the reverse of removal.
  30.  



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Fig. Fig. 3: Front fender-to-body attachment, 1977 to 1990



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Fig. Fig. 4: Buick and Oldsmobile front fender-to-radiator support attachment, 1977 to 1990



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Fig. Fig. 5: Pontiac front fender-to-radiator support attachment, 1977 to 1990



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Fig. Fig. 6: Buick front end panel dimensions



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Fig. Fig. 7: Oldsmobile front end panel dimensions



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Fig. Fig. 8: Pontiac front end panel dimensions

 
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