Volkswagen Air Cooled 1949-1969 Repair Guide

Diagonal Arm

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REMOVAL & INSTALLATION



  1. Remove the wheel shaft nuts.
  2.  


CAUTION
Do not raise the car to remove the nuts. They can be safely removed only if the weight of the car is on its wheels.

  1. Disconnect the driveshaft on the side to be removed.
  2.  
  3. Remove the lower shock absorber mount. Raise the car and remove the wheel and tire.
  4.  
  5. Remove the brake drum, disconnect the brake lines and emergency brake cable, and remove the backing plate.
  6.  
  7. Matchmark the torsion bar plate and the diagonal arm with a cold chisel.
  8.  
  9. Remove the four bolts and nuts which secure the plate to the diagonal arm.
  10.  
  11. Remove the pivot bolts for the diagonal arm and remove the arm from the car.
  12.  

Take careful note of the washers at the pivot bolts. These washers are used to determine alignment and they must be put back in the same place.

  1. Remove the spring plate hub cover.
  2.  
  3. Using a steel bar, lift the spring plate off of the lower suspension stop.
  4.  
  5. On Type 1 models, remove the five bolts at the front of the fender. On all others, remove the cover in the side of the fender.
  6.  
  7. Remove the spring plate and pull the torsion bar out of its housing.
  8.  

There are left and right torsion bars designated by an (L) or (R) on the end face. (Coat any rubber bushings with talcum powder upon installation. Do not use graphite, silicon, or grease.

To install:

  1. Insert the torsion bar, outer bushing, and spring plate. Make sure that the marks you made earlier line up.
  2.  
  3. Using two bolts, loosely secure the spring plate hub cover. Place a thick nut between the leaves of the spring plate.
  4.  
  5. Lift the spring plate up to the lower suspension stop and install the remaining bolts into the hub cover. Tighten the hub cover bolts.
  6.  
  7. Install the diagonal arm pivot bolt and washers and peen it with a chisel. There must always be at least one washer on the outside end of the bolt.
  8.  
  9. Align the chisel marks and attach the diagonal arm to the spring plate.
  10.  
  11. Install the backing plate, parking brake cable, and brake lines.
  12.  
  13. Reconnect the shock absorber. Install the brake drum and wheel shaft nuts.
  14.  
  15. Reconnect the driveshaft. Bleed the brakes.
  16.  
  17. Install the wheel and tire.
  18.  
  19. Check the suspension alignment.
  20.  

 
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