Chrysler RAM50/D50/Arrow 1979-1993 Repair Guide

Cables

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REMOVAL & INSTALLATION



Front Cable
1979-86 MODELS

See Figures 1, 2, 3 and 4

  1. Elevate and safely support the vehicle on stands.
  2.  
  3. Loosen the parking brake lever fully to loosen the cable. Disconnect the front cable at the rear end.
  4.  
  5. Remove the pull rod assembly and parking brake switch.
  6.  
  7. Disconnect the front cable at the front end from the pull rod. Remove the front cable and pull rod from the tube.
  8.  

To install:
  1. Inspect the pull rod for wear from the ratchet, damage and movement of cable. Replace if necessary.
  2.  
  3. Apply an appropriate amount of chassis grease to each sliding component.
  4.  



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Fig. Fig. 1: Removing the front cable from the brake lever at the rear end



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Fig. Fig. 2: Remove the front cable from the pull rod at the front end



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Fig. Fig. 3: The parking brake pull rod must have a standard stroke after adjustment



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Fig. Fig. 4: Adjust the parking brake light switch once the cables are adjusted

  1. Install the pull rod and cable into the tube. Attach the front cable.
  2.  
  3. Make sure the cable is not twisted during installation.
  4.  
  5. Using the turnbuckle, adjust the cable length, so the balance is parallel with the center line of the vehicle and the brake shoes do not drag.
  6.  
  7. After the parking brake cable has been adjusted, adjust the parking brake switch clamp, so the brake warning light will go out with the pull rod released. The light will come on with the pull rod pulled by one notch.
  8.  

1987-93 MODELS

See Figure 5

  1. Elevate and safety support the vehicle on stands.
  2.  
  3. Inside the vehicle, under the dash, identify and unplug the parking brake indicator switch. Remove the switch and bracket.
  4.  
  5. The end of the cable sheath is held in place by a snapring. Remove it. You are reminded that these snaprings tend to vanish if not removed carefully.
  6.  
  7. Lift the pawl from the ratchet and push the parking brake lever all the way in. In this position, the cable may be disconnected from the lever.
  8.  
  9. Under the vehicle, trace the cable and remove the clips and brackets holding it to the body.
  10.  
  11. Disconnect the cable from the lever assembly. Remove the cable from the vehicle. Don't damage the body grommet while removing it.
  12.  



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Fig. Fig. 5: Make cetain to connect the front cable to the lever assembly correctly-Pick-up trucks

To install:
  1. Route the new cable into position. It's usually easier to attach the inner end to the lever first, then deal with the equalizer end. Loosen the adjusting nuts on the rear cables if necessary.
  2.  
  3. Once both ends are secured, install the clips and brackets holding the cable to the body.
  4.  
  5. Fit the rubber body grommet into place and make certain it is secure.
  6.  
  7. Install the snapring on the end of the cable.
  8.  
  9. Install the brake indicator switch in place and connect the wiring but do not final tighten the switch mount.
  10.  
  11. Adjust the parking brake lever stroke according to procedures given earlier in this section.
  12.  
  13. With the cable correctly adjusted, adjust the switch so that the warning light illuminates when the lever is pulled one notch. Tighten the switch mount.
  14.  

Rear Cable

1979-86 MODELS

See Figure 6

  1. Disconnect the rear cable under the floor and remove the return spring, parking brake lever and cable clamp.
  2.  
  3. Disassemble the rear brakes, refer to "Brake Shoe" REMOVAL AND INSTALLATION.
  4.  
  5. Remove the cable from the rear parking brake lever.
  6.  

To install:
  1. Inspect the pull rod for wear from the ratchet, damage and movement of cable. Replace if necessary.
  2.  
  3. Apply an appropriate amount of chassis grease to each sliding component.
  4.  
  5. Attach the cable into the rear brake assembly. Install the rear brakes including the return spring, parking brake lever and cable clamp.
  6.  
  7. Connect the rear cable under the floor.
  8.  
  9. Make sure the cable is not twisted during installation.
  10.  



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Fig. Fig. 6: Align the groove on the heat protector with that on the No. 3 crossmember bracket

When installing the heat protector to the boot on the right rear cable, align the groove on the heat protector with that on the No. 3 crossmember bracket.

  1. Using the turnbuckle, adjust the cable length, so the balance is parallel with the center line of the vehicle and the brake shoes do not drag.
  2.  
  3. After the parking brake cable has been adjusted, adjust the parking brake switch clamp, so the brake warning light will go out with the pull rod released. The light will come on with the pull rod pulled by one notch.
  4.  

1987-93 MODELS

See Figures 7, 8 and 9

  1. Elevate and safely support the vehicle on stands.
  2.  
  3. Remove the rear wheels.
  4.  
  5. Remove the brake drum.
  6.  


CAUTION
Brake pads and shoes may contain asbestos, which has been determined to be a cancer causing agent. Never clean the brake surfaces with compressed air! Avoid inhaling any dust from brake surfaces! When cleaning brakes, use commercially available brake cleaning fluids.

  1. At the equalizer, disconnect the return spring.
  2.  
  3. With the parking brake released, remove the adjusting nut from the cable to be removed. If only one cable is being removed, loosen the other adjuster to make the job easier. If both cables are being removed, loosen the nuts alternately and evenly.
  4.  
  5. Disconnect the brake cable from the brake shoe. You may find it easier to remove the shoes as a unit, then disconnect the cable.
  6.  
  7. Remove the cable from the backing plate. This can be made easier by feeding an offset box wrench (12mm) over the end of the cable and pushing it up until it reaches the stopper. Push on the wrench to release the tabs on the stopper and pull the cable free from behind the backing plate.
  8.  
  9. Remove the clips and brackets holding the cable to the body. Remove the cable from the vehicle.
  10.  
  11. When reinstalling, thread the cable into position. Make certain the stopper at the brake backing plate is securely fitted and the tab is engaged.
  12.  



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Fig. Fig. 7: Rear parking brake cable removal and installation components-1983-93 Pick-ups



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Fig. Fig. 8: Use a box end wrench to remove the parking brake cable from the rear brake assembly-1983-93 Pick-up trucks



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Fig. Fig. 9: Adjusting the rear brake shoes to specification will allow the brakes to properly adjust themselves after installation-1987-93 Pick-ups

  1. Install the cable end to the brake shoe. If the brakes were removed, reinstall them.
  2.  
  3. Turn the brake shoe adjuster to set the outside diameter of the shoes to 9.45-9.47 in. (240.0-240.5mm) for 1983-86 rear-wheel drive and 9.96-9.98 in. (253.0-253.5mm) for all other Pick-ups. This is an important dimension and must be observed.
  4.  
  5. Install the brake drum.
  6.  
  7. Connect the brake cable to the equalizer and tighten the adjuster nut just enough to remove slack from the cable.
  8.  
  9. Install the return spring correctly.
  10.  
  11. Install the rear wheels.
  12.  
  13. Adjust the parking brake lever travel according to instructions given previously in this section.
  14.  
  15. Lower the vehicle to the ground.
  16.  

ADJUSTMENT



See Figures 10, 11 and 12

  1. Pull the lever up with a force of about 66 lbs. (300 N) and count the number of notches or clicks. Correct number is 16 or 17.
  2.  
  3. If the number of clicks is incorrect, elevate and safely support the vehicle on stands; block the front wheels.
  4.  
  5. Under the vehicle, loosen the adjusting nuts to slacken each brake cable (one runs to each rear wheel from the equalizer).
  6.  
  7. Tighten the adjusting nuts just to the point of taking the slack out of the cable. Repeatedly pull and release the brake lever to adjust the rear brake shoes.
  8.  
  9. Tighten the adjusting nuts until the lever has the correct number of clicks.
  10.  

Make certain that the joint and equalizer are at right angles when the adjustment is finished. An angle other than 90° will cause uneven brake application.

  1. Fully release the parking brake lever and remove each rear wheel and brake drum. Make certain the brake lever is just touching the shoe.
  2.  


WARNING
If the parking brake cable is pulled too far, the adjuster lever will not fit the adjuster, resulting in faulty operation.

  1. Reinstall the drum and install the wheel.
  2.  
  3. Apply and release the parking brake once or twice. With the brake fully released, spin each rear wheel by hand and check for dragging brakes.
  4.  



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Fig. Fig. 10: Pull the parking brake handle out until the parking brakes will hold the vehicle from rolling-Pick-ups



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Fig. Fig. 11: Under the truck, tighten the nuts to the cables so that the equalizer forms a 90° angle with the bracket-Pick-up trucks



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Fig. Fig. 12: Remove the rear drums and check to make sure that the brake lever is just touching the brake shoe

 
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