GM Cutlass RWD 1970-1987 Repair Guide

JACKING

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See Figures 1, 2, 3, 4 and 5

There are certain safety precautions which should be observed when jacking the vehicle. They are as follows:

  1. Always raise the car on a level surface.
  2.  
  3. Set the parking brake if the front wheels are to be raised. This will keep the car from rolling backward off the jack.
  4.  



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Fig. Fig. 1: Some early models have jacking slots in the bumpers

  1. If the rear wheels are to be raised, block the front wheels to keep the car from rolling forward.
  2.  
  3. If the vehicle is being raised in order to work underneath it, support it with jackstands. Do not place the jackstands against the sheet metal panels beneath the car or they will become distorted.
  4.  



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Fig. Fig. 2: Do not work beneath a vehicle supported only by a tire changing jack. Always use jack stands which are properly positioned under the car

The service operations in This guide often require that one end or the other, or both, of the car is raised and safely supported. The ideal method, of course, would be a hydraulic hoist. Since this is beyond both the resource and requirement of the do-it-yourselfer, a small hydraulic, screw or scissors jack will suffice for the procedures in this guide. Two sturdy jackstands should be acquired if you intend to work under the car at any time. An alternate method of raising the car would be drive-on ramps. These are available commercially or can be fabricated from heavy boards or steel. Be sure to block the wheels when using ramps. Never use concrete blocks to support the car. They may break if the load is not evenly distributed.



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Fig. Fig. 3: Vehicle lifting and jacking points



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Fig. Fig. 4: When working under the vehicle, always use properly positioned jackstands to support the car

Regardless of the method of jacking or hoisting the car, there are only certain areas of the undercarriage and suspension you can safely use to support it. See the illustration, and make sure that only the shaded areas are used. In addition, be especially careful that you do not damage the catalytic converter. Remember that various cross braces and supports on a lift can sometimes contact low hanging parts of the car.



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Fig. Fig. 5: Later models that use a scissors jack that fits into frame holes on both sides of the car

 
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