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REMOVE REAR SEAT AND PACKAGE SHELF TO GAIN ACCESS TO THE UPPER SHOCK ATTACHING NUTS.REMOVE UPPER ATTACHING NUTS. RAISE VECHICLE REMOVE REAR WHEEL AND SUPPORT THE LOWER CONTROL ARM WITH A JACK REMOVE LOWER SHOCK ABSORBER MOUNTING BOLT. REMOVE SHOCK ABSORBER ASSEMBLY FROM THE VECHICLE. COMPRESS THE COIL SPRING WITH THE PROPER SPRING COMPRESSOR TOOL. REMOVE CENTER RETAINING NUT HOLDING THE UPPER MOUNTING INSULATOR. SLOWLY DECOMPRESS THE COIL SPRING.REMOVE THE MOUNTING INSULATOR AND THE COIL SPRING. REMOVE THE COIL SPRING. TO INSTALL COMPRESSED COIL SPRING ONTO THE STRUT ASSEMBLY. BE SURE TO THE END OF THE SPRING IS IN THE NOTCH ON THE LOWER SEAT.INSTALL UPPER MOUNTING INSULATOR. YOU WILL NEW LOCKNUT FOR THE CENTER RETAINING NUT OF THE COIL SPRING. CENTER RETAINING NUT AND TORQUE THE NUT TO 13 TO 17 FT LBS. SLOWLY REMOVE THE SPRING COMPRESSOR TOOL. INSTALL SHOCK ABSORBER ASSEMBLY IN THE VECHICLE AND INSTALL THE MOUNTING FASTERNERS AND TORQUE LOWER MOUNTING BOLTS TO 72 - 87 FT LBS. INSTALL WHEEL.LOWER VECHICLE. WARNING COIL SPRING UNDER EXTREME LOADS WHEN COMPRESSED.BESURE TO PROPERLY ALIGN THE SPRING WITH THE COMPRESSING TOOL TO PREVENT PERSONAL INJURY FROM THE SPRING RELEASING UNEXPECTEDLY.
early 90's Lincoln town cars have rear air bag suspension and are very prone to failure. cost of one air bag is well close to 250 dollars.
this is a inexpensive fix for that issue. it is possible to install coil spring in replace of the air bags. you will lose the air ride but the cost will be under 100 dollars for both compared to 500 dollars for air ride replacement bags.
the coils that fit are the same year grand marque ford/mercury cars. so when ordering you order for same year as you car grand marque rear springs,
after market or even dealer cost under 100 dollars. they come will the spring seat as the set.
the repair is raise vehicle and support with jack stands. disconnect the lower shock mount so that it allows the rear axle to travel down. this will need to be done for the instillation of the new replacement springs.
next you will need to disconnect the air lines that go to each air back and pull the clips holding the top of the air bag into the chassis of the car. the bottoms float free so this is all that holds them in the car.
remove the air bags out of vehicle and tie air line up and away out of the travel of the car.
install the new spring seats on the rear axle and upper chassis mount.
install the spring top first. you may need to have an assistant pull down on that side of the rear axle to get enough clearness to get the bottom in the seat. you may also try jacking up the opposite side so the side you are working on travels down easier.
after both sides are in there upper and lower seated position.
jack up on the rear axle to install the lower shock mounts back in there original position. after done lower vehicle and recheck all seats to insure they are properly seated. if so you have completed the repair.
this will take no more that two hours start to finish. if you are familiar with a car it may take even less time.
Nope the Sonoma had a 2 plus 1 leaf spring system. With your Sonoma only having one leaf spring, it sounds like the previous owner has installed and lowering kit which was a one leaf system to give the Sonoma a lower and softer stance.
Gives it more like a car ride, but you lose out on your ride height and load capacity to carry things in the bed.
The ride height of a vehicle is controlled by the springs not struts unless a strut mount has given away. the rear suspension on your regal has a transverse spring and i think it is made up of a fiberglass/composite material. you won't be seeing a coil or a old leaf spring on this set up. the spring may just be weak or cracked, it sits left to right (transverse) mounted in center with ends hanging down attached to your trailing arms(like a upside down u)there are links that connect the spring to suspension arms that actually push/pull on the trailing arms that give the spring it's function. (it vaguely resembles a old corvette suspension as supporting the weight) not as technical or engineered as the vettes suspension though.
Use a spring compressor to clamp the spring down (Be Careful). disconnect strut from lower control arm, and the 3 or 4 bolts under the hood ontop of the strut tower. Remove strut and spring, remove spring from strut (Still Compressed), put spring on new strut (Still Compressed), Install bolts under hood, aka strut tower, reconnect lower control arm, slowly uncompress the spring and make sure it seats properly. Take it an alignment shop to get your front end re-aligned.
This is for the lower control arm:
The inner end of the lower control arm is attached to a removable crossmember. The outer end is attached to the steering knuckle pin and ball joint assembly.
Jack up the car and support it on axle stands under the subframes.
Remove the brake drum or caliper and rotor from the spindle.
Disconnect the steering arm from the knuckle pin.
Remove the lower ball joint stud cotter pin and nut.
Separate the ball joint from the knuckle pin using a ball joint removal tool.
Disconnect the sway bar from the control arm.
Unbolt the strut rod.
Remove the inner pivot bolt and the control arm. To install:
Reverse the removal procedure; do not tighten inner pivot bolt until car weight is on wheels. Tighten ball joint retaining nut to 40 ft. lbs. through 1976, 75 ft. lbs. thereafter, strut rod bolts to 75 ft. lbs., sway bar bolts to 8 ft. lbs., steering arm bolts to 65 ft. lbs. through 1979, 55 ft. lbs. thereafter, and control arm inner pivot bolt to 95 ft. lbs. through 1976, 110 ft. lbs. thereafter.
This is for the coil spring.....see if maybe you missed a step in here:
Remove the shock absorber.
Install a spring compressor through the upper spring seat opening and bolt it to the lower spring seat using the lower shock absorber mounting holes.
Remove the lower spring seat pivot retaining nuts, then tighten the compressor tool to compress the spring about 1" (25.4mm).
Jack up the front of the car and support it on axle stands at the subframe (allowing the control arms to hang free).
Remove the front wheel and pull the lower spring seat out away from the car, then slowly release the spring tension and remove the coil spring and lower spring seat. To install:
Place the spring compressor through the coil spring and tape the rubber spring cushion to the small diameter end of the spring (upper).
Place the lower spring seat against the spring with the end of the coil against the formed shoulder in the seat. The shoulder and coil end face inwards, toward the engine, when the spring is installed.
Place the spring up against the upper seat, then align the lower spring seat pivot so that the retaining studs will enter the holes in the upper control arm.
Compress the coil spring and install the spring.
Then install the wheel and tire and lower the car to the floor (to place weight on suspension).
Install and tighten lower spring seat spindle retaining nuts and tighten them to 35 ft. lbs.
Remove the spring compressor and install the shock absorber.
No you don't. When you buy the parts there should be a bolt in each box. With the tires on the ground. Look at the lower control arms with a rubber bushing on the end. You will see a bolt hole in the middle of the bushing. Put the bolt in from the bottom and screw it in. This will help keep it compressed. After that jack the car and remove the tire. Then remove the two bolts up top, then the one on the bottom.Then remove the one on the strut. And install in the reverse order. Will be a good idea to replace the upper strut plate while your in there. Don't forget to remove the retainer bolt when your tire and the car is down. Let me know if any other help is needed. I own the same car just a year younger.