Car Fix DIY Videos

Your GMC Sierra 1500 or Chevy Silverado 1500’s rear shock absorbers dampen your truck’s suspension movement for a smoother ride. Replacing worn shock absorbers on your 1999-2007 GMC Sierra is a simple repair that can improve your truck’s balance, handling, tire wear, braking time, and the overall ride. If your GMC Sierra 1500’s shock absorbers are failing, you may experience excessive rocking, poor handling, oil leaks near the lower shock tube or shaft seal, knocking noises, damaged rubber bushings, or longer braking time. Exposure to high temperatures and other weather conditions can contribute to failing shock absorbers, and they should be replaced as soon as you suspect a problem to prevent tire and suspension damage to your truck. It’s recommended that you inspect or replace your shocks every 50,000 miles, and both shock absorbers on your GMC Sierra 1500 should be replaced at the same time since they have experienced the same amount of use. Our detailed step-by-step instructions will help you perform a rear shock absorber replacement on your 1999-2007 GMC Sierra 1500 or Chevy Silverado 1500.

Supplies Needed for This Job:
1. Safety Glasses: https://urlzs.com/hbwc
2. Gloves: https://bit.ly/2GvfwAm
3. Box Wrench: http://bit.ly/2XK1Mrt
4. Ratchet: http://bit.ly/2IEAOOi
5. 21mm Socket: http://bit.ly/2Hx0HNs
6. Breaker Bar: http://bit.ly/2UWfies
7. Torque Wrench: http://bit.ly/2UToD1D
8. Penetrating Oil: http://bit.ly/2H6qr42
9. Jack: http://bit.ly/2ZxQiJl
10. Jack Stands: http://bit.ly/2L1YEp9
11. Wheel Chocks: http://bit.ly/2ZvIW98

0:00 Welcome Back
0:36 Access the Shocks
0:47 Remove the Old Shocks
1:21 Prime the Shock
1:46 Install the New Shock
1:55 Lower the Vehicle

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Today, I’ll be changing the shocks on this 2003 Silverado 1500, and the procedure will be similar on a lot of early Silverados from about 99 to 07, but be sure to know the specifics for your truck before getting started. If you’re not completely comfortable doing this yourself, we’d be happy to recommend a professional technician in your area.

Once you’ve got your supplies together, here’s what you’ll do:

Park on a level surface.
Depending on the ground clearance, you may or may not need to lift and support the rear of the truck.
Spraying penetrating oil on the bolts at the top and bottom of the shock absorber can make removing them easier.
Use a box wrench and breaker bar with a 21mm socket to loosen the bottom nut and bolt securing the shock… and remove it.
Then remove the upper shock absorber nut and bolt.
At this point, you should be able to remove the shock.
Set it next to your new shock to make sure you have the right replacement.
There may be a slight difference in length due to different types of internal rebound bumpers or support springs, but it won’t affect performance.
Before installation, it’s a good idea to prime the shock absorber by fully compressing and letting it extend on its own 4-5 times.
This will ensure that the gas and oil are in the proper position inside the shock, and can help prevent unwanted noise when you start driving with the new shocks in place.
Be sure to have the shock upright with the dust boot or metal shield at the top when priming and when installing.

**View full video for complete instructions**

These step-by-step instructions and video detail a rear shock absorber replacement on your 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, and 2007 GMC Sierra 1500 and Chevy Silverado 1500. Replacing worn shock absorbers helps you maintain a safe, working suspension system, and can help you avoid an accident. If you notice oil leaks near the shock tube or shaft seal, knocking noises, excessive rocking, longer braking time, or decreased handling, it is important to replace the rear shock absorbers as soon as possible.