“This site contains affiliate links for which OEMDTC may be compensated” |
NHTSA ID Number: 10127185
Manufacturer Communication Number: PIT5139C
Summary
This Preliminary Information communication provides information to the technician about vehicles that the rear end has a sway feeling in the rear while switching lanes at highway speeds. Technician should follow all published Service Information diagnostics for the concern. Also inspect the rear suspension components for signs of damage or looseness and inspect the rear toe adjustment bar bushings with the suspension loaded.
31 Affected Products
Vehicles
SEOCONTENT-START
#PIT5139C: Diagnosing Suspension And Rear End Sway – (Sep 8, 2015)
Subject: | Diagnosing Suspension And Rear End Sway |
Models: | 2008-2016 Buick![]() |
2009-2016 Chevrolet Traverse | |
2007-2016 GMC Acadia | |
2007-2010 Saturn![]() |
This PI was superseded to update model years. Please discard PIT5139B.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern
Some owners may comment while switching lanes at highway speeds there is a slight rear end sway feel. They could say it feels like driving in a cross-wind.
Recommendation/Instructions
Follow Service Information document for Symptoms – Suspension General Diagnosis.
Follow Service Information document for Body Leans or Sways in Corners.
Inspect the rear suspension components for signs of damage or looseness.
Inspect the rear toe adjustment bar bushings with the suspension loaded (see picture below).
Use a pry bar and apply forward and rearward pressure to the bushings at the spindle end. Also test at the frame end.

Warranty Information
The correction for this concern may be one of several repairs described above. For vehicles repaired under warranty, please use the appropriate warranty labor operation based on the actual cause and repair.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
SEOCONTENT-END
Bulletin No.: PIT5139C
Date: Sep-2015
To View or Download this Document Click Here
Bulletin No.: PIT5139C
Date: September, 2015
To View or Download this Document Click Here
Bulletin No.: PIT5139B
Date: Feb-2014
To View or Download this Document Click Here
Bulletin No.: PIT5139A
Date: Feb-2013
To View or Download this Document Click Here
“This site contains affiliate links for which OEMDTC may be compensated” |
- Authentic Made In USA RoadActive Suspension HD rear leaf spring upgrade by (RAS)RoadActive Suspension. Only listings with the RAS mark are Made In USA with premium rigorously tested and proven for durability since 1998. Be careful of untested foreign import version not associated with RAS.
- This Standard Duty(SD) kit adds 30-40% in strength to rear suspension and reduce squat by 1-2''.
- Maximize everyday performance by reducing sway, body roll, greatly improved handling and stability
- Maintain or improve loaded and unloaded ride quality without readjustments
- Reduce axle wrap & wheel hop issues
- Fitment:This Suspension System Upgrade fits the front suspension for Chevy Silverado 1500 & GMC Sierra 1500 pickup truck,for 1999-2021 GM 1500 2500 3500 Van/Truck/Suv Models;Direct Replacement for factory Bump Stops
- This kit is rated at about 14,000 lbs capacity;Part Number:GMFK15A,Front Suspension Kit for the Silverado and Sierra
- Our Part upgrades are designed to keep your vehicle level at all times. This will increase traction on the front tires, improve overall steering and keep your headlights pointing down on the road where they belong. If extra weight makes your vehicle top-heavy, you’re going to experience body roll and sway. There’s nothing more challenging than trying to keep your vehicle moving on a straight path when the load is unstable
- Our Suspension Helper Enhancement System upgrades offer you more stability and peace of mind by eliminating suspension sag and reducing body roll & sway. Too much weight can cause your vehicle to bottom out if you’re driving over roads that are bumpy and rough. All this road shock will compromise an otherwise comfortable ride.Improve your ride quality by installing , upgrades, guaranteed to provide a softer, smoother ride… empty or loaded
- Features:Rated for 8600lb ;Improve Handling;Cushion Road Shocks;Tow & Haul With Safety & Confidence;Eliminate Vehicle Squatting & Sagging
- Ideal for snow plow applications on gm trucks
- Increases the load carrying ability
- More Than Just Parts: From snow and ice equipment to toolboxes, hydraulics, towing, truck and trailer hardware to our innovative lighting products-it's amazing what Buyers Products can do for your truck
- We Do Things The Right Way: We design products like we're building them for ourselves, because we are; Our teams are staffed with engineers and experts who know how to make a product exceptional
- Durable and Dependable: Founded in 1946, Buyers Products has become a leader in the truck equipment industry though our commitment to customer care, innovation, and value across our range of products
- High quality
- High performance
- Professional products
- Hyper-Flex replacement polyurethane components stand up well to contaminants that often destroy rubber and have been engineered to give longer-lasting performance and not compress permanently
- Perfect Fitment: Our air suspension kit is designed to fit 1973-1987 Chevy/GMC Pick Up trucks C&R 10, 1500 (2WD only), 1969-2002 Dodge Pickup Trucks D&W 100, 150, 250, Ram 1500 (2WD, 4WD), Ram 2500, 3500 (2WD, 4WD), 1969-1996 **250 Under 8500 GVWR(4x2, 4x4), 1963-2010 **250 Over 8500 GVWR(4x2, 4x4), and 1969-2010 **350.
- Heavy-Duty Load Capacity: Our air springs can handle up to 5000 pounds of load carrying, making it perfect for hauling heavy cargo or towing a trailer.
- Easy Installation: Our air helper springs can be installed on most light trucks, RVs, and vans. The Ride-Rite and Sport-Rite Air Helper Springs are installed between the frame of the suspension, providing load support through the use of air pressure.
- Safe and Reliable: We never recommend exceeding the manufacturer's Gross Vehicle Weight Rating (GVWR) for your safety. Our air suspension kit is designed to provide you with a safe and reliable ride.
- Complete Kit: Our kit includes the item model number: W21-760-2071, mounting hardware, and a 1" rear suspension lift kit, making it a complete package for your convenience.
- FIT:For Most Trucks / SUVs With Front Torsion Key / Torsion Bar Suspension.(For Dodge Ford
Chevrolet Chevy GMC GM HD)
- FUNCTION:Remove and install torsion bars and keys safely and easily.
- ADVANTAGES:Squared design to reduce chances of rocking or slipping,shop quality tool, designed to be used over and over again.
- NOTE:For Ford
Ranger/Explorer models, may require the cross member to be notched to use this tool!
- SUPPORT:At PTNHZ, if you have any question about our product, please contact us right away, we can handle any problems.
- Does not require any permanent modifications to factory parts
- Will align back to factory specifications without the need to purchase additional items
- CNC Machined from high-quality aircraft grade aluminum
- Can be installed without the need of a spring compressor and will allow for you to maintain your factory rims
- Includes two aluminum strut extensions and two aluminum lower strut mount spacers along with all necessary hardware
- Durability is superior for cars, trucks and SUVs; road salt, oil, and a host of other common under car contaminants will eventually destroy the rubber bushings on your vehicles, not to mention the weight and torque forces that typically compress rubber
- Hyper-Flex replacement polyurethane components stand up well to contaminants that often destroy rubber and have been engineered to give longer-lasting performance and not compress permanently
- Hyper-Flex is offered in a variety of durometers (firmness or softness), depending on product application; performance tested and race proven; used for all of Energy Suspension products that require a higher level of performance and durability
- If you are modifying, building a new vehicle for scratch or restoring an old one, Energy Suspension's Hyper-Flex performance polyurethane should be the 'ground zero' focus of your present and next vehicle plans
- Over two decades of in-house experience in innovating, engineering and formulating wide selection of polyurethane components for many different industries, Energy Suspension has qualified as premier manufacturer of the high quality polyurethane products
- Premium Material:The torsion bar tool is built with heavy-duty forged steel and larger 7/8” diameter anvil casting threads, which makes quick and easy work of your suspension job.
- Function: This torsion bar unloading tool is used to relieve tension from the torsion bar arm and key, allowing the user to safely to remove the torsion bar.
- Design: C-Frame is ultra thick and sturdy, the counter hex at base of C-Frame helps to prevent twisting of the tool while compressing torsion bar.
- Easy to use: The torsion bar tool allows you to safely load and unload 5-lug, 6-lug, and 8-lug torsion bar suspensions for key replacements.
- Application: Torsion Bar Removal fits for heavy duty chassis and larger torsion bar trucks. For Cadillac
Escalade Torsion Bar Removal Tool, for Chevrolet Silverad /Suburban/Tahoe/Avalanche Torsion Bar Removal Tool, for GMC Sierra/Yukon/Yukon XL1500 Torsion Bar Removal Tool, for Hummer
H2 2003-2009 Torsion Bar Removal Tool.
Last update on 2025-05-08 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.