QA1 2853 Adjustable Lower Trailing Arms Instruction Manual
- June 10, 2024
- QA1
Table of Contents
Adjustable Lower Trailing Arms
Instruction Manual
2853 Adjustable Lower Trailing Arms
Technical Support Line: 952-985-5675
Email: sales@QA1.net
INSTALLATION INSTRUCTIONS
QA1 P/N 52853
78-‘88 GM G-Body Rear Sway Bar with QA1 Adjustable Lower Trailing Arms
TOOLS AND SUPPLIES REQUIRED
- Floor Jack
- Jack Stands
- Ratchet & Socket Set
- Torque Wrench
PRE-INSTALLATION NOTES
Some exhaust systems will need to be re-routed for sway bar clearance. Be sure
to check exhaust to sway bar clearance at ride height.
REMOVAL-
- Raise and support the vehicle with jack stands on a level surface.
- Remove the factory sway bar mounting hardware and remove the sway bar (if equipped).
INSTALLATION
-
Loosely mount the sway bar to the axle using the included u-bolt kit and sway bar bushing clamp. A small amount of the included grease on the inner bushings where the bar will contact is recommended. The legs of the bar should be pointing towards the front of the vehicle and the rear of the bar biased downward. (Figure 1-3) Leave the u-bolt connection loose until the bar is fully installed so the angle of the mount can be adjusted.
BALLOON #| ITEM #| DESCRIPTION| QTY.
---|---|---|---
1| SG8-67| HIGH MISALIGNMENT SPACER, SS| 4
2| XMR8| ROD END (X) ENDURA ALLOY HT| 2
3| JNR8S| JAM NUT, STEEL 1/2-20 RH| 2
4| XFR8| ROD END (X) ENDURA ALLOY HT| 2
5| SG8-64| HIGH MISALIGNMENT SPACER, .5″ OD| 2
6| 9029-309| HIGH MISALIGNMENT STUD| 2
7| 9071-109| TUBE, TEFLON LUBE (POLY BUSHING LUBE)| 1
8| 9012-204| U-BOLT, 7/16-20 X 3.125″ X 4.5″| 2
9| 9037-628| BRACKET, AXLE SADDLE MOUNT, 3 INCH| 2
10| 9032-171| BUSHING, SWAY BAR FRAME MOUNT 1-1/4″| 1
11| 9037-1015| WELDMENT, SWAY BAR MOUNT| 2
12| 7039-319| HARDWARE KIT, REAR SWAY BAR, 52851| 1 -
Thread one jam nut onto the male rod end before threading intothe female rod end
-
Insert the large diameter end of the high misalignment stud into the sway bar end with the sway bar on the outboard side of the assembly, followed by one 1/2″ washer and 1/2″ nyloc nut. (Figure 4, lower joint)
-
nsert one high misalignment spacer onto the stud followed by one 3/8” nyloc nut. Torque to 31 lb. ft.
-
Insert one SG8-67 high missal opposite rod end before attaching the rod end into the bracket.
-
Attach the rod end to the bracket using one 3/8” x 2-3/4” bolt and one 3/8” nylon nut. Torque to 31 lb. ft. NOTE-
The frame brackets will be mounted to the upper trailing arm crossmember. The brackets can be installed facing inboard or outboard depending on the clearances needed, but the rod end must be inboard of the sway bar.(Figure 5) Exhaust routing could interfere with the sway bar mounting and the bracket position should be adjusted as needed.” -
With the sway bar centered to the vehicle, swing the legs of the bar up to the upper trailing arm crossmember. Mark both bracket holes onto the crossmember before drilling them to 3/8”.
-
Install the brackets to the crossmember using 3/8” x 1” bolts, with two washers and one nyloc nut per connection. (Figure 6) Torque to 31 lb. ft.
-
With the vehicle at ride height, rotate the axle u-bolts as needed to allow the end link to be as vertical as possible. When complete, torque the u-bolt
connections to 50 lb. ft. -
Double check all bar clearances at ride height before driving.
DEDICATED
TECHSUPPORT
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to better serve you.
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Technical Support Line: 952-985-5675
Email: sales@QA1.net
READ ALL INSTRUCTIONS CAREFULLY AND THOROUGHLY PRIOR TO STARTING INSTALLATION.
PRODUCTS THAT HAVE BEEN INSTALLED ARE NOT ELIGIBLE FOR RETURN. USE THE PROPER
JACKING LOCATIONS. DEATH OR SERIOUS INJURY CAN RESULT IF INSTRUCTIONS ARE NOT
CORRECTLY FOLLOWED. A GOOD CHASSIS MANUAL, AVAILABLE AT YOUR LOCAL PARTS
STORE, MAY ALSO AID IN YOUR INSTALLATION.
DISCLAIMER / WARRANTY
QA1 WARRANTS THAT THE PRODUCTS WILL BE FREE FROM DEFECTS IN MATERIAL AND
WORKMANSHIP FOR ONE YEAR FROM DATE OF SALE TO THE ORIGINAL PURCHASER. QA1
MAKES NO OTHER WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. QA1 SHALL HAVE NO
OBLIGATION UNDER THE FOREGOING WARRANTY WHERE THE DEFECT IS THE RESULT OF
IMPROPER OR ABNORMAL USE, YOUR NEGLIGENCE, VEHICLE ACCIDENT, IMPROPER OR
INCORRECT INSTALLATION OR
MAINTENANCE, NOR WHEN THE PRODUCT HAS BEEN REPAIRED OR ALTERED IN ANY WAY.
QA1’S LIABILITY IN THE CASE OF DEFECTIVE PRODUCTS SUBJECT TO THE FOREGOING
WARRANTY SHALL BE LIMITED TO THE REPAIR OR REPLACEMENT, AT QA1’S OPTION, OF
THE DEFECTIVE PRODUCTS.
THE USER UNDERSTANDS AND RECOGNIZES THAT RACING PARTS, SPECIALIZED STREET ROD
EQUIPMENT, AND ALL PARTS AND SERVICES SOLD BY QA1 ARE EXPOSED TO MANY AND
VARIED CONDITIONS DUE TO THE MANNER IN WHICH THEY ARE INSTALLED AND USED. QA1
SHALL BEAR NO LIABILITY FOR ANY LOSS, DAMAGE OR INJURY, EITHER TO A PERSON OR
TO PROPERTY, RESULTING FROM THE INSTALLATION, DIRECT OR INDIRECT USE OF ANY
QA1 PRODUCTS OR INABILITY BY THE BUYER TO DETERMINE PROPER USE OR APPLICATION
OF QA1 PRODUCTS. WITH THE EXCEPTION OF THE LIMITED LIABILITY WARRANTY SET
FORTH ABOVE, QA1 SHALL NOT BE LIABLE FOR ANY CLAIMS, DEMANDS, INJURIES,
DAMAGES, ACTIONS, OR CAUSES OF ACTION WHATSOEVER TO BUYER ARISING OUT OF OR
CONNECTED WITH THE USE OF ANY QA1 PRODUCTS. MOTORSPORTS ARE DANGEROUS; AS
SUCH, NO WARRANTY OR REPRESENTATION IS MADE AS TO THE PRODUCT’S ABILITY TO
PROTECT THE USER FROM INJURY OR DEATH. THE USER ASSUMES THAT RISK!
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9919-306
Rev. 03072023