350 S. St. Charles St. Jasper, In. 47546
Ph. 812.482.2932 Fax 812.634.6632
www.ridetech.com
Part # 11446799
93-00 C-3500 AirBar
Components:
2 90002107 Rolling sleeve air spring
1 90000367 Driver side bar frame bracket
1 90000368 Passenger side bar frame bracket
1 90000312 Lower axle bridge assembly
2 90000049 U bolt plate
1 90000194 Panhard bar axle bracket
1 90000192 Panhard bar frame bracket
1 90000185 Driver side upper air spring bracket
1 90000186 Passenger side upper air spring bracket
1 90000190 Carrier bearing spacer
2 90001009 Upper bar – TW 22.625” (C-C 24.5”)
2 90001039 Lower bar – WW 33.25”
1 90000986 Panhard bar – TW 23.125” C-C 25”
16 90001085 Poly bushing half
6 90000198 5/8” inner sleeve – installed into bars
2 90001094 Metric inner sleeve – installed into rod end
2 90001588 Large rod end – installed into upper bar
2 99952001 1” SAE Jam nut – installed onto rod end
1 90001942 Rubber bushing – pressed into panhard bar
1 90001589 Kevlar line Heim end – installed into panhard bar
1 99752004 ¾” SAE Jam nut – installed onto Heim end
2 90001082 Short bump stop
1 99010007 Hardware kit
350 S. St. Charles St. Jasper, In. 47546
Ph. 812.482.2932 Fax 812.634.6632
www.ridetech.com
Hardware Kit: Part # 99010007
2 3/8 x2 ½ USS bolts Carrier Bearing Plate
2 3/8 USS nyloc nuts Carrier Bearing Plate
8 3/8 USS flat washers Carrier Bearing Plate / Upper Air Spring Mounts
8 7/16 x 1 ½ USS bolts Font Upper Bar Mount / Right Upper Air Spring Mount
16 7/16 flat washers Upper Air Spring Bracket
8 7/16 USS nyloc nuts Upper Air Spring Bracket
8 ½ x 1 ½ USS bolts Font Upper Bar Mount
4 ½ x 2” USS bolts Passenger side air spring mount & Panhard bar mount
4 ½ x 1 USS bolts Lower Air Spring Mount
2 ½ x 3 USS bolts Lower Shock Mounts
32 ½ SAE flat washer Shock Spacers/Air Spring Mounting/Upper Front Bar Mount
14 ½ USS nyloc nuts Shocks
4 ¼” x 1” USS bolt Upper shock mounts
7 3/8 x 1 ½ bolts Panhard Bar Differential Bracket
7 3/8 SAE flat washers Panhard Bar Differential Bracket
7 3/8 lock washers Panhard Bar Differential Bracket
7 M8 x 40mm bolts Panhard Bar Differential Bracket
7 M8 SAE flat washers Panhard Bar Differential Bracket
7 M8 lock washers Panhard Bar Differential Bracket
1 5/8 x 1 ¾ SAE bolts Gr.8 Panhard Bar / Axle Side
1 5/8 thin nyloc nut Panhard Bar / Frame Side
1 5/8 x 2 ¾ SAE bolt Gr.8 Panhard Bar / Frame Side
1 5/8 lock washer Panhard Bar / Axle Side
6 5/8 x 4 ½ SAE Gr. 8 Air Bar to Bracket Mounting
8 5/8 x 7 SAE Gr. 8 Axle Bracket
16 5/8 flat washers Gr.8 Axle Bracket
14 5/8 SAE nyloc nut Gr.8 Axle Bracket / Air Bar Ends
Note: oem bolt is used in front lower bar, originally held the leaf front eye.
350 S. St. Charles St. Jasper, In. 47546
Ph. 812.482.2932 Fax 812.634.6632
www.ridetech.com
GM 1 Ton C3500 AirBar Installation
1. Raise and support truck at a comfortable working height. Place jackstands under the frame ahead
of the front leafspring hangar. Support the axle housing with another set of jackstands. Since you will
be removing both leafsprings you will need to support the pinion yoke of the axle housing to prevent it
from dropping when the leafsprings are removed.
2. Remove leafspring assemblies.
3. If your truck does not have a Belltech C notch [or equivilent] already installed, you will need to do
that now. Refer to Belltech’s instructions for proper installation procedure.
3. Install the axle bracket crossmember assembly.
Make sure the legs of the bracket are indexed
properly into the underside of the oem leaf pad.
4. Place the upper 4 link bar axle bracket onto the
oem leafspring axle pad with the open side of the
rode end bracket facing forward. Insert the [8] 5/8 x
7” grade 8 bolts and tighten evenly using the
supplied grade 8 nyloc nuts.
5. Remove the oem leafspring
overload bracket and Install the
upper 4 link bar frame bracket into
its place. You will be able to
locate the bracket using some of
the oem hole and use the bracket
as a template to drill the
remainder of the attachment
holes.
6. Install the 4 link bars into their
respective locations. Note that the
oem leafspring bolt is used to
secure the lower 4 link bar to the
oem leafspring hangar.
7. Install upper airspring brackets onto the framerail using the existing Belltech C notch attachment
bolt locations. [NOTE: If you are using a C notch other than a Belltech unit, you may need to modify
the upper airspring bracket for proper placement. What we are trying to accomplish is to have the
upper airspring bracket directly above the lower mount at a vertical distance of approx. 10.5” at
highway ride height. This places the top of the airspring level with the bottom of the framerail]
Note that the panhard bar frame bracket is attached to the passenger side framerail using the
airspring bracket fasteners.
Drivers side upper airspring mount. This
mount is used in conjunction with the
Belltech C notch.
Passenger side inner framerail showing
panhard bar frame bracket installation.
Also note the notch in the airspring
bracket to fit around the Belltech C
notch.
8. Install panhard bar bracket on rearend housing. BE SURE TO USE THE FASTENERS SUPPLIED
WITH OUR SYSTEM!! The oem fasteners will be too short!
Panhard bar axle bracket. Be sure to
use the fasteners supplied with our
system.
9. Install panhard bar and raise rearend up to ride height. With the axle at ride height, check to make
sure the axle is centered with the frame. The measurement from drum to frame [or some other fixed
points] on each side should be EQUAL! Adjust panhard bar as needed. NOTE: THIS PROCESS
MUST BE DONE AT HIGHWAY RIDE HEIGHT!!
10. Install airsprings into mounts. Be sure to check for airspring clearance at all suspension heights.
REMEMBER: THE AIRSPRING MUST NOT RUB ON ANYTHING AT ANYTIME!!!
11. Install shocks into oem
mounts.
12. Install the spacer block under the
carrier bearing to correct the driveshaft
angles.
13. The installation is now basically complete. Check for axle clearance to the bed and to the
bumpstops. Pay particular attention to the brakeline junction block on top of the axle housing.
You can now run the airlines and continue with the compressor kit installation. Inflate to approx. 25psi
to begin tuning the air ride system. You will probably find 20 to 25psi appropriate for an unloaded
truck. Try to maintain at least 3” of clearance between the axle and bumpstop to maintain a civilized
ride quality. When you load the vehicle, increase the air pressure as needed to support the extra
weight and to maintain this clearance.
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