350 S. St. Charles St. Jasper, In. 47546
Ph. 812.482.2932 Fax 812.634.6632
www.ridetech.com
Part # 11376799
88-98 C1500 AirBar
Components:
2 90009100 Air spring
2 90001617 Shock stud
2 90000119 Mounting plate – air spring to lower arm
2 90001082 Short bump stop
1 90000190 Carrier bearing spacer
1 90000494 Panhard bar axle mount (with stud pressed in)
1 90000487 P/H bar stud (pressed into 90000494)
2 90000967 Upper bars – TW 19.75” (c-c 21.50”)
2 90001036 Lower bar – WW 32.25”
1 90000964 Panhard bar – TW 19.25” (c-c 21.00”)
3 90001584 Rod end
4 90001085 Poly bushing half
2 90001094 Inner sleeve for lower bar
8 90001942 Rubber bushings pressed into bar ends
1 90000485 Front upper bar frame bracket
1 90000486 Front upper bar frame bracket
1 90000488 C-Notch – Driver side
1 90000489 C-Notch – Passenger side
1 90000491 Upper bridge assembly
1 90000492 Lower bridge assembly
2 90000493 Upper axle bracket
1 90000490 Brake line bracket
1 C notch template
1 99010013 Hardware kit (see following page)
350 S. St. Charles St. Jasper, In. 47546
Ph. 812.482.2932 Fax 812.634.6632
www.ridetech.com
Hardware Kit: Part # 99010013
44 ½ x 1 ½ USS bolt C-notch, Upper bridge, & upper bar mount
44 ½ USS Nyloc Nuts C-notch, Upper bridge, & upper bar mount
88 ½ SAE Flat washers C-notch, Upper bridge, & upper bar mount
8 5/8 x 6 ½ SAE Gr.8 Bolts Lower Bridge
8 5/8 SAE Gr. 8 Nyloc Nuts Lower Bridge
16 5/8 SAE Gr. 8 Flat washers Lower Bridge
7 5/8 x 2 ¾ SAE Gr. 8 Bolts Bar to bracket
7 5/8 SAE Gr.8 Thin Nyloc nuts Bar to bracket
2 3/8 x 2 ½ USS Bolts Carrier bearing bracket
2 3/8 USS Nyloc nuts Carrier bearing bracket
8 3/8 SAE Flat washers Carrier bearing bracket & Air Spring to mounts
2 ½ x 2 ½ USS bolts Lower Shock mount
2 ½ USS nyloc nuts Lower Shock mount
3 5/16 x 2 USS Bolts Panhard bar axle mount
5 5/16 SAE Flat washers Panhard bar axle mount & brake line bracket
3 5/16 Lock washers Panhard bar axle mount
1 5/16 x 1 ¼ USS Bolt Brake Line Bracket
1 5/16 USS nyloc nut Brake Line Bracket
1 ½ x 1 ½ Fender Washer Panhard bar to bracket
1 7/16 USS Nyloc nut Panhard bar to bracket
4 3/8 x 1 USS Bolts Air Spring to mounts
4 3/8 Lock washers Air Spring to mounts
7. SUPPORT THE REAR PORTION OF
Installation Instructions
1. Raise vehicle to a safe and comfortable working height supported by jack stand. Let the
suspension hang freely.
2. Remove bed mount bolts, gas filler neck, and all electrical wires. Safely lift bed from frame.
3. Remove the leaf springs and shocks while supporting axle.
4. The exhaust will need to be removed from the muffler rearward. The exhaust can either be
rerouted when installation is complete or a turndown may be installed.
5. Hold the C-notch template up to the
frame. It will index off two small holes in
the frame, one in front of the notch and
one behind. Scribe the cutout in the
frame.
6. Drill one 1/2” hole in each of the top
corners of the notch as shown. This will
give a round corner instead of a sharp
corner to reduce stress points and
eliminate the possibility of a fracture.
THE FRAME BEFORE CUTTING!
8. Cut the notch out with a sawzall or
plasma cutter. Watch for the fuel tank
and any wires or hoses.
9. Slide notch onto frame and align with
index holes. Drill holes in frame and
fasten with 1/2” x 1-1/2” bolts nylocs and
washers.
10. Place bump stop through the hole in
the center of the notch and fasten with
supplied nyloc and washer.
11. Align upper bar frame bracket with
the rivets in the leaf spring hanger. Drill
one hole and fasten with 1/2” x 1-1/2”
bolts, washers, and nylocs. Then drill
remaining holes and tighten all bolts.
12. Watch for brake lines, fuel lines,
and wiring harness.
13. Clamp the lower bridge to the axle
using the upper frame brackets and 5/8”
x 6 1/2” bolts supplied. It will be clocked
with the leaf spring alignment pin hole
and the Allen head bolt in the upper axle
bracket.
14. Attach the lower bar (the longer one)
to the bridge and frame bracket. Use
5/8” x 2 3/4” bolt supplied for upper bar
and factory bolt for lower bar.
15. The upper bar will attach to the
upper axle bracket and to the frame
bracket. It will use 5/8” x 2 3/4” bolts
on both ends.
16. Fasten the shock stud to the notch
and then slide shock onto stud.
17. The shock will attach to the lower
bridge using a 1/2” x 2 1/2” bolt and
nyloc.
18. Bolt in the upper bridge between
the frame rails attaching to the C
notch. Use 1/2” x 1 1/2” bolts supplied.
19. Apply a tread sealant to the air
fitting and tighten to snug in air spring.
Place lower plate onto lower bridge
then air spring and secure with 3/8” x
1” bolt. The air spring will attach to the
upper bridge also using a 3/8” x 1” bolt.
20. The brake flex line will attach to
the hard line with the tab on the upper
bridge
21. Remove 3 bolts from the axle
cover and attach panhard bar mount
as shown. Use the 5/16” x 2” bolts that
are supplied.
22. Attach the brake line bracket to the
axle cover as shown. Bolt brake lines
to bracket.
23. Slide panhard bar on stud and
secure with nut and washer. The other
end of the panhard bar will attach to
the upper bridge.
24. Install carrier bearing spacer
between carrier bearing housing and
cross member. Secure with 3/8” x 2
1/2” bolts.
25. The brace on the bottom side of
the bed will need to be removed for C
notch and axle clearance. This is best
done with a cutoff wheel. Double
check clearance with axle and notch
when fully deflated.
26. Set the bed back on the frame and
reassemble. After tightening bolts
check axle, C-notch, and wheel
clearance. Note that the axle will shift
slightly from side to side through
suspension travel. Also check brake
lines, vent tube, and airlines for proper
slack.
27. Make sure nothing can touch
the air spring at any time through
full suspension travel.
28. This air spring should be
approximately 10.5” tall at ride height.
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