Cognito PISK3008 Instructions Manual

Instruction # 7055

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Cognito Motorsports, Inc., GM 2011-present 8-Lug truck

Pitman/Idler Arm Support Kit

SKU# PISK3008

**UTILITY PATENT US 7,475,891 B2**

Introduction

- This application is for stock and lifted applications that use the factory steering center link in
the factory location. Aftermarket steering stabilizers may interfere with this system.

- Installation requires a qualified mechanic.

- Read instructions carefully and study the pictures (if included) before attempting installation.

- Check the parts and any hardware packages against the parts list to assure that your kit is
complete.

- Tools needed: 46mm end wrench or 18" adjustable wrench, 21mm open end wrench, 24mm
open end wrench, 30mm open end wrench qty. 2 of 15/16” box end wrench, 15mm and
21mm socket, 24mm deep socket, 1” socket or box end wrench

- If using a factory or aftermarket steering stabilizer be sure to cycle the steering before driving
to ensure clearance at the steering stabilizer shock area.

Parts List

- 8257 Pitman arm bracket for traditional GM centerlink.

- 8272 Pitman arm bracket for new GM centerlink with isolator

- 8258 Idler arm bracket

- (2) 16mm lock washer

- (2) 7/8”-5/8”-18 rod ends

- (4) 5/8” jam nuts

- (2) Coarse thread shank nuts 16mmX2.0 (normally gold)

- Thread locker

Instruction # 7055

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Installation Instructions

1. Remove the shroud and skid plate shown in Figure 1 with a 15mm socket to access the pitman

and idler arms and set aside for re-installation later.

Figure 1: shroud and skid plate

Figure 2: shroud and skid plate removed

2. unbolt the sway bar mounting clamps from the frame with 10mm socket and let the sway bar

hang from the end links. see figures 3 and 4

3. Unscrew the factory lock nuts that hold the drag link to the pitman and idler arms, using a 24mm

deep socket, and discard them.

Instruction # 7055

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Figure 3: unbolt sway bar from frame

4. Unscrew the large nut holding the pitman arm to the steering box using a 46mm open end

wrench, or an 18" adjustable wrench. Figure 5

5. unbolt the steering box from the frame by removing the 3 bolts using a 21mm socket as shown in

figure 6

6. use a screw jack to prop the steering box up away from the cross member as shown in figure 7

7. Loosen the nut holding the idler arm to the idler arm pivot with a 30mm end wrench. Then unbolt

the idler pivot from the frame and pry it out of the mounting pocket as shown in figure 8.

Figure 4: sway bar hanging