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Instruction # 7055 

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

Pitman/Idler Arm Support Kit  

SKU# PISK3008 

**UTILITY PATENT US 7,475,891 B2**

Introduction 

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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.

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Installation requires a qualified mechanic.

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

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

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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

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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 

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8257 Pitman arm bracket for traditional GM centerlink.

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8272 Pitman arm bracket for new GM centerlink with isolator

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8258 Idler arm bracket

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(2) 16mm  lock washer

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(2) 7/8”-5/8”-18 rod ends

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(4) 5/8” jam nuts

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

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Thread locker

Summary of Contents for PISK3008

Page 1: ...are 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...

Page 2: ...side 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 fro...

Page 3: ...nch 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 show...

Page 4: ...prop the steering box up away from the cross member 8 there are 2 pitman arm support brackets included in this kit as of June 20th 2011 On some of the 2011 and newer GM trucks there is a new design c...

Page 5: ...ity To do this remove the nut holding the outer tie rod end to the spindle then while prying the tie rod away from the spindle hit the spindle with a hammer in the position as shown in figure 9 Figure...

Page 6: ...a shank nut on to each of the drag link studs passing through the rod ends and locking against the lock washer and drag link as shown in Figure 10 future torque on the shank nuts is 70 ft lb Figure 1...

Page 7: ...on the idler arm pivot to 70 ft lb and the pitman arm to 120 ft lb these 2 will only permit an open end wrench due to space constraints so get them really tight by hand with the wrenches 16 If using a...

Page 8: ...and or application of parts when deemed necessary by Cognito Motorsports without written notice and in the sole and absolute discretion of Cognito Motorsports Warranty Claims All warranty claims must...

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