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Art 804-1

SOLUTION:PROBLEM:

studfracture

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B U L L E T I N : 2 1 4 0 0 1

Moog® Problem Solver® Heavy Duty Pitman/Idler Arms

Pitman or idler arm stud breaks on vehicles with modified tires and/or suspension

When the suspension is lifted, and/or larger aftermarket tires are used on the affected vehicles, the steering geometry changes and puts excessive stress on the Pitman and/or idler arm. This stress causes excessive stud deflection (movement) and may cause stud fracture, which then results in steering loss.

MOOG® Problem Solver® Heavy Duty Pitman/Idler Arms, noted by an “HD” suffix, feature key enhancements:

• Innovative double-taper socket design provides better resistance to stud deflection

• Full induction-hardened stud for maximum strength

• MOOG gusher bearing technology for superior durability

• Unique Belleville washer and telescopic spacer design provides a secure assembly

• Greaseable for longer life and smoother operation

• Enhanced E-coating for rust resistance

PItMAn/IDler ArM FAIlure on gM

Full SIze truckS

FORGED HOusinG

GREAsE FiTTinG

METAL GusHER BEARinG TECHnOLOGY

FuLL inDuCTiOn-HARDEnED

sTuD

BELLEviLLE wAsHER / TELEsCOPiC sPACER

innOvATivE sOCKET DEsiGn

Description Years Make/Model P/N

Idler Arm

1999-2007 Chevrolet Silverado 1500, GMC Sierra 1500

K6534HD2003-2011 Chevrolet Express 2500, 3500, GMC Savana 2500, 3500

2009-2011 Chevrolet Express 4500, GMC Savana 4500

Idler Arm

2000-2011 Chevrolet Suburban 2500, GMC Yukon XL 2500

K6535HD2001-2007 Chevrolet Silverado 1500 HD, 3500,

GMC Sierra 1500 HD, 3500 2001-2010 Chevrolet Silverado 2500 HD, GMC Sierra 2500 HD 2003-2009 Hummer H2 2007-2010 Chevrolet Silverado 3500 HD, GMC Sierra 3500 HD

Pitman Arm

1999-2007 Chevrolet Silverado 1500, GMC Sierra 1500

K6536HD

2000-2011 Chevrolet Suburban 2500 2001-2007 Chevrolet Silverado 2500 HD2001-2010 GMC Sierra 2500 HD 2003-2007 Hummer H2 2003-2008 Chevrolet Express 2500, 3500, GMC Savana 2500, 3500

Pitman Arm

2001-2007 Chevrolet Silverado 1500, 1500 HD, 3500, GMC Sierra 1500 HD, 3500

K6654HD

2001-2010 Chevrolet Silverado 2500 HD, GMC Sierra 2500 HD

2001-2011 Chevrolet Suburban 2500, GMC Yukon XL 2500

2003-2009 Hummer H2

2003-2011 Chevrolet Express 2500, 3500, GMC Savana 2500, 3500

2007-2010 Chevrolet Silverado 3500 HD, GMC Sierra 3500 HD

2009-2011 Chevrolet Express 4500, GMC Savana 4500

BROKEn sTuD

K6535HD iDLER ARM

PiTMAn ARM

iDLER ARM

wORn

EXCEssivE DEFLECTiOn

(See www.fMe-cat.com for additional applications.)

Before installing new components, inspect centerlink tapered holes to be sure they are not worn (fretted) or out-of-round. Replace centerlink as required.