# Service bulletin PIP3720D A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned. - Type: Service bulletin - NHTSA id: 10112600 - Published by NHTSA: 2017\-08\-15 - Manufacturer's number: PIP3720D - Manufacturer's date: 2012\-11\-26 - NHTSA component: POWER TRAIN:AXLE ASSEMBLY ## NHTSA's summary This Preliminary Information communication provides information to the technician with the axel setup information from American Axle Manufacturing. Technician should be advised that the maximum pinion shim to be used or stacked behind the pinion is 0.050?, and the minimum pinion shim is 0.020? for an 8.6 axle. The range for available pinion depth shims for the 10.5? axle is 0.006? to 0.024?. When setting the backlash it should be set between 0.003? to 0.005? on a new ring and pinion for any American Axle Manufacturing application. The ring and pinion can be reused or adjusted if the mileage is less than 500 miles, if not used for towing. Technician should be advised that a ?roller coaster? or ?hourglass? pattern on the bearings may be normal up to 10,000 miles and possibly longer. With a mis\-machined housing you may get a heel pattern on both sides of the gear teeth at build up can generally be corrected with backlash adjustments. When setting up an 8.6? axle with a 5 cut gear set is to use a 0.035? pinion shim and set backlash to 0.004?. When using the newer 2 cut gear set also use a 0.035? pinion shim and still set backlash to 0.004?. To set the gear pattern use backlash to adjust the pattern heel to toe. Use the pinion shim to adjust the height of the pattern. The proper drive pinion bearing pre\-load is from 15 \- 30 inch pounds with new bearings. The total torque to turn after the differential case is installed should increase 5 \- 10 inch pounds at the pinion. A new pinion nut must be used whenever the old one is removed. The axle shaft end play specification is 0.012? per side and the radial specification is 0.002? \- 0.003?. Technician should be advised that synthetic lube can be used in all new American Axle Manufacturing axle assemblies. The new pinion seal for the 8.6? axle assembly is a two piece design. ## The document - [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2012/MC-10112600-9999.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2012/MC-10112600-0001.pdf) The document is the manufacturer's. This site does not hold it. ## Components Transmission and driveline, Axle ## Vehicles listed - 2008 to 2013 BUICK ENCLAVE - 2002 to 2007 BUICK RENDEZVOUS - 1999 to 2000 CADILLAC ESCALADE - 2002 to 2013 CADILLAC ESCALADE - 2003 to 2013 CADILLAC ESCALADE ESV - 2002 to 2013 CADILLAC ESCALADE EXT - 2005 to 2013 CADILLAC SRX - 2002 to 2013 CHEVROLET AVALANCHE - 1999 to 2005 CHEVROLET BLAZER - 2004 to 2012 CHEVROLET COLORADO - 2005 to 2013 CHEVROLET EQUINOX - 2006 to 2011 CHEVROLET HHR - 1999 to 2000 CHEVROLET PICKUP - 1999 to 2004 CHEVROLET S10 - 1999 to 2013 CHEVROLET SILVERADO 1500 - 1999 to 2000 CHEVROLET SILVERADO 2500 - 2002 to 2013 CHEVROLET SILVERADO 2500 - 1999 to 2013 CHEVROLET SILVERADO 3500 - 2003 to 2006 CHEVROLET SSR - 1999 to 2013 CHEVROLET SUBURBAN - 1999 to 2013 CHEVROLET TAHOE - 1999 to 2004 CHEVROLET TRACKER - 2002 to 2009 CHEVROLET TRAILBLAZER - 2009 to 2013 CHEVROLET TRAVERSE - 2007 to 2013 GMC ACADIA - 2004 to 2012 GMC CANYON - 1999 to 2001 GMC ENVOY - 2002 to 2009 GMC ENVOY - 2006 GMC ENVOY XL - 2004 to 2005 GMC ENVOY XUV - 1999 to 2004 GMC JIMMY - 2005 GMC JIMMY CLASSIC - 1999 to 2013 GMC SIERRA 1500 - 1999 to 2013 GMC SIERRA 2500 - 1999 to 2013 GMC SIERRA 3500 - 2004 to 2013 GMC SIERRA DENALI - 1999 to 2004 GMC SONOMA - 1999 to 2000 GMC SUBURBAN - 2001 GMC SUBURBAN - 2010 to 2013 GMC TERRAIN - 1999 to 2013 GMC YUKON - 2000 to 2013 GMC YUKON DENALI - 2004 to 2013 GMC YUKON DENALI XL - 2000 to 2011 GMC YUKON XL - 2012 to 2013 GMC YUKON XL - 2003 to 2010 HUMMER H2 - 2006 to 2010 HUMMER H3 - 2004 ISUZU ASCENDER - 1999 to 2004 ISUZU RODEO - 1999 to 2002 ISUZU TROOPER - 1999 to 2004 OLDSMOBILE BRAVADA - 2002 to 2005 PONTIAC AZTEK - 2006 to 2009 PONTIAC TORRENT - 2005 to 2007 SAAB 9\-7X - 2009 SAAB 9\-7X - 2002 to 2010 SATURN VUE ## Recalls for the same vehicles and component - [07V589000](/recalls/nhtsa/07V589000.md), 2007-12-20: POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT:SEAL ## Other bulletins for the same vehicles and component - [PI0703B](/bulletins/10253612.md), 2024-04-29, Service bulletin: POWER TRAIN:AXLE ASSEMBLY. Service Rear Axle Message Displayed on Driver Information Center. - [PIP5168F](/bulletins/10129067.md), 2018-02-21, Service bulletin: POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT; BACK OVER PREVENTION; FUEL SYSTEM, GASOLINE. This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a no crank concern. Technician will need to check the valve train for movement when the engine is cranked. If the valve train is not moving while the crankshaft is moving the front cover will need to be removed to inspect for a sheared cam sprocket locator pin. If the cam sprocket locator pin has sheared, replace the engine assembly. If the valve train is rotating during inspection, disconnect the Camshaft Position sensor and check if the engine will start. If the engine starts front cover will need to be removed to inspect for a sheared cam sprocket locator pin. If the cam sprocket locator pin has sheared, replace the engine assembly. If the engine does not start with the Camshaft Position sensor disconnected the follow published \“Engine Cranks But Does Not Run\” diagnosis in Service Information. Also perform an Engine Compression Test and Cylinder Leakage Test in Service Information documents all results. If the Service Information procedures above isolate an engine mechanical concern then removed to inspect for a sheared cam sprocket locator pin. If the cam sprocket locator pin has sheared, replace the engine assembly. - [06\-00\-89\-026L](/bulletins/10113502.md), 2017-08-15, Service bulletin: SERVICE BRAKES; EQUIPMENT:ELECTRICAL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; EQUIPMENT:APPLIANCE:AIR CONDITIONER; POWER TRAIN:AXLE ASSEMBLY; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. This warranty administration bulletin provide policy information on a revised customer concern not duplicated/verified labor operation numbers and how to submit CCND. - [PI0561A](/bulletins/10113481.md), 2017-08-15, Service bulletin: POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT:SEAL. This preliminary information bulletin provides a procedure for replacing the right and left axle shaft seals to eliminate a squeak or chirp noise due to the lack of lubrication. - [PIP4365D](/bulletins/10113037.md), 2017-08-15, Service bulletin: POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT. This Preliminary Information communication provides information to the technician about vehicles that have the transfer case is inoperative, difficult to shift or has no torque to the front prop shaft after 4wd is engaged. Technician will need to manually shift the transfer case. If the actuator shaft is bound up or all ranges cannot be obtained, then the transfer case should be removed for internal inspection. If the snap ring is found out of the groove, replacement of the actuator shaft and snap ring will be required. - [PIP5102](/bulletins/10112937.md), 2017-08-15, Service bulletin: POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT. This Preliminary Information communication provides information to the technician about vehicles that have Diagnostic Trouble Code P0016 stored. Technician will need to inspect the reluctor on the crankshaft. If the reluctor has moved replace the crankshaft. - [PIP5087](/bulletins/10112740.md), 2017-08-15, Service bulletin: POWER TRAIN:AXLE ASSEMBLY. This Preliminary Information communication provides information to the technician about vehicles that may have a service 4WD message displayed in the Driver Information Center. Technician may find Diagnostic Trouble Code C0379. Technician will need to inspect the front axle actuator connector for signs of moisture intrusion. If there is corrosion on the terminals at either location replace the actuator and harness. - [PIP5015](/bulletins/10044243.md), 2012-05-24, Service bulletin: POWER TRAIN:AXLE ASSEMBLY. GM: CLICK TICK WHIRL NOISE FROM REAR AXLE. THE NOISE MAY BE PRESENT ON ACCELERATION, DECELERATION, OR WHEN THERE IS A TORQUE REVERSAL IN THE DRIVE\-LINE \(ACCELERATION TO DECELERATION\). ALSO INCLUDED ESCALADE HYBRID MODEL YEARS 2008/2010/2011/2012. MODEL TAHOE HYBRID MODEL YEARS 2010\-2012. MODEL SILVERADO HYBRID MODEL YEARS 2010\-2012. MODEL YUKON HYBRID MODEL YEARS 2010\-2012. MODEL SIERRA HYBRID MODEL YEAR 2010\-2012. \*JS - [PIE\-0111A](/bulletins/10037931.md), 2011-06-08, Service bulletin: POWER TRAIN:AXLE ASSEMBLY. GM: THE SERVICE REAR AXLE MESSAGE IS DISPLAYED. 2010\-2011 CADILLAC SRX. \*RM - [09\-04\-17\-002E](/bulletins/10037552.md), 2011-05-25, Service bulletin: POWER TRAIN:AXLE ASSEMBLY. GM: THERE MAY BE A BUMP NOISE OR CLUNK FEEL WHEN STOPPING OR LAUNCHING. THIS MAY BE CAUSED BY A SLIP IN THE TRANSMISSION. \*RM JSON: [/v1/bulletins/10112600](/v1/bulletins/10112600) [Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20PIP3720D&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10112600&vehicle=Service%20bulletin%20PIP3720D)