Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 69 (AUTOMATIC TRANSMISSION SERVICING)REMOVAL & INSTALLATIONOUTPUT SHAFTREMOVAL
1999 GMC Forward Control 5.7 R, Automatic
Output Shaft: Removal
1999 GMC Forward Control 5.7 R, AutomaticSECTION Removal
WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the case extension housing. See CASE EXTENSION HOUSING . Disconnect the left drive axle from the transaxle. See appropriate article in DRIVE AXLES.
- Rotate the differential carrier until the end of the output shaft can be seen and the differential pinion shaft (701) is in a horizontal position. See Fig 1 .
- Place the Snap Ring Tool (J-42562) between the end of the output shaft and the differential pinion shaft. Using a hammer, hit the end of the axle removal tool in order to compress the output shaft compression ring (512) and push the output shaft through the differential side gear.
- Remove the differential carrier (700). See Fig 2 . Using snap ring pliers remove the compression ring (512) from the output shaft.
- Remove the output shaft through the left wheel opening. See Fig 3 . Inspect the output shaft (510) for the following: stripped splines, damaged retainer ring groove or a damaged bushing journal. See Fig 4 .
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.