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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSISUZU2004ASCENDER 2WD L6-4.2LREPAIR AND DIAGNOSISBODY AND FRAMETESTING AND INSPECTIONVIBRATION DIAGNOSIS AND CORRECTIONREPAIR INSTRUCTIONSDRIVELINE WORKING ANGLES ADJUSTMENT
2004 Isuzu Ascender 2WD L6-4.2L
Driveline Working Angles Adjustment
2004 Isuzu Ascender 2WD L6-4.2LSECTION Driveline Working Angles Adjustment
Driveline Working Angles Adjustment
Rear axle wind-up may cause launch shudder even when all of the working angles are within specifications. Rear axle wind-up occurs when heavy torque during acceleration causes the pinion nose to point upward. In order to compensate for axle wind-up, the transmission output shaft can be raised slightly. Perform a road test after each shim to determine the affects on the vibration concern. Add shims until the road test indicates that the shudder is eliminated.
Transmission Shims
If a transmission requires shims, order the shims through the parts distribution system.
Installing most shims will change the transmission angle approximately 1/2 degree.
When shimming transmissions, use a shim made from steel stock at the necessary thickness. Ensure that the shim contacts the full width of the area to be shimmed. Do not use washers.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.