"Issue: a noise which CAN be described as a rubbing/scrapping/drone or in some cases maybe reported as a...

Bulletin number

SSM63897

Component

Power train: transfer case (4-wheel drive)

Summary

"issue: a noise which can be described as a rubbing/scrapping/drone or in some cases maybe reported as a vibration is found to be evident from the left hand front corner of the vehicle. The noise can also be described as similar to a brake rubbing or wheel bearing noise and can be variable from vehicle to vehicle. The issue can occur at different speeds/gears and in steady state driving conditions up to 50/60mph (80/100km/h), however the noise in most cases is more prominent in 2nd gear coast down particularly around 12mph (20km/h). To confirm, the noise can listened to using ‘chassis ear’ fixed to front differential rh mount. Cause: chordal vibration of the transfer case chain on coast/overrun. Fitment of the front differential support bracket may eliminate the noise without the need to replace the complete transfer box assembly"

Owners of these vehicles have filed 13 complaints in the transmission category.