Last trip I took, I noticed a pretty horrendous noise coming from under the truck. It would happen when I would come off a trail and drive on a paved road after unlocking the CDL. Seemed to coincide with the CDL finally disengaging (it takes it a little while sometimes). By that, I mean that immediately after I switched the CDL off, it wouldn't make the noise, but the more I drove, the louder the noise would get until the CDL released and then it would be fine. I should also note that this noise would only occur under power. Quiet when coasting.
Driveshafts appear to be okay, Tom Woods in the front that gets regular grease. I have a Detroit in the rear, but I'm familiar with its various noises, and this was decidedly different.
Any ideas what this may be? If I have time to get under the truck tonight I'm going to check the fluid level, but I replaced it about 5k miles ago and I haven't seen any leaks.
Driveshafts appear to be okay, Tom Woods in the front that gets regular grease. I have a Detroit in the rear, but I'm familiar with its various noises, and this was decidedly different.
Any ideas what this may be? If I have time to get under the truck tonight I'm going to check the fluid level, but I replaced it about 5k miles ago and I haven't seen any leaks.