Originally Posted by Skunk_Truck_2590

Na, it's not the 5th wheel unless the the trailer is cocked at an angle maybe. It's not just the Freightliners doing it it's also Kenworths. I haven't heard a Pete do it yet. It's also not coming from under the front end. These sound's alway's came from the rear of the tractor. I noticed while in the shop on the Wiley Sanders yard in Troy, AL. we pulled in and had to do some work that required the parking brake to be supplied. One guy stood in between the drives with his shin's up againest the rear axle and his back side againest the front drive axle and he pushed on it and I was amazed at the large amount of movement because of wore out bushings. Over 4 inchs of travel when he pushed them apart. I looked at him and said "And I've been riding around in this damn thing!" Never will I let my truck get like that. I told my step dad after they replaced the bushings that he needed to go over to the alignment shop and have the whole thing aligned other wise I wasn't about to get back in it and leave the yard.

"we don't have the time..." Well, you had better make time because I don't feel comfortable rolling down the road after what I just saw. I got him talked into it so I felt much better when we rolled out. I still can't figure out what the popping is though. I guess it is the 5th wheel but I didn't think it was because it's done it even right after I applied a fresh coat of grease.