Hi All,
Looking for guidance on a noise/sensation I'm experiencing in my 2005 LC100 with ~260k miles.
Between 50 and 75mph I get a noise/sensation that occurs in a pattern, I'd describe it as an mmmmmm, quiet, mmmmmm, quiet pattern. I have pretty new toyo open country at3s on the truck, maybe 2k on them tops. Initially I thought maybe one of the tires had a high spot or was out of balance...but then I took a ride with my buddy (sharp guy, he's an engineer) and he pointed out that it seems to happen every 30 or so feet, if it were the tires wouldn't it be more like every 6-10 feet?
The noise is similar to what you'd hear with aggressive MTs, it starts and stops around every 30ft or so. I cant notice it above or below those speeds. It's not as loud as a rumble strip, I can forget about it with the music on, but its definitely happening on every drive. I notice it more audibly but feel it slightly too, not on the steering wheel..more seat of pants. Almost constant at those speeds, sometimes it seems a bit less, maybe slightly more noticeable on deceleration - not much difference, and still does it in neutral. I did the rear u joints about a year ago and checked the fronts at that time, no play but I'm sure they could use a refresh.
The truck is on 33s with 1inch OME medium springs in the rear and torsion bars adjusted to match in the front. Had an alignment when the toyos were installed. I've done front wheel bearings and checked the rears. Car drives straight down the road and is pretty quite. Before the toyos I had Cooper STT Pros and they were in bad shape by the end, so its hard to say how long this noise has been happening because I never would have been able to notice it with the old tires.
Looking for guidance on a noise/sensation I'm experiencing in my 2005 LC100 with ~260k miles.
Between 50 and 75mph I get a noise/sensation that occurs in a pattern, I'd describe it as an mmmmmm, quiet, mmmmmm, quiet pattern. I have pretty new toyo open country at3s on the truck, maybe 2k on them tops. Initially I thought maybe one of the tires had a high spot or was out of balance...but then I took a ride with my buddy (sharp guy, he's an engineer) and he pointed out that it seems to happen every 30 or so feet, if it were the tires wouldn't it be more like every 6-10 feet?
The noise is similar to what you'd hear with aggressive MTs, it starts and stops around every 30ft or so. I cant notice it above or below those speeds. It's not as loud as a rumble strip, I can forget about it with the music on, but its definitely happening on every drive. I notice it more audibly but feel it slightly too, not on the steering wheel..more seat of pants. Almost constant at those speeds, sometimes it seems a bit less, maybe slightly more noticeable on deceleration - not much difference, and still does it in neutral. I did the rear u joints about a year ago and checked the fronts at that time, no play but I'm sure they could use a refresh.
The truck is on 33s with 1inch OME medium springs in the rear and torsion bars adjusted to match in the front. Had an alignment when the toyos were installed. I've done front wheel bearings and checked the rears. Car drives straight down the road and is pretty quite. Before the toyos I had Cooper STT Pros and they were in bad shape by the end, so its hard to say how long this noise has been happening because I never would have been able to notice it with the old tires.