My LC has been parked for a long time. I finally cleaned it up, serviced it, etc. I took it for a spin on the rural roads around my area and all seemed fine. Then I took it on a 30 mile drive to see how it did on the road. About 45 mph it started a high frequency vibration. Not bad, just noticeable difference. By 60 mph it got bad enough that I turned around. When I got home I looked things over with a thermal camera (used for electronics testing), Nothing really got my attention. Ok... lets shorten this.
The rear u-joint has some slack in it. So does spline that connects the short shaft at the rear end to the long shaft (drive end). The u-joint moves inside the bearing caps when I twist the shaft so I'm sure that's got to be replaced. What I don't know is how much movement the splined shaft should have (twist not longitudinal), I don't think any is ok. I'm thinking about replacing the whole driveshaft, not cheap or fast. 240k... maybe it's tme?
The rear u-joint has some slack in it. So does spline that connects the short shaft at the rear end to the long shaft (drive end). The u-joint moves inside the bearing caps when I twist the shaft so I'm sure that's got to be replaced. What I don't know is how much movement the splined shaft should have (twist not longitudinal), I don't think any is ok. I'm thinking about replacing the whole driveshaft, not cheap or fast. 240k... maybe it's tme?
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