alcohenusa
Well-Known Member
I believe this issue is the slip joint needing better lubrication. See this thread.Interesting theory.
I have the same bump on stopping start, but like others here mine is more pronounced the warmer it is. Under 50-60 degrees F and the bump is usually gone. Hot summer days of 90-100 degrees have the bump the most pronounced. I don't understand how your suspension theory plays into the heat or cold affecting it? That's why I think it is the spline joint, with some expansion or contraction due to ambient temperature. I guess it's possible the same with this suspension, with regards to temperature?
I've had 250 or more pounds in the bed and it doesn't matter. In my case that's a rack, rooftop tent, cooler and a couple plastic bins of camping equipment. It didn't make a difference.
One thing that will be interesting for me, and I will post my observations here, is when I start towing in the warmer weather. So far my towing has all been in winter, near freezing temperatures. When I start towing at 60-70° and above this spring, it'll be interesting to see if I have the bump or not with the trailer.
If it is the leaf springs, I wonder if upgrading them to either the Tremor pack, or other aftermarket options, would fix things?
https://www.ranger5g.com/forum/threads/how-to-lubricate-your-driveshaft-slip-joint.16648/
Mine does this and it disappears in cooler weather as well. When the temps get higher I will be taking it back to the dealer as I am not going to do it myself. They blew me off the first time, but that was when the truck was new. I was hoping it would improve over time.
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