The sound is a low rhythmic thump/"limp"/roar that matches the speed Im going but it only starts when Im going 75mph or more and once it starts happening, when I push pretty hard on the breaks, I feel it hard under my foot and the sound gets so loud when I break and I feel it so hard it seems like the back end of my truck is gonna fall apart.
I love my truck, it only has 131,000 miles. Theres so much life left but I dont want to put anymore money in it if I cant figure out what this sound is.
I have been told that it might be a rear differential problem but when I took it in to a specialty…
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