What do u do when u find a question u KNOW the answer 2 from experience, but poster wont accept IM or e-mail?

I am an auto mechanic, I have seen this on many trucks that the poster has, The poster was tzpart. I would like to help them b4 they waste a lot of money. The rear axle differential is the problem, not the engine. it needs to be replaced. One of the gears is broken and binding it up. DO NOT do anything to the engine until you fix the differential.



I have a 99 f150 w/5.4 under normal conditions the truck will start to buck in overdrive or drive ?



it doesnt do it all the time mostly under accerlation it bucks and losses power act like

its down shifting almost but it jerky, feels like the u-joints are about to be knocked out, change tps sensor ,puzzled?clean fuel filter,serviced trans.checked for vacum leaks,I dont know were to go from here can any one help
What do u do when u find a question u KNOW the answer 2 from experience, but poster wont accept IM or e-mail?
Post the answer here and tell them more info can be had if they supply their email. ~
What do u do when u find a question u KNOW the answer 2 from experience, but poster wont accept IM or e-mail?
That said, most will not follow up.

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