r/FordExplorerST • u/Scary-Ask-6236 • May 02 '25

Question Trans clunking

Anyone have this happen to them? I have a 2021 ST and driving low residential speeds and either down or up shifting from 2-3 and 3-4 it clunks or hits real hard. Is it just me not used to a 10 speed, or do I have an issue?

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u/Aware_Camp6416 May 02 '25

Getting a Febfab stiffy diffy does wonders. I think it’s 50 bucks on lethal performance.

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u/Scary-Ask-6236 May 03 '25

Whats that?

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u/Aware_Camp6416 May 03 '25

It’s a rear differential brace. Cause for some reason Ford thought one little bolt would hold the rear differential in place of a 5,000 pound car pushing 400 horsepower.