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So I have a 2013 f150 with the 6.2 engine it has a 9.75 rear axle with 3.55 gears and I found a replacement out of a eco boost f150 with the same gear ratio I’ve been told it won’t work in my truck with the 6.2 any help would be highly appreciated
I don't see any issues with a new differential from a truck with the same ratio and axle... 9.75 from the same generation should cross over. Engine shouldn't matter.