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I ended up with the dreaded rear window leak, third brake light leak, and then my windshield was also found to be leaking. Total time at the dealership shop for these repairs was 2 weeks in July and then from 3 August until today (23 Sept). While it was there, had them look into the rear diff...
I have a 2019 Ram 1500, 5.7L with 3.21 rear gears. I want to swap the gears to 3.92s. Does anyone know what other modifications would be required, if any? Computer reprogramming? Trans cooler? What exactly are the differences from factory other than the gears?
How realistic / costly is it to switch a truck that comes with the 3.92 gear ratio back to a 3.21?
I’ve found several trucks that I like that have the 3.92 instead of 3.21, but I do not need the 3.92 as I do not do a lot of towing.
I realize this may be a really stupid question.