8 3/4 ring gear change for optimum low end performance

273 said

That's the problem with most mods everyone is different looking for different type of performance or compromises, unfortunately this leave no answer for the OP other than try different gears out. You might like 4.10 you may want deeper or you may find 3.55 is what suits you or maybe it's another part of your combo that your not happy with like cam.

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That's right. All too often, people build engines that make their best power and torque well above stock and in order to get there, you have to spin the engine to that point. Then people try to put a gear in that compromises that build and expect it to perform adequately. The engine needs to be in its power band to perform well, whether stock or otherwise.