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Like the title says, has anyone swapped in a 4.30 rear diff? any input?

I am swapping in a full floater for a customer with the 5lug fake dually and was "toying" with the idea of using a 4.30 rear diff ratio in it and wanted anyones input that has this gear set. I know there are 4.56 and 4.88s but I am looking for someone with 4.30s and possibly a 4 speed.

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I've got a '91 Seabreeze with a 4.1:1 and a '93 Warrior with a 4.3:1. Long story. Can't tell the difference without looking at the axle codes. About 5% difference. 3000rpm vs 3150rpm. Both automatics, of course.

I am thinking the 4.30s in an older 22R would give a little bit more pep to it, I know its not much but then again an addition of a header etc doesn't provide an overwhelming increase in power.

I dont think it would be a drawback to use these instead of 4.10s

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Every little bit helps. If both were available at the same price, I'd pick the 4.3. Just don't expect to feel any difference with your butt dyno! Maybe with a stop watch.

my butt dyno is out of this one, my customers butt dyno is all that matters, I can always swap the 4.10s in if they arent happy with the 4.30s. thanks for your input- having both in 2 different RVs is probably the best scenario for advice on if there is a notable difference between the 2.

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No noticeable difference. Dead slow vs dead slow.

LMAO- I know what you mean, mine goes 0 to 60 in like ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................wait for it ............................................................................................................................................................................................................................. ............................................................................................................................................................................................................................................................................................................................................................................................................................

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