Rear axle ratio options

Does anybody know what other gearing options are available for the B2200 rear end? Currently have the stock 3.909, looking to go 4.XXX. I am hoping to find a junkyard upgrade that will bolt right in, keeping the stock driveshaft. Only issue I may have is I have an ABS rear axle.

You're stuck with that, unless you swap the whole rear end.
Toyota has a massive aftermarket following, so that might be your best bet.

The 2wd B2600i has a ratio of 3.727:1 and the 4wd B2600i has a ratio of 4.300:1 and 4.444:1