Re: 92 E150 lift, question about regearing and brakes.
You could swap in an E250/350 front axle when you do the lift. Attachment points are the same. But the I-beams and brakes are bigger on the E250/350 axle. Just let Action vans know this so they can send you the taller radius arms. Front axle does most of the braking anyways, so the rear is probably fine. Maybe just a good brake shoe upgrade.
However, if you do the larger axle swap, you will need new wheels, and the front bolt pattern would now be 8x6.5. You should be able to swap rear axle shafts to match.
2000 E450 dually V10 wagon