Ok a few questions in one, don't give me the search line because I did.

Where do I source stock 4.56 gears? Don't want to drop a load on new gears just to try out and then go to 4.88's. Also, MC doesn't offer built 7.5 IFS (front) thirds anymore by their website and I have too many projects to build the 3rd myself.

94 reg cab 22re w56 tranny

I run heavy cooper stt's in the summer 30x9.5r15 and stock 225's, studded in the winter. Will consider switching to all 31x9.5s after a regear once tires wear.

I regularly drive red mountain pass and wolf creek pass, very slowly mind you. These are 11k+ in elevation.

Plan to do alcan in my setup, which includes a 2001 FWC eagle, so I am looooadin this reliable dog down!

I currently have 4.11s and not only need to regear for tire size, but also for higher torque on climbs with a lot of weight. Weight being such a huge concern I am not sure I will go taller than the 30s I have on there, mayyybe 31s. I have done the calculations and understand the RPM differences I am looking at and therefor don't really want to go with 4.88's but could certainly be talked out of it with good reason, like the fact I probably wont be cruising 75-80 with my camper on there anyways.

Super thanks!

 

Source for stock carpart.com. As for purchasing regeared, 4.56s aren't super popular in the wheeling circles. Can purchase gears and master rebuilt kit to have someone regear for you. Just do your research on installer as not all are created equal.