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I haven’t done a gear box but I’ve tapped a turbo for EGT the same way before. It also helps cuz you can leave the engine on and the exhaust will push it out as you go

Are you gonna take apart the box Scott?
I have done it without taking the box apart. Center punch where I want my hole. Then put a decent dollop of grease and begin to drill. The grease holds the chips. Takes a while cause you need to put fresh grease on several times.
After the hole is drilled grease up your tap and go slow.
Course you gotta inspect it all too. I've had to take apart a box I didn't pay enough attention to and dropped metal chips in it.
Just another method to consider
I have one if ya need it...
A couple inches. I'll keep an eye on them. You can see the shiny spot of the gearbox where the tire used to rub, before I put spacers on it.How close are the tires to that hose at full passenger
All fixed up!
I got a snap ring at McFaddendale hardware today and it fit just fine, box went back together, installed on the truck, filled and tested, looks we're ready to rock crawl. You can steer it lock to lock on asphalt one handed.
@kgblazerfive I checked he tire/hose clearance , 3" at ride height. I'll keep an eye on it this weekend.