Slide the shims on (I had 3, so I put all 3 new shims on) and then slide the speedo drive gear onto the shaft with the lip out towards the threads.

Use some cam lube or another high quality grease to put a small amount of grease on the bearing, this will help the bearing wear when you are first driving it and there is not enough gear oil on it yet.

Drop the shaft into the housing.

Grease the outer bearing with cam lube or what ever you used before and drop it in the housing.

Place a small amount of RTV on the outside edge of the seal, to help it maintain a leak free status.

Dab some loc tite on the threads then use a torque wrench and torque the nut to 125 first, then use a inch lbs wrench to get 2-7 inch lbs of rolling torque, adjust the preload by adding/remove shims accordingly.

I was dead on so I used an old bearing and a large deep walled socket to press the seal down, make sure you do not cock the seal and destroy it.

Slap a fair amount of Vaseline into the center covering the walls. The Vaseline will give the Needle bearing a good surface to stick to so you do not need to worry about them falling out as you install it.

Clean off the gasket surfaces and put a new gasket on, dab some RTV to help hold the gasket in place. Drop the competed assembly into the Transfer case.

Install the 5 housing bolts and the speedo cable and reinstall your drive shaft and your good to go.