I've searched a couple hours now and found exactly one poorly made video, (but still helpful) and nothing else on how to remove and reinstall a transmission.
mine lost forward so I have a low mileage one to install in it's place.
What else should I do when I'm there? Is the rear main easy? Transfer case?

Anything you have helps. Thanks

 

Remove both F/R Drive Shafts
Remove E Brake Assembly
Disconnect all TC wiring/linkages/vent line
Disconnect AT shifter linkage/wiring/vent line
Remove frame support under cats
Support TC
Remove TC support
disconnect O2 sensors
Remove Y pipe assembly
remove round plate on TC back (easier to drop TC) then remove gearset.
​​​​​​loosen TC Bolts to AT (front/rear of TC)
Remove TC mount
Drop TC

Remove Trans lines from TC
Loosen Torque Converter bolts (spin crank by hand and get to them above starter).
Loosen bell housing bolts
Drop TC

Basic instructions but ya get the idea

 

That actually does really help. Thanks!
Anything about alignment on resemby?

 

Make absolutely sure you seat the torque convert properly before install. Measure the depth per the manual. I would recommend replacing the tcase center shaft o-ring seal while you have it out. Good videos on how to to do it, bascially loosens the nut but do not remove. Tap shaft out far enough to remove o-ring and replace. Coat the head of the shaft with Permatex Hi-torque sealant. Reinstall and replace o-ring on nut end. Tighten nut one eighth turn additional, re-stake the nut. If your transmission is used you might want to consider replacing the front seal on the transmission. When you have the transmission out check the rear camshaft plug for leakage. You can email me and I will provide transmission manuals.

 

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Thanks, great tips!

 

The transmission/engine have dowel pins that will properly seat them together when aligned and stabbed properly.

 

Two email addresses in my sig