[Gunter]

Sounds like a good plan.
~25" front means you'll need the rack spacers!
Open the smugglers box.
You'll see the U-joint on the steering column, which is clamped to the splined shaft.
Just loosen the upper clamp-bolt and spray some lube on the splines before you push up on the rack.
To get the spacers in the easy way, take one existing short bolt out, replace with the new longer bolt for just a few threads.
Remove the old short bolt on the other side, push the rack up, install spacer and new longer bolt loosely, then install spacer and new bolt on the other side.
This way you don't have to grope for the threaded holes.
Tighten both new bolts and finally, tighten the U-joint clamp.

Adjusting ride-height front is the other way around: Moving the adjuster-tongue UP means lowering; use oil on the screw-threads and contact-point

I suggest you do the rack-spacers and re-indexing the T-bars at the same time because the front has to be lifted to do both. (No weight)
Lift safely with extra supports.