The RangerStation historically was the 4WD with the RangerPowerSports being the 2WD site. But the competition folded a few years back, so while we 2wd enthusiasts are here in small numbers, the majority are still 4wd - and the articles tend to match.
You can't just "swap the output shaft"- it is installed from the front. So, you have to pull the entire transmission apart - then install the 2wd output and reassemble. You can look at it in positive light - you have opportunity to rebuild the transmission.
Win is correct on his list, but missed the 3.8 Essex V-6 'stangs also use the 4R70W. And you don't want a 4R70W of a 4.6 V-8 'stang/Cown Vic, etc - they have the wrong bell housing. If you are in southern states, you can also find the occasional unicorn - 2wd V-8 Explorer.
If your Ranger has a manual, the F-150 with 4.2 and M5R2 as does the M5R2 out of a T-bird with 3.8 aka SuperCoupe. Several individuals have used T-5s from Mustangs, with fabricated hydraulic clutch linkage.