This is a rumor list.
1. Pop out Side windows-There is doccumentation that says there were. Owners manual discusses how to remove and store them.
There is a gentlemen in Lancaster, Ohio that has an '84 with a 10/83 production date that has the pop out window's and he has the storage bags with them. He's the original owner. I do have his number here somewhere, let me get a hold of him and get pictures.
2. Rear bucket seats-There are reports that they are out there. No pictures to back it.
3. 4.0L B2 in late 1990-No proof that they exist. If Ford made Prototypes then they would never have been sold, and likey to have been dismantled. 1991 was the intro of the Explorer. Someone that started the rumor likley saw an Explorer Sport 2 door and thought it was a new B2.
I have now seen two of these. The first at a salvage yard (didn't have my camera) the second at a bodyshop. I have posted pic's, including a picture of the emission sticker. Both had production dates of 5/90. From what I understand, they were special order only.
4. 8.8 rear axle.- Rumor and no proof of existance.
5. D35 front axle-*Confirmed*. Nearly all 1990 models will have a D35 axle. 3.73 ratio is a guarantee.
6. M5OD 5 speed trans.-*Confirmed* Most if not all 1990 models will have this as a manual trans. 1989 saw the last of the FM146's.
7. Real 2wd trans without dummy case in 2wd models-Yes and no. later model ones are rumored to have a ranger 2wd trans. AllanD would be able to confirm this.
All I can think of at the moment.