Glad I checked again, because I didn't read & explore far enough...
Looking at the 2005 Owners Manual (available from this site), it appears that the standard spare winch nut was 6 points. All diagrams show the 'tire iron' (wedge on one side for removing wheel covers, 6 point socket on other) as the tool for both lowering the winch, and for removing the lug nuts. The 'speed crank' tool attached to the door and shown in these manuals was only intended for working the jack. Looking at my Owners Manual (hardcopy) and softcopy available for download from toyota.com/owners site, beginning in 2008 they show A & B versions, with A = 6 pts and the tireiron, and B = 5 pts and the adapter socket. Skipping ahead to 2009/2010, they exclusively show the 5 pt socket and the speed driver doing the winch lowering.
I bought my '08 in early March. From the service printout, I see 'spare tire carrier' mentioned on 8/14/2010 & again when reconditioned for resale this February. It looks like around $200 for this and another $45 for floormat (acceleration issue?) inspection, all charged to Warranty Pay. How much hardware was changed is difficult to determine. The cable looks new, the 'nut' is 5 point & parts of the housing look new, but the cable guide tube looks original. Hard to tell... There are also three very new sponge rubber blocks (front of van) to complement the two steel welded brackets towards the rear as a resting place for the spare tire. So did it start life with 6 pts or 5 pts? I'll probably never know....
Not quite. I assume that is the picture from the 2011? I don't have a snap-in retainer for the new 5 point driver in my door. I found my driver in a vinyl sleeve, stuffed into the scissor jack's vehicle siderail adapter. My 'speed crank' and a bag for the tire are attached to this door. This is how it shows it in the 2009/2010 .pdf manual
Originally Posted by brian_bp
If so, it looks like perhaps the changeover occurred sometime still in the second generation, after 2005 but by 2008.
It looks like some time in 2008. Toyota web site 2009/2010 has a nice new layout with a new pink trimmed sheet that gives great detail on how to use the 5 pt socket and speed driver on the spare. For older Gen 2 vans, the recall retrofit kit probably supplies the redesigned corrosion & breakage resistant hardware as a fix to the vans that don't pass the inspection. Nowhere are there any instructions on using this new 5 pt driver and the speed crank for lowering the spare tire on my car. Major shortcoming in the retrofit kit, as there should have been an instruction label pasted to the door warning of the new procedure.
Originally Posted by brian_bp
Are they upgrading Gen 2 vans with Gen 3 assemblies?
That's not an upgrade, unless the five-point socket is supplied and properly mounted; otherwise, a correct six-point driven winch should be provided for vehicles which had that as original equipment.
My comment was meant to be mildly sarcastic..... Again, the changes should have all been clearly labeled. But in reality, some 2008 & all 2009/2010 look to have come this way.