Mike, a couple things:
The catalog is full of editing mistakes. Don’t assume “sprung” in the features listing really means the car will have the old trucks. I believe it’s far more likely to be a mistake. At this point, I’m assuming all the scale freight cars have the new design.
As far as replacement trucks, unless you can find NOS at a dealer, I wouldn’t order them from the catalog. They may just be replacement versions of the new design. I could be wrong, but I can’t imagine them producing the old design solely for sale as a spare parts item. The best way to get the old trucks for your new cars (sounds crazy doesn’t it?) is to find an inexpensive donor car in the secondary market. The trucks you want were produced on lots of different cars over an extended period of time.
Just my $0.02 worth (and maybe not even worth that).
