This will likely only result in a minor edit to the PNAERC list, but it was too interesting (to a "parts guy" like myself) to pass up on. The North Jersey Electric Railway Historical Society posted on Facebook a couple of days ago that they purchased a pair of trucks from the Connecticut Trolley Museum in a deal arranged with the help of Bill Wall. A photo is above, and you'll notice that these aren't just any old streetcar trucks.
From what I can tell, they're ACF Class C trucks, probably built around 1905 - and in all likelihood, this is the only surviving pair of this type. It's a pretty bizarre design, at least for this country, with the journal boxes set in castings that pivot off hubs near the truck bolster. Trucks with this feature were more common overseas (London County Council 1, just restored at Crich, has trucks with a similar layout) but were quite rare in the U.S. The closest thing I can think of is the Brill 95E truck designed for CSL 7001 (photos here), but that was a plate-frame design with inside journal boxes that today is extinct.
Anyway, where did these trucks come from and where are they going? They're off Springfield Terminal 8, a wooden cab-on-flat work motor that arrived at CTM in 1956 and was dismantled around 1983 after it became too badly deteriorated to save. And they're going to Trenton Street Railway 288. They're not strictly correct for that car - it had Brill 39E "Maximum Traction" trucks in service. But those trucks, or any MaxTrac trucks for that matter, are essentially impossible to find. And if finding a visually similar truck is no longer on the table, any kind of period-appropriate streetcar trucks should work. I think it's great that this unique and historically significant pair of trucks has a promising new home. Thanks to Bill Wall and Bill Hirsch for background info.