Valiant Lancer steering strut bushings?

Wanting to replace the steering strut rubber bushings on my 1961 Lancer 770 4-door, all stock condition. This is the strut from the bottom of the lower control arm through the K-member.

The question I have is the replacement parts from Kanter (and Moog, etc) appear to be a small conical bushing, just one per side, and consistent with the image in the Service Manual. Mine however are the larger two-piece construction with large concave washers and 7/8" hex nut, more like what is seen on most larger American cars, including the 1960-64 Dart, Polara, Seneca, etc.

Was there a mid-year change in 1960-61 as the Lancer came alongside the Valiant? The LCA and knuckle and brakes, etc., appear to be the originals. What am I missing.

Thanks from NC, David.