(08 Apr 2023, 12:51 pm)Andreos1 wrote Which ones were these? Racked by brain and I can't remember any native examples having the rebuild.

I'm pretty sure most of them had rear rebuilds in the late 90s, round about the time they started painting the fleet in the red and blue livery. I'm not sure about the Y-regs but I'm pretty certain all of the A-reg ones were done. The majority of the C-reg ones were also done but I know a few weren't - 3752/5/7/8 come to mind.

Here are a couple of photos I've found of the rear rebuilds: - https://www.flickr.com/photos/gjm-photog...hotostream
https://www.flickr.com/photos/gjm-photog...hotostream