Hello all. I have changed the wheels successfully and quite easily on several Triang Pullman "shorties" using R 8096 12.6 mm. diameter wheels. Very pleased with the improved running, especially over points. OK, all well and good. However, I am stumped when it comes to the "exposed-axle" variety, the ones with the split plastic axle covering and the metal axles showing through the lower chassis of the coach. Is there any way of changing these without resorting to drastic and difficult (for a cag-handed individual like myself) measures ? Perhaps a kit of parts, or wheels that fit over the metal axles ?