Hi Clif, I had the same problem with the Modelworks clacks although I had replaced them with s/steel balls. I dont know if their measuremnts are correct for the lift so I just decided to replace all fittings with bought ones from Blackgates. I had heard of this problem with their fittings on other locos Brits, 9F's etc so its no surprise. Garry MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.