Even the original axle has proved too short but Ill have to live with it. With hind sight, it might have been better to swap the middle and rear axles, but it's too late now as I'm not inclined to take wheels off once fitted. The crank pin bushes have been made up and they, together with the coupling rods have been fitted. The wheels go round, after a fashion, but some further work will be required to get smooth rotation. I think 120 degree cranks are intrinsically more difficult to set up than 90 degree. Also, there is some suggestion of a rod centre discrepancy on the front left despite the careful use of the axle setting jigs. This loco has a different type of wheel set on the front axle - Stanier pattern bevel rim. with pin between spokes and built up balance weights, compared with the middle and rear sets, which are original plain rim with cast balance weights. Naturally, the Gibson wheels must be from different moulds, so although they are nominally the same diameter and crank throw, there might be some very slight variance between the two types. Hopefully, the slight jerkiness can be eliminated by judicious opening of the coupling rod holes, but I don't want it too sloppy to start with. Dave.