hi Baz.i am of need of some help here in the states.we have a lansing henley herculies 12.9. i,m trying to find differential unit or parts.it has a GNK heavy d60 axle assy.any parts or assemblies ,new or used that can be found would be great.i have been keeping the old girl running for the past 25 years.very good truck, just hard to find parts here.i have lots of info on the axle. if you can help ,please let me know.thank you.bob