05-05-2021, 04:36 PM
The axles which had Girling/semi Girling brakes from the factory had threaded bosses at the axle end for the 4 off 5/16" backplate mounting bolts. An adapted axle will need to use a nut and bolt setup. If there is very little clearance between the wheel stud and the brake cams, it is possible that someone has just used a hacksaw to cut away the original backplate and not machined axle ends to form the spigot that the Girling backplates locate onto.
Machining the spigot is a simple job on a lathe, but as the hole in the axle end has not been concentric to the bearing surface in either of the cases I have machined, I would be wary of just sticking a bull nose live centre in the hole and getting to work. Either use a fixed steady on a bearing surface, or use a fixed steady and then skim the end of the hole true before using a tailstock centre.
Machining the spigot is a simple job on a lathe, but as the hole in the axle end has not been concentric to the bearing surface in either of the cases I have machined, I would be wary of just sticking a bull nose live centre in the hole and getting to work. Either use a fixed steady on a bearing surface, or use a fixed steady and then skim the end of the hole true before using a tailstock centre.