Blimey..... that's certainly plenty of beef!
TRs have greater need than a Vitesse or GT6 as they use the smaller bearings and stub axle from the the Herald and Spitfire, yet have the bigger wheels.....
As I have all the parts to hand and have been building hubs this afternoon......
Standard parts laid out in order
Standard set-up has both inner bearing races "floating" on the stub axle with bearing float being set by careful positioning of the castellated nut, which is not tightened, but held in place with a split pin.
All bending forces are taken by the stub axle and the bearing races will rotate (slowly) on the stub in service. Over-tightening, if only to shut up a whining MoT man who does not know better, causes more spinning on the stub axle and will wear a step in the bottom of it.
Spacer kit adds a tube between the standard bearings with shims used between it's outer end and the outer bearing to set the float (shims not very clear in the pic)
With this addition, once the correct shimming has been determined the hub nut can be torqued up, clamping the bearing races together at exactly the right distance apart to give the desired end float. My preferred is just the barest hint of play felt with the wheel fitted - which is tighter than I would dare without the spacer due to the aforementioned spinning bearings issue. Because everything is now positively clamped together the inner races won't turn on the stub axle and the spacer shares any bending loads applied with the stub axle, making the assembly considerably more rigid and reducing flex.
Moos (Triumphtune) used to sell nylon bushes, before poly became available. So could well be theirs, depending on age. I think Jons bushes are a fairly recent addition to his range. May be a different hardness?
on the subject of suspension bushes has anyone come across small triumph front wishbone bushes in black plastic/nylon? i have all the wishbones off the red spit bar 1, and all are fitted with a pair of black nylon top hat bushes with a central metal sleeve. they are obviously as hard as nails but there sure as hell isn't a mm of play in them. one top wishbone seems to have the normal problem of the sleeve rusted to the through bolt so i may end up having to cut through the bolt either side of the bush which will probably wreck the bush. i do have it soaking just in case i may be able to shock it free, but many wasted hours in the past indicates that this will probably be unsuccessful.
so just seeing if i can track down a replacement.