the comments about using same shim thickness as original are fair enough,
the Sals is so over engineered for the Landy that its very forgiving of a bit of intolerance, but its really nice to minimise the backlash ( Truetracs really tighten up the slop)
I only had a Salisbury apart to fit a Maxidrive or Truetrac, in which case you defenitly need to set up from scratch

