Setting ride height with spacer prior to setting final front

[<DavidWMalaney@eaton.com>]

All,

I have read that you should place a spacer between the shock arm and shock
platform in order to approximate laden ride height for final torque setting on
front suspension bushings.  Here is the question:  should the spacer be 1.5
inch or 2 inch?  Seems I have come across both dimensions in the archives.
Which one's right?  Or, either one will work and be close enough.
TIA

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Dave M.