Last year production, first year for the FLOAT 3's ... If they were strictly FLOAT3 EVOL-R's... you couldn't install them with the chamber up, as the knob would not clear the bulkhead. So you would have to install them with the EVOL chamber down.
If you had the FLOAT3, NON EVOL model last year you could mount them with the chamber up as it had no knob to interfere.
SEE This thread
http://www.snowest.com/forum/showthread.php?t=383596
This year the FLOAT3 EVOL, AND THE FLOAT3 EVOL-R shocks are able to be mounted in the preferred "EVOL chamber UP" position. The EVOL-RC2 (aka, EVOL-X) from ALL years, including current models, must be mounted with the piggyback compression reservoir up and the EVOL chamber down...
It does not matter if the shock is mounted either way....Up OR Down... does not matter to the function of the shock.
The bushings for the 2013+ have an 8mm bush at one end and a 10mm at the other.... those are interchangeable depending on how you want to mount them.
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