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Can you ?
Probably not without modifying it. The spacing will be slightly too large between the cogs because 10 speed cassettes overhang the free hub a bit and so you might have to take a bit off either the hope cog or spider to get this right for 9 speed. You'd then have to add a spacer on the inside to get the right stack width so there isn't any play. Then there's the supports which look too high for a 34 tooth cog and might interfere with the chain.
It doesn't sound easy to get it perfect but might be doable.
Probably more likely with a OneUp, as the use spacers, unlike the T-rex.
I made an 11-40 9speed like this http://www.pinkbike.com/photo/10696427/
works perfectly.. but no bling value 🙂
If I had had a 40t ring and a set of short chainring bolt spare i would have gone for that.
What I am thinking is an 11-36 1x8 so I can use XT thumbshifters.
you can fit any size ring onto it you have handy and space it for 8 speed too.
PM me on PB if you want to try one.