You could try it the other way around... Wedge the spring in one shoe and align the two shoes... then wedge the spring onto the other with a flathead driver.
I think the stock maxx shoes are graphite or the like... Dunno, but they seemed a bit powdery.
Just don't stretch the spring out or it won't work right! I know this from my buggy who's clutch never worked right till I got a new spring and put it on right.
well now that i finally got a clutch that works, i can try to get the carb tuned in right.... so soon ill be asking questions about that he he. thanks guys