I think they are too long aren't they? I used some modified ones from unlimited engineering... at least they said they were modified... They were shorter than the rear shocks and I'm 99% sure they were longer than front shocks.
I believe I still have the 4 I bought years ago... I used OFNA 9.5 front shock shafts in two of them because I bent one badly once. I believe it was a mm or two shorter than what was in the shock.
Although, with that in mind, the UE ones were still a bit too long. They would allow the arms to over extend, so running fronts may be more what you want. I was using RPM shock towers/arms on my maxx at the time. The UE ones may have been better to use with the knucklehead shock tower, but I hate running aluminum towers, especially when RPM is available.
If you'd like, I can dig through my stuff and see if I can find them for measurement purposes. I'm fairly certain two of them still have the original shafts in them, but I'm not 100% sure. If not, I'm also pretty certain I kept the original shafts... I haven't had a maxx for 4 years and I still have those shocks... I ran them on a savage with aftermarket upper arms that allowed for t-maxx shocks for a few years. Even running 4, they held up really well.
Sorry... rambling...
EDIT:
I had taken a photo for reference a while back and forgot about it.
This is an UE SuperMaxx shock: