Re: Hit a bump and track stretched 6 inches?!?!?
first of all, why did you remove the shock? You said more travel, this machine is by no means a snowcross racer. Please!
You need to take a couple more photos, specifically of the front of the rails. The last photo wouldn't come up for me. But by the one I could see it looks as though the front tourque arms have broken free from their mounts.
In other words, the slide rails have slid forward and and up causing the loose tension. It looks like the front idler wheels are floating front and back. It may be designed to do this, as it appears the rear ones are designed to float front to rear a bit. I would suggest that removal of that shock was your undoing. Was it spring over (coil spring on the shock)? If so that is designed to keep those arms spread and maintain track tension. Or you removed some linkage that you should not have.
Give us some more info about what you removed, and I think we can give you some solid advice.