Ok I will let you know how I did it.
1. First off get the end of the sled as high as you can in the air
2. Remove Skid
3. Remove the funny looking nut that holds the brake rotor on (I broke it loose with a screwdriver and hammer)
4. Remove the bolt that secures the drive shaft to the diamond drive (this requires a very long extention, the bolt is located in the middle of the hollow driveshaft on the brake side, use a flash light to look inside the driveshaft and you will see it)
5. Remove the bolts on the inside of the tunnel that hold the brake assembly on.
6. Slide the driveshaft towards the brake assembly far enough to get the splines of the diamond drive out of the driveshaft.
7. This should give you enough room to slide the track out between the tunnel and driveshaft.
Good luck this is not a hard project but can be time consuming, it is a very tight fit getting the track out between the driveshaft and tunnel. It can be tricky getting the track wadded up enough to get it off of the drivers too.
I am sure I forgot some minor details but somebody else will probably chime in if I forgot something.