So, what's involved in making a 133.5" on a 96 XLT SKS accept a 136" track? Also, did this sled come with what's considered "Xtra 10" suspension in the rear? Thanks

Thas sled came with the first year Xtra-10 133.5. That suspension was not built in a 136" length. The replacement was the Xtra-Lite uncoupled 136, a completely different rear suspension. This is probably what you are referring to. There is no Edge suspension that was a long track from the factory.

Why do you want to go to 136?

You will only gain a little over an inch of track on the snow.

Well, i have the 136 track, and no track for the 133.5. Yeah, it came with the 133, I was just wondering if there was something I could do to get it to accept the 136. I see rail extensions, but nothing for this application.