how to tell what size of track your sled has?

[Bnorth]

Judging by the amount of extension behind the seat that's what a zx chassis with a 151 looks like. I have a few buddies that ride them and the 144 has a shorter extension and the 136 is basically flush with the seat...

 

[barleyfarmer]

Baler splicing kit should work
View attachment 114869

Plus you could shorten or lenghten the track for the snow conditions!And changing the track would be awesome!If it was only that easy!LOL!

 

[Turbo-North]

First measure the distance from the center of one hole to the next. Probably 2.52(pitch) Then count the number of holes and times it by 2.52 and you will have the length. If it is a 2.52 pitch and a 151 it will have 60 holes.

See as he said!! Track Length