153 to 156. Extention?

[luv2sledmt]

Im looking to put a 156 2.5 Challanger Extreme on my M7 from a 153. What do I need to do for extentions? I think the tunnel will be fine but what about rails? THANKS

 

[Frostbite]

From what I have read on the topic, it sounds like the adjusters give you just enough adjustment to be able to reach and adequately tighten your track with a 156" track, but it's close.

I have also heard guys really like that track on their M sleds.

Let us know what you think.

Now, if they'd make a 156" powerclaw........................

Good luck

 

[Coxy]

If my M7 didnt get ripped off, i would still be rocking the 156 on it! Powderclaw is good, but i think in our conditions around here, 80% of the time the extreme would outperform it. You should have enough adjustment, worst case take the black sleeves off the adjuster bolts, and tighten it up. I had sled junky upper idler wheels, which soaked up a bit more slack so i had lots of adjustment. Good luck brother!

 

[backcountryislife]

you will run out the adjuster JUST shy of the end, to be able to have adjustment ability later dremel out about 1/2" more hole so you don't end up too loose later.

 

[Braaap12]

If you went a big wheel kit I think you'd be fine...plus they look cool

 

[mattsoreide]

^^^x2. I put a 10'' big wheel kit on my m7 and have more than plenty adjustment!!! you dont need 10'' though, you'd be fine with an 8 or 9''.

 

[73GOLIATH]

hi
i run the 156 on my m7 all you need to do is grind out the back of the rail a little And it will adjust no problems or run a 9 in wheel kit and it should be fine