Posted in the General section and didn't get any replies.
I put a heavy duty MB drive shaft in my sled about 9000 miles ago. It's got a lot of hard miles on it. I was wondering if anybody has ever broken a heavy duty shaft after a lot of miles? I'm going to start working on the sled in the next month or so, and I am trying to think of what needs replacing.
The sled has about 11000 miles on it, I was thinking about changing the jackshaft too.
Any thoughts?
I put a heavy duty MB drive shaft in my sled about 9000 miles ago. It's got a lot of hard miles on it. I was wondering if anybody has ever broken a heavy duty shaft after a lot of miles? I'm going to start working on the sled in the next month or so, and I am trying to think of what needs replacing.
The sled has about 11000 miles on it, I was thinking about changing the jackshaft too.
Any thoughts?
APEX 06
TY 4 Stroke God
- Joined
- Apr 30, 2009
- Messages
- 4,016
- Reaction score
- 36
- Points
- 1,253
- Location
- Sheboygan, WI
- Website
- www.sheboyganyamaha.com
- Country
- USA
- Snowmobile
- 09 Nytro XTX, 08 Apex Mtx
Have the HD shaft on my 08 Mtx with 4500miles with a superchager on it and all is good. A-arm bushings or steering shaft bushings.

87gtNOS
VIP Member
- Joined
- Nov 30, 2005
- Messages
- 1,892
- Reaction score
- 74
- Points
- 1,108
- Location
- Toronto
- Country
- Canada
- Snowmobile
- 12 Apex XTX MCX powered
guardrail said:Posted in the General section and didn't get any replies.
I put a heavy duty MB drive shaft in my sled about 9000 miles ago. It's got a lot of hard miles on it. I was wondering if anybody has ever broken a heavy duty shaft after a lot of miles? I'm going to start working on the sled in the next month or so, and I am trying to think of what needs replacing.
The sled has about 11000 miles on it, I was thinking about changing the jackshaft too.
Any thoughts?
what is an MB driveshaft?
mdkuni
TY 4 Stroke Guru
MB = Micro Belmont, at least I think that is what he is referring to. Company in Michigan that makes them. I did break my Micro Belmont shaft somewhere around 10k. I now replace the drive shaft as part of my yearly maintenance.

DigitalFusion
VIP Member
- Joined
- Jan 19, 2011
- Messages
- 1,152
- Reaction score
- 123
- Points
- 988
- Location
- Chisago City, MN
- Country
- USA
- Snowmobile
- 14 Viper LTX, 10 Turbo Phazer MTX, 08 Phazer, 88 SnoScoot
md, you should note that the reason you replace the driveshaft yearly, is because you put more miles on your sled in a year, then some of us do in our daily driver vehicles!

DigitalFusion
VIP Member
- Joined
- Jan 19, 2011
- Messages
- 1,152
- Reaction score
- 123
- Points
- 988
- Location
- Chisago City, MN
- Country
- USA
- Snowmobile
- 14 Viper LTX, 10 Turbo Phazer MTX, 08 Phazer, 88 SnoScoot
md, you should note that the reason you replace the driveshaft yearly, is because you put more miles on your sled in a year, then some of us do in our daily driver vehicles!
mdkuni
TY 4 Stroke Guru
DigitalFusion said:md, you should note that the reason you replace the driveshaft yearly, is because you put more miles on your sled in a year, then some of us do in our daily driver vehicles!
This is true!

87gtNOS said:guardrail said:Posted in the General section and didn't get any replies.
I put a heavy duty MB drive shaft in my sled about 9000 miles ago. It's got a lot of hard miles on it. I was wondering if anybody has ever broken a heavy duty shaft after a lot of miles? I'm going to start working on the sled in the next month or so, and I am trying to think of what needs replacing.
The sled has about 11000 miles on it, I was thinking about changing the jackshaft too.
Any thoughts?
what is an MB driveshaft?
I was talking about Micro Belmont.
I think I might change it, just to be safe. Since I put a ZX2 suspension in the sled, there's not much to do to get ready.
mdkuni
TY 4 Stroke Guru
guardrail, you might want to take note of the fact that those MB drive shafts had a flaw. They did not recess the bolt hole on the chain case side like it is on the OEM shafts. This causes the stock bolt to bottom out and caused me a lot of headache before I found out. I had the bolt back out which blew a hole threw the chain case. Had to walk because of it.
It also explains why I stripped a couple of those bolts. I originally thought I damaged them during assembly.

mdkuni said:guardrail, you might want to take note of the fact that those MB drive shafts had a flaw. They did not recess the bolt hole on the chain case side like it is on the OEM shafts. This causes the stock bolt to bottom out and caused me a lot of headache before I found out. I had the bolt back out which blew a hole threw the chain case. Had to walk because of it.It also explains why I stripped a couple of those bolts. I originally thought I damaged them during assembly.
Interesting.........about 3000 on my MB with no issue......did not even notice what you are talking about
mdkuni said:guardrail, you might want to take note of the fact that those MB drive shafts had a flaw. They did not recess the bolt hole on the chain case side like it is on the OEM shafts. This causes the stock bolt to bottom out and caused me a lot of headache before I found out. I had the bolt back out which blew a hole threw the chain case. Had to walk because of it.It also explains why I stripped a couple of those bolts. I originally thought I damaged them during assembly.
I actually forgot about that. Luckily I noticed it when I first installed it. I just cut a little off the end of the bolt and cleaned up the threads with a triangular file. I always use loctite on that stuff. I had that bolt come loose on my rxwarrior and cause a lot of damage.

DigitalFusion
VIP Member
- Joined
- Jan 19, 2011
- Messages
- 1,152
- Reaction score
- 123
- Points
- 988
- Location
- Chisago City, MN
- Country
- USA
- Snowmobile
- 14 Viper LTX, 10 Turbo Phazer MTX, 08 Phazer, 88 SnoScoot
I ended up using red on mine cause it kept backing out. I might be replacing the track this year, so wish me luck.


- Joined
- Jun 28, 2004
- Messages
- 2,436
- Reaction score
- 500
- Points
- 1,723
- Location
- Clinton, Wi.
- Country
- USA
- Snowmobile
- '11 Apex XTX, '09 Venture GT, '06 Attak, 08 Nytro Hybrid
Get a little heat on that bolt before you try to loosen it. One of those small butane torches right on the bolt head for about 10 seconds and it'll come loose. I use red loctite all the time at work, and heat is the only way I've found that works.
Similar threads
-
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.