2016 Sportsman 850 SP questions

Hello all,

I’ve just recently purchased a 2016 S-Man 850SP and have noticed several posts on here regarding my model and have a few questions. I hope I can get some candid answers:

1. Frame braces. I notice several people have done this upgrade. I’ve seen a few pics of the broken frames. Obviously its a problem. I’m probably going to do the upgrade to my machine because of what people have reported. My question is, what were people doing when the frames cracked? I’m not trying to be a smarta$$ with this statement, but please don’t give me answers like "using the machine as intended" or other random answers. I swear I’m not trying to be a troll or start arguments, I’m just looking for specific things to avoid until I can get around to performing the mod.

2. Front diff. I’ve seen the posts about front diff cases cracking. This is a three-fold question. The 2016 models were supposedly upgraded to a 10% stronger case. Do they still need the mod? Does it apply to the EPS models? What were riders doing when the case grenaded? Again, not trolling, I’m just looking to avoid destroying expensive parts by running outside of what the machine can handle until I can get to the mod (if needed).

3. Seafoam. I’ve seen a lot of fans of this product. Can anyone tell me the advantages of using this versus any other product (like Sta-Bil, for example)?

Thanks in advance for your answers.

-Big E