2017 axys 800 bent / missing rivets and broken torque arm bracket

[johnnyg67]

Took my son's 2017 Assault 800 (he just bought it Sept) into the garage for a look at a squeeling noise he noticed (he seemed to think it was at idle and around 5800 rpm) and found tunnel rivets missing / bent on the PTO side jackshaft bracket as well as a cracked bracket that is fastened to the link torque arm (1019180). We have new motor mounts on order as well as the limiter torque arm bushing (3022281) and replacing all the bracket / footwell rivets. My question is, what do you recommend I do about the broken bracket as I really do not want to change out the tunnel. I took the broken peice out and was surprised that the hole is actually larger than the bolt size, I assume this is because the bearing/jackshaft bracket is what actaully stops the link torque arm flex and the larger hole is to allow movement? I was thinking of making a bracket out of maybe 3/16 steel to reinforce it a bit or does slp have a torque arm anyone would suggest for this side? I think what happened was the motor mount bushings squashed and caused a ton of extra flex on the arm and rivets, eventually cracking the bracket which caused a few rivets to get stressed and pop/ bend? I've read guys noticing the footwell rivet loosening out and starting to vibrate.

Thanks for any feedback !

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[GoHiSK1]

Do you have insurance policy on the sled ???
Might be time to get a different or newer ride .
I have encountered a similar problem with a 2016 AXIS after hitting a submerged stump/broken tree with the track/drive axle . Impact broke the quick drive belt .
Thought it was broken drive belt until I opened the clutch side panel .
Long story short I replaced the quick drive belt and carried on .
Rivets got loose and wore the aluminum out and tunnel started cracking .
Filed an insurance claim and sled was deemed a total loss .
PS your sones sled is in worse shape than mine was .

 

[johnnyg67]

Thanks for the reply! Yes, sled is insured. Sled actually drives very well so I don't know if it was from a stump or not?? Those mounts definitely are squashed so I am going to change them out and see from there. The jackshaft bearing seems totally tight also, all rivet holes line up from what I can see as well. Dealer said they have changed a good handfull of tunnels on these but he said it was mainly from the jackshaft bearing exploding. I see the 2016 sb assault 800 had a "inner torque limiter weld" https://www.polaris.com/en-us/snowmobiles/shop-parts/1017/1017131/ but not in 2017.