In the sand the 4 seater will be interesting with 4 adults in it. I have seen Can Am and Polaris fours seaters fully loaded scooting along pretty good in the dunes. I have also seen some that are dragging ass and slugs.
Cringe. I can't even count on both hands how many times I've seen SxSs drifting like that go over... Hell, they're fully drooped up front and 3-wheeling... :biggrin:
Now we know why the axleshaft was discolored when the shock broke.
WOW my funco weighs 2300 wet with a sequential 5 speed and a 6 cylinder 2" hollows up front, 934 axles and mid board hubs and 3.0 shocks!!
that bolt together lower clevis and spring pad is a poor design, those two should be one piece and the shock shaft needs be a bigger diameter and perhaps the shock shaft should go further into the "new part" so the smooth part of the shaft is in a counter bore of the "new clevis"
I didn’t either but clearly there is a raw and a black part that come together and are two pieces. And from what I gather the shaft would be the only part keeping them together. It is kind of like needing a 4x4 post holding up a structure but one foot ftom the ground you cut the post in half and set them back on top of each other and exclaim “ it’s still just as strong in the downward direction” now add some movement to the upper structure still applying the same weight and then apply super lot of extra weight (as in a G out) the forces would go exponential!!! And guess where there would be a problem?
It’s all about Keeping your momentum. I had an xp4 1000 and used to dune with 4 adults. Not the funnest in the world but you can do it.
Perhaps that is what happen to Wayne Matlock with his Pro R at the Baja 1000. Although some are saying the failure was due to some aftermarket part.
yeah but in that truck application im sure its not being bottomed out a lot and perhaps there is another bump stop on the chassis too so the clevis never sees massive compression. that would remove all massive compression forces at that intersection . im not a SXS guy but im guessing the shock is the bump stop on that SXS and if it is--its the weak point in the design
The raw part is the spring perch, which Polaris has been using for eons now:
The shock shaft failures were with the XP1000 and the fact Walker Evans used to small of a diameter shock shaft. Most of the failures happen after someone sent their car airborne to great heights with the compression fully closed. LOL!
As you guys were all fond of saying about the Speed UTV, "You haven't really tested it until you let Joe Public beat on it."
Joe Public has a way of finding failure points. LOL!
the shorter the clevis the less of a problem. just imagine the same SXS shock shown on the pro but lengthen the clevis even more and you get where im coming from. the way Honda did it is the bomb very strong and takes advantage of the larger diameter tooThe raw part is the spring perch, which Polaris has been using for eons now:
It works similarly to any of the King/Fox coilovers, except it doesn't use a snap ring, it will just fall out to the right (in the above picture) once you remove preload from it and slide it up off the machined lip in the spherical.
The mount to the control arm basically replaces the spherical pictured above, which is just screwed to the shaft like every other coilover out there. So long as there isn't any bind, it should not see much in the way of lateral loading. My guess is since it's a fork shape and cast, a brittle batch can easily explain the failure. Not a huge fan of the design, but it's likely a compromise in suspension geometry. Honda did similar on their double-wishbone cars of the 90s:
