Looking at the information, you are correct, but the listing for the springs, also on the Polaris website, are 250 and 900. The 900 are used for the bucket/fork attachment. The shock part numbers are also different, you will need to do a parts comparison to see if it will work.i'm guessing it's for the Brutus with the forks and bucket.
I did not click on them, I just read the text.when I clicked on the 900's on fixmytoys it showed up as 700's in the check out so I just went with the lowest numbers to be safe. My friend that has a Brutus is going to take some pictures of his bike for me, but he says his Brutus is the same frame as the xp900.
You may already know this, on the 900# lb spring, basically it takes 900lbs to compress the spring 1 inch, 1800lbs to compress the spring 2 inches etc. it looks to be a progressive rate spring instead of linear, which will help soften the ride a little.I just went to the Polaris site and saw that it's a 900# spring. the plow is 400 lbs so it might be just fine.
King shocks has a nice variety of different rate springs.I'm going to bump this old thread since winter is coming around again, and I have some info to add.
The Brutus HD (with the hydraulic lift arm on the front) does use an extremely stiff spring on the front. The installed spring height is the same as a 900, but the shocks are shorter. You do not want to put these springs on a Ranger unless you want a seriously rough ride. Even with all the added weight of the Brutus and the adjusters on the lowest setting, they ride fully extended. It takes a serious amount of weight to get them to move even slightly. You won't get them to move by pushing down on the front end. I put Ranger 900 shocks and springs on my Brutus. The Ranger shocks are roughly 2" longer overall, but the ride height is the same. I plan to get a plow and I'd like to get some heavier springs, but there's no way I'm going back to the stock Brutus HD springs. I think I'm going to try the Brutus rear springs up front. Here's a list of part numbers and weights from my notes.
Brutus HD front 900#
Brutus Base front 250#
Brutus rear 7043750-458 350#
Ranger 900 front 7043756-458 #225
Ranger 900 rear 7043754-458 240#
Ranger 900 rear 7043937-458 225#
Ranger 900 crew front 7044020-458 190-280#
View attachment 14194
That is a Ranger 900 shock/spring in the upper part of the picture and a Brutus HD on bottom.Subscribed, just in case.
The pic in post #11, serious size difference in those 2 springs, visually. The girth on the lower spring is stout for sure. Is that the Brutus front spring?