Trail Boss Questions...

[RancherX]

I recently bought a Sierra Trail Boss that needs a wheel bearing. Does anybody have a part number for that? Also, is it set up like an older Attex bearing system or not as simple? The bearing is so bad that there is an inch of play, so I'd assume I need a seal too?

Also, it has a Kohler 300cc engine, and has a hard time doing a 360 even on grass, and it's not due to the trannys. Should I have more psi in the center tires? What PSI should be run in the others? Thanks for your help!

[L.D.Bruce]

I'm in the same place as you with many questions but no answers coming. The Guys that know about the Trail Boss's have not been here for a while

[thebuggyman1]

I'm in the same place as you with many questions but no answers coming. The Guys that know about the Trail Boss's have not been here for a while

I doubt the problem is Trail Boss specific. IF the motor runs correctly, the problem is most likely in the clutches. First, rev the engine while watching the clutches. You should see the belt ride from the bottom of the engine clutch(primary) to the top, and also from the top of the transmission clutch (secondary) to the bottom. If it is moving correctly, read this: ATV and Snowmobile Belts - by Dayco

[RancherX]

Thanks for the responses, guys. I fixed the clutch problem with a quick adjustment. I'm still wondering what PSI I should be running in the tires? And is more in the center tires a good idea? Also, if anybody has a part number on the wheel bearing please let me know. Thanks!

[outhere99]

I don't know if you ever got an answer on the tire pressures, but my manual say 3-12psi. From what I can tell they should all be even. I would think it'd wander (a lot more) if the centers were higher.

BTW... I just got a trail boss. Any words of wisdom?

[thebuggyman1]

Run your tires with as little air pressure as you dare.....I like around 2 psi, but it varies from tire to tire, and with the rims you use. Run too little and you can de-bead the tires. Run too much and the ride will suck.
For the wheel bearings: Take a sample in to Motion Industries (or other bearing supplier) and they will tell you what it is. They will probably be a little more money than other sources (like Buffalo Bearing) but once you get the part # you can look for a cheaper source.

[jpswift1]

The Trail Boss has 18x9.5x8 Goodyear Terra Tires if I remember correctly. Those tires ride VERY hard since they're garden tractor tires. Like buggyman said, try airing them down and see if that softens the ride. As far as bearings go, call Buffalo Bearing and give them the dimensions on your old bearings. Tell them you're with 6X6World and they'll take good care of you since they do a lot of business with many members on the site. Their number is (716) 874-1720.

[Jeff t-boss]

Hi guys/gals? The part number for your bearing is 4816420, but being that these vehicles are obsolete, the number probably won't get you anywhere. Your best bet is to take the old bearing to a local machine shop or bearing distributor and have them cross the numbers on the bearings to a current match. Bearings Inc has outlets in Wisconsin, Ohio, and Washington. Just search Bearings Inc in your search engine. As far as a seal goes, the p/n is (CR) 470380, or SKF # 15005. That is the axle seal and not the seal between the axle and the tub. Hope this helps. And as far as tires goes, you folks are consistant in your posts about rough riding with the terra-terrain tires. I am running tubes in mine to run at the lowest PSI possible and it is still rough. The tires themselves are a very hard rubber, so no matter what PSI you try, it will be rough. I am looking into better/softer tires myself, but am gonna run these ones out first, as they are pretty new. I use my t-boss primarily for deer hunting/retrieval, so it really isn't an issue with me. The Terra-terrains really do work in the woods on Wisconsins frozen turf.

[charley]

I also run 5PSI in all 6 tires, any lower and the tire will slip on the wheel. Can you tell me what the drive belt length is or the belt number?