I have a 1987 honda fourtrax 250 2wd I Figure this much that a gear is stripped.. I am going to take it apart.. But the only ring and pinion gear I can find is for a 300 fourtrax 2wd.. I was just curious if it'd work in my 250's rear end
300 Fourtrax 2x4 ring pinion gear into 250 Fourtrax 2X4 Dif
So I was wondering if it's possible to use a 300 Ring pinion gear in a 250 Fourtrax Rear diff.. I'm going to replace the bearings and seals, but my 250 Fourtrax's rear end sounds way worse .. it only grinds doesn't move at all so I figured there's gonna be more than just replacing some bearings to it.. All i can find on ebay is a 300 Ring pinion gear.. its cheap.. I want to keep it that way .
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well this would be why I came here for help lol the 350 is a match up also? thats about 50 dollars savings.. I have all new bearings on the way for the 250.
either way posted an offer for the atc 250 rear end.. i didn't even think to look that direction for a differential.. thanks for the help there.. but you guys think ill still need a new axle?
i guess other question would be .. would the 250 atc rear end use the same bearings? since i got some on the way for my trx250 rear
well I don't know for sure that the ring gear is shot but something is deffinetly grinding and my dad told me the rear end was trashed (it was his he's letting me fix it up to use for the river .. so i get stuck fixing it so he can use it too lol) anyway I absolutely can't get the spindle nut off (the king nut..) it is so stripped out of this point I have no idea what will work .. I've pounded on a smaller sized socket and torqued the hell out of it with the impact and a breaker bar but I'm getting no where.. I'm guessing cutting the whole thing off would work (the threads n all and replace the whole axle) unless someone has a better suggestion?!You'll have to look at your axle and find out. If the splines are worn (not squared looking anymore) and starting to get sharp, or stripped, you'll need a replacement. You said the ring gear is shot, so ya gotta look at that axle too... those work together and if the axle isn't in nice shape it'll ruin the replacement rearend. You can use partzilla to compare part numbers and wheel bearings like I did for you above.either way posted an offer for the atc 250 rear end.. i didn't even think to look that direction for a differential.. thanks for the help there.. but you guys think ill still need a new axle?
EDIT:
Snoop around and you may find a better price... ask questions before you buy... don't buy any worn out junk.
Well I just found one within 2 seconds of looking on ebay > 87 Honda TXR 250 TRX250 Fourtrax rear back axle shaft | eBay looks like a good deal to me can't see if the splines are good tho.
worth a shot? the shipping puts it at 50 so idk.. at this point i shoulda bought the whole rear end assembly for 350 or less lolYeah the picture is fuzzy, but i still see some spline damage my 2 pennies ......
they're cheap china ones pretty sure .. i'll see if i even install them in the new diff i ordered.. may ride it out with whats in the new one if they are any good. the shaft I'm looking for is a 250 fourtrax rear end 85-87 like what my fourwheeler already has since the king nut won't come off.. the rear end diff i bought is the atc 250 rear end..You mentioned earlier that you have new wheel bearings for your rearend I think..? Are they OEM? If not, then they are most likely china junk. Whether they are OEM or aftermarket branded, you'll need to pop the rubber seals off from them and pack some high quality grease in each of them. Bearings nowadays are shipped out by the manufacturers with insufficient grease in them... china made bearings may only have a trace of yak fat in them... wash those out good in solvent and blow them dry, then pack them with high quality grease.
Be careful taking those rubber seals off... use a very small and narrow flat blade screwdriver to begin to pry it out on the outer diameter of the seal only. Never poke anything under the seal lip on the inner diameter of the seals cause they are thin and fragile and will be ruined if you try. If a seal gets bent a little when you are popping it off, flatten it back carefully in your fingers before walking them back in place by squeezing the outer diameter (and sliding your fingers along) of those seals between your fingers carefully.
You'll get decent bearing life by repacking... and you'll be buying them again if you don't.
I ordered my new axle for 87 250 fourtrax.. hope everything goes well.. thanks for suggestions (If i do use the new bearings like i should.. lol i'll try what you said about greasing them.) Thanks for all the help! I'm sure i'll be back with some other issues.. lol got a new starter to put in and such.. she's old n rough but it'll be a good machine again..Sounds good, have fun with it!they're cheap china ones pretty sure .. i'll see if i even install them in the new diff i ordered.. may ride it out with whats in the new one if they are any good. the shaft I'm looking for is a 250 fourtrax rear end 85-87 like what my fourwheeler already has since the king nut won't come off.. the rear end diff i bought is the atc 250 rear end..
Any one know if there is suppose to be a spring with the drive shaft when it comes out? or did I knock something free from the transmission yoke??
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