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Discussion Starter #1
So i recently bought an atv and one of the problems were that the back tires were both locked up, how would i fix this problem, i cant tell if both back wheels are locked up or just 1 but ill check and post it here
 

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So i recently bought an atv and one of the problems were that the back tires were both locked up, how would i fix this problem, i cant tell if both back wheels are locked up or just 1 but ill check and post it here
If you jack it up with all four wheels off the ground, can you spin the front tires???
 

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Could be as simple as the rear brake shoes rusted to the drum , the brake cam frozen and holding tension on the shoes , the rear diff maybe locked up from bearing failure , the axle bearing in the brake backing plate maybe be frozen
 

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If you jack it up with all four wheels off the ground, can you spin the front tires???
Just curious, the OP never mentioned if this 300 is 2wd, or 4 and his other post was about front brakes.
 

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Whatever the issue, diff, bearing failure or sticky brakes Neither of the rear wheels will turn, the axle is a solid through shaft with no open diff. Start with the easiest, brakes. Let us know how you get on.
 

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If you jack it up with all four wheels off the ground, can you spin the front tires???
Just curious, the OP never mentioned if this 300 is 2wd, or 4 and his other post was about front brakes.
No, he did not mention if 2wd or 4wd. This is why I asked about being able to spin the tires. If he had just the back jacked up, trying to spin the tires, and it's 4wd then the tires would not spin. It could be that simple. Correct?
Since he did not post if 2wd or 4wd I thought maybe he didn't know what he had. At 1:00 a.m. I was going for the simple approach. LOL

I did not see his other post about the front brakes.
 

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I thought maybe he didn't know what he had
Yep^^ my thought to.

Um, maybe you should go have a look @ that thread, don't tell i gave a like for nothing!! :devil
 

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Yep, one and the same, lol, but regardless your still not off the hook because I don't think ??that contest issue was ever settled, and I believe fish had specific details.
 

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Yep, one and the same, lol, but regardless your still not off the hook because I don't think ??that contest issue was ever settled, and I believe fish had specific details.
I have a feeling yall will never let me off that hook. There was a time when I could do those Daisy Duke's proud but that boat has left the dock :) I put a new Timney trigger in my AR so maybe I'll have a dead hog soon to throw on the rack. :) That's the only thrill I can offer @fishfiles.
 

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Discussion Starter #11
Sorry for not responding but its a 2wd and it has drum brake on the front. I got the front to spin but only the rear is locked up. I tried to drain the fluid in the drum brake at the back but whenni tried to loosen the drain bolt the head ripped off and i still havnt tried to get the bolt off but ill try your guys suggestions. Thanks
 

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Discussion Starter #12
So i put up the back wheels and it seems like the side with the drum brake will turn but it is hard to turn and the left side with the diff or whatever that thing is is completely frozen. And the gear oil was like sludge. How would i drain out the gear oil i dont find any drain bolts. And for the side with the drum brakes i dont think the shoes and rusted to the drum because when i press on the back brake the wheels is unable to turn. What should i do here. Heres some pictures.


https://ibb.co/nfPGS3X

https://ibb.co/T2ZxHLT

https://ibb.co/9r39yXd

https://ibb.co/x89jvcy
 

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Discussion Starter #13
Oh and i forgot to mention but is the hub supposed to seperate from the axle because it has dirt in there and i want to clean it
 

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Sorry for not responding but its a 2wd and it has drum brake on the front. I got the front to spin but only the rear is locked up. I tried to drain the fluid in the drum brake at the back but whenni tried to loosen the drain bolt the head ripped off and i still havnt tried to get the bolt off but ill try your guys suggestions. Thanks
Thanks for the follow up! You're in the right place to get some great advice about fixing your bike. I do not include myself when I say there are experts here.

Start by using PB Blaster and spraying down all the nuts and bolts you can reach on those back tires and brake parts. Let it sit a day and spray it again. You goal is to get some of the gunk and rust to break loose so you have a better chance of things not breaking.

**Obviously, you posted pics and responses while I was writing this post. Sorry for being so slow. LOL

Make sure you're using the right tools for the job. At this point, don't use an impact driver. It's guaranteed to strip and/or break rusty bolts. You have to work slowly and carefully with the correct sized metric set of sockets and wrenches. Don't try to use non-metric tools.

As @SamUK said, check the rear breaks. If you have trouble removing the drums, don't attempt to pry them off. They are very expensive to replace. Come back here and ask for help.

As @retro said, you need a service manual! It will make repairs so much easier.

Those are all my helpful hints. Good luck and please keep us posted! Post pictures if you can.
 

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Discussion Starter #15
Yeah so i removed every bolt except 1 because the head was torn off 1 bolt and it seems like it was the previous owner trying to do the same thing i was. There are bends from the previous owner trying to take off the cover and i dont want to damage the cover any more further. How do i take it off
 

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So i put up the back wheels and it seems like the side with the drum brake will turn but it is hard to turn and the left side with the diff or whatever that thing is is completely frozen. And the gear oil was like sludge. How would i drain out the gear oil i dont find any drain bolts. And for the side with the drum brakes i dont think the shoes and rusted to the drum because when i press on the back brake the wheels is unable to turn. What should i do here. Heres some pictures.


https://ibb.co/nfPGS3X

https://ibb.co/T2ZxHLT

https://ibb.co/9r39yXd

https://ibb.co/x89jvcy
Please try the pics again. Post them in your post, not an external link. Just drag and drop to the box below the text box. If you don't see this box, change to Full Classic View and you'll see it.

I viewed your pics. Wow, a bit of a mess. That is the drain bolt in your pic https://ibb.co/T2ZxHLT. However, it's looks like somebody has damaged it so it may be difficult to remove.

Even though your brake is working to some degree the brakes and other brake parts still have to be inspected so the drum has to come off. There is a "cam" that rotates when you apply the brake. It is most likely full of crude and rust.
Also, it looks like somebody beat on the end of that axle with a hammer. Wrong thing to do. I'm glad you were able to get the castle nut off.

That's all the advice I will offer to this point. Here is a link to the service manual and it explains and shows what else you'll need to do.
https://drive.google.com/drive/folders/1xPtIRTon47rnmYmqflFS5d8LqLeuZlql

I'm sure others will chime in.
 

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Discussion Starter #17
So i put up the back wheels and it seems like the side with the drum brake will turn but it is hard to turn and the left side with the diff or whatever that thing is is completely frozen. And the gear oil was like sludge. How would i drain out the gear oil i dont find any drain bolts. And for the side with the drum brakes i dont think the shoes and rusted to the drum because when i press on the back brake the wheels is unable to turn. What should i do here. Heres some pictures.


https://ibb.co/nfPGS3X

https://ibb.co/T2ZxHLT

https://ibb.co/9r39yXd

https://ibb.co/x89jvcy
Please try the pics again. Post them in your post, not an external link. Just drag and drop to the box below the text box. If you don't see this box, change to Full Classic View and you'll see it.

I viewed your pics. Wow, a bit of a mess. That is the drain bolt in your pic https://ibb.co/T2ZxHLT. However, it's looks like somebody has damaged it so it may be difficult to remove.

Even though your brake is working to some degree the brakes and other brake parts still have to be inspected so the drum has to come off. There is a "cam" that rotates when you apply the brake. It is most likely full of crude and rust.
Also, it looks like somebody beat on the end of that axle with a hammer. Wrong thing to do. I'm glad you were able to get the castle nut off.

That's all the advice I will offer to this point. Here is a link to the service manual and it explains and shows what else you'll need to do.
https://drive.google.com/drive/folders/1xPtIRTon47rnmYmqflFS5d8LqLeuZlql

I'm sure others will chime in.
Thank you so much for your help. I have 1 more question how would i drain the rest of the fluid thats left in there, and that bolt was really easy to take off the previous owner left it barely screwed in but ill get a new bolt for that.
 

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Discussion Starter #18
So i put up the back wheels and it seems like the side with the drum brake will turn but it is hard to turn and the left side with the diff or whatever that thing is is completely frozen. And the gear oil was like sludge. How would i drain out the gear oil i dont find any drain bolts. And for the side with the drum brakes i dont think the shoes and rusted to the drum because when i press on the back brake the wheels is unable to turn. What should i do here. Heres some pictures.


https://ibb.co/nfPGS3X

https://ibb.co/T2ZxHLT

https://ibb.co/9r39yXd

https://ibb.co/x89jvcy
Please try the pics again. Post them in your post, not an external link. Just drag and drop to the box below the text box. If you don't see this box, change to Full Classic View and you'll see it.

I viewed your pics. Wow, a bit of a mess. That is the drain bolt in your pic https://ibb.co/T2ZxHLT. However, it's looks like somebody has damaged it so it may be difficult to remove.

Even though your brake is working to some degree the brakes and other brake parts still have to be inspected so the drum has to come off. There is a "cam" that rotates when you apply the brake. It is most likely full of crude and rust.
Also, it looks like somebody beat on the end of that axle with a hammer. Wrong thing to do. I'm glad you were able to get the castle nut off.

That's all the advice I will offer to this point. Here is a link to the service manual and it explains and shows what else you'll need to do.
https://drive.google.com/drive/folders/1xPtIRTon47rnmYmqflFS5d8LqLeuZlql

I'm sure others will chime in.
OH sorry your talking about the smaller hole down bellow. ill try tomorrow to take it off. thanks for your help
 

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Yeah so i removed every bolt except 1 because the head was torn off 1 bolt and it seems like it was the previous owner trying to do the same thing i was. There are bends from the previous owner trying to take off the cover and i dont want to damage the cover any more further. How do i take it off
Carefully! LOL. Seriously, look at the manual and it shows how to inserts a small pry tool into the slots between the drum and back brake plate. HOWEVER, the plate is easily bent and ruined. Did I tell you it's expensive to replace! :(

The manual will show, also, how to be sure the brake pads are retracted from the drum. Sounds like yours are enough to get the drum off.
I'm not familiar with all the details of your model, so BE SURE to check the manual for the steps to take off the drum. Some ATV's have a type of "seal" in front of the drum that must be removed or you'll never get the hub off. Some times you can't see it, but it's there.
You should be able to grab the drum with both hands and pull it straight off but I doubt that will work in your case.
Try a rubber mallet and tap all around the edge of the drum - on the top surface, not the edge. Tap it, then try to twist it a little, repeat over and over.
If push comes to shove you may have to use a "hub puller" to get it off.

I'm sure the guys will chime in and give their advice.
 

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what I am getting out of it , you say you can turn the brake side wheel and not the left side wheel , that would make me think you have a second problem , the both wheels are mounted on hubs that are splined to the axle , so neither one should turn , sounds like the hub spline is stripped out , but that is a secondary problem at this point , if so the axle will have to be replaced with the hub , some people weld them up and send it ----- the drum can be very hard to come off , and sometimes they are not going to come off without destroying it , there are splines on the drum to the axle and they get very rusted up , if your splines of the hub are stripped , then you don't have to worry about damaging the axle by hitting on it , the axle also has splines that mate with the ring gear , it gets frozen there bad also , if you are not very mechanically inclined and have tools , you might to just find another rear end to stick under it , cause it can get pretty involved
 
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