87 lt 250 quadrunner universals keep going out

[yamaha225]

87 lt 250 rear universals keep going out on the right side . I mean brand new ones in 100 feet or so and the yokes just snap. Never saw anything like it the bearings have been replaced and

don't see any binding anywhere. Dad has had this quad for at least 7 years no problems with it before. Original tire sizes are on it when he got it . They are the same as the 87 quad we have I assume they are the same as the 89. He used it for plowing snow I don't think it happened while plowing only just him on the quad driving slow after a new one was put in and bang just snaps the ear off the yoke!! He as put on 6 Yokes so FAR determined to figure this out. We jacked it up and turned it and didn't see anything different than the 87. Any suggestions would be helpful.

Thanks

yamaha225

[Tim-ANC]

First you should use OEM axles. After market bearings dont hold up. Ebay usually has them from a part out.

Do have the yokes synchronized correctly per the attached?

[yamaha225]

Thank you Tim, yes we synchronized the universals I have to check if they were oem or not. thanks for the quick response.

yamaha225