Cross joint failed, damaged drive shaft ?

Hi,

My cross joint failed a couple days ago on my 1985 xj750 Maxim X and I decided to do the repair myself.
While pulling apart the drive shaft, I noticed some slack. Since it's my first time taking apart this part of my bike, I was wondering if that's normal or if that's the result of the u joint exploding.

Drive shaft seems to be working fine but I'd like your input.


Thanks !

 

This looks normal you have to have movement of the shaft even tough it pasees thru tube.

 

pull it out and look at the splines.

 

that's normal, your good

 

+1 - all normal. There is some play. Don't forget, the swing arm moves up and down, the u-joint pivots, and the back end of the shaft needs to have some allowance, too.

Replace the cross-joint, and you'll be good to go.

 

New grease was what I was getting at. The splines need grease. Both ends. High moly content.

 

that, too-----

 

Great ! Thank you all for your recommendations.
I'll put the bike back together later this week; I soon as I receive my new joint from eBay.

 

I'll assume that you got a used u-joint. Inspect it carefully. There should be no slop, and it should move smoothly in every direction.

 

i put the needle point on my grease gun and poked it through the rubber boots on mine.
got some in there, whether it went where it will do any good i don't know, but i tried

 

I installed the new joint, everything looks fine.
I did an 200km ride yesterday and she runs smooth !

Thanks guys !

 

Did you find an actual new one? My cross just went out and cannot find new...if anybody can help that would be awesome

 

I have an 85 xj700x maximX. In need of cross final drive. Literally just went out. Anybody know of anywhere?

Thanks for your time

 

You mean the U-joint (“cross-joint”)?
You can get them from Len at xj4ever.....
info@xj4ever.com to order.

it’s the same one for xj700/700X/750/X/900rk