Changing fluids in rear end.

[BB Cruising]

Could use some help in changing out the fluids in the rear end of my 2012 CSC conversion. I recently purchased bike but have not idea if/when the fluids were changed out. Location and helpful tips are appreciated.

 

[Marc H]

https://img1.wsimg.com/blobby/go/196ab735-e9c7-46e6-bb49-a914633cbdf3/downloads/CSC%20Trike%20Owners%20Manual%20-%202017.pdf?ver=1712954679815

Page 23.
You will probably just have the right side of the pic.
Some have used a long clear hose ran through the wheel to refill.
https://triketalk.com/threads/my-method-for-refilling-gear-oil.63966/

 

[Papa Zook]

CSC VIPER/COBRA Owners Manual

 

[pwhoever]

Just an fyi, if you can see where drive shaft connects to the differential, it's worth a good look. If it's pretty gunked up, there is a good chance your pinion seal is leaking and needs to be replaced. It happened to me and I didn't notice it because the gravel pan hid most of the problem. Of course I had my conversion done in 2016 and didn't notice it until about 6 years later after warranty had expired. A buddy of mine who had it happen to him pointed it out to me. It was a bit of an experience fixing it but I got it done.

Here is a thread of my experience:

CSC Pinion Repair