Can I use LS Bell Hammer concentrate in the transmission of my agricultural tractor, and also mix it with 90-weight oil in the rotary gear and chain case? What mixing ratio should I use?

Yes, LS Bell Hammer concentrate is suitable for tractor transmissions and other metal sliding components.
It forms a lubricating film that can help reduce gear engagement resistance and improve smoothness over time.

 Recommended mixing ratio: 5–10% of the total gear oil volume.
This same ratio applies to the rotary gear case and chain case as well.

 When adding, reduce the existing oil by the same amount first to avoid overfilling.
Normal operation will gradually form the protective film, improving shift feel and rotational smoothness during use.