I just bought this quad and want to change the diff and final drive. The manual says 80w gl4 but I cant find it anywhere local. Is there anything else I can use that I can find at a local auto store or walmart?

 

You should be able to find either 80s or 80-90w multigrade. GL4 doesn't contain as many EP additives as GL5 so if there are any brass or bronze components in the diff you must not use GL5. Googling it fetches up lots of brands of GL4 gear oil.

 

Thanks! I can find 80-90 but not just straight up 80.