Wondering if anyone could give me some advice.
Are there any recommendations on what oil I should run in my "new" 99 chillcast dog box with quaife diff?

Cheers
Rob

If it is a dogbox without brass synchros you can use a GL-5 oil. I used Redline Shockproof. The regular is pretty heavy , you can use that or the lightweight depending on your temperature and intended usage.