Diff and transmission oil

Decided to change tranny and diff fluids. Which transmission and differential oil would you guys recommend and to what level to top it up? If you also give me tip where to buy it that be great!

RedLine MT90 for tranny

RedLine 75W90 for diff

call PUR Auto, they have both 416 787 2886

http://www.nicoclub.com/FSM/240sx/91-94/MA.pdf

page 7, FSM specifies GL-4 75w90 for trans (ka24de) and GL-5 80w90 for diff…i use amsoil severe gear 75w90 as it claims to outperfrom the oem 80/90

Thx guys, and what’s the top up level - until it reache the plug or lower? How many liters do I need?