GEAR BOX OIL HELP ASAP PLEASE X

[(NAS) starlet ep82]

http://www.ebay.co.uk/itm/Millers-Oils-CRX-LS-80w-90-NT-Competition-Semi-Synthetic-Gear-Oil-1L-/400552264600?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item5d42c68398

previous owner used semi synthetic LS90 MILLERS gear oil

the one above on the link is LS-80/90 is this the same as the LS90 oil ? as its closest i could find

recently i changed my gearbox oil on mates car & his box is soo loudon full locks its so unbelievably loud/clunks like somethings about to break but as soon as u turn either side full lock with clutch down thres no noise at all

CUSCO LSD previous owner used LS90 semi synthetic gear oil, where would i get this from?? or do i use the one on the link above reli need help ASAP as i have used some cheap oil called ''Granville LS 80/90'' atmo.. my diff was fine before changing the oil

cheers

[Ep'd]

Thought this was the steering rack causing the clunk?

[AdamB]

I've told you about 3 times over on TGGT.

[(NAS) starlet ep82]

I've told you about 3 times over on TGGT.

yeah i know bud but not sure which grade to use as theres loads of different oneson that page,but i've managed to speak to someone local &ordered some so thanks for your help guys will let u know how i get on