ErnieT

The exact fluid levels are in the back of your owners manual. The shockproof is in 3 different grades....1. heavy 2. Light 3. Extra light

Get the light. 75/90 NS in the rear....Make sure its NS. There is a difference. Use 4oz. of the friction modifier mixed with the qt. of diff fluid.
Then get 4 qts of Shockproof light for the x-fer case and tranny. It will take two people. Loads of fun....

iodine23

iTrader: (1)

75W90 doesn't need the friction modifier, 75W90NS does. You can use Lightweight Shockproof in the transfer case. I did for a little while on my car.

Ferb

Maybe we're just reading what you said wrong, but Redline Shockproof doesn't come as 75w-90NS. That is one of the flavours of 'traditional' GL-5 gear lube.

Shockproof DOES come in the three types, and all are LSD compatible, so says Redline.

I guess how i read it is you suggesting purchase of a "Shockproof 75w-90NS" which isn't in the lineup.

ferb!

iodine23

iTrader: (1)

Actually they're not very compatible with LSD's (unless you use the friction modifier). Technically they are LSD compatible, but they're designed more with the racing diff in mind.

I ran lightweight in my rear diff and it popped and chattered in low speed, tight turning situations. If you're going to use shockproof in the rear diff on your street-driven Evo, you need to add about 4oz. of the limited slip additive. I discussed this with a tech at Redline and that was what he suggested to do.

ErnieT

Guys, read what I posted. I never said I put shockproof in the diff. I put Redline 75/90 NS with the friction modifier in the diff. I put the shockproof in the transfer case.

Shahul X

iTrader: (3)

so redline comes as a 75w90 and a 75w90 ns that needs a friction modifier.... whats the differance? and why wouldnt I just do the 75w90 w/o the modifier?

-shahul

93civEJ1

iTrader: (7)

i hear everyone say to just run the redline regular stuff 75w90 in both diffs, is this fine?? ill probably be buying some stuff this weekend.

Ferb

Well thats the rub. You can run the 75w-90 without much need for the modifier.

-- OR --

You can run the NS and 'tune' the diff. Add more modifier until the chattering goes away.

ferb!

Zeus

iTrader: (66)

Redline 75w-90 front and rear... no modifier, no chatter.

Shahul X

iTrader: (3)

oh, I just want somthing to help the diff and transfer since people are complaining about the transfer so much.....

I think I'll just do the 75w/90 redline

-Shahul

Shahul X

iTrader: (3)

okay, nevermind I ordered the shockproof (light) for the transfer and the 75 w90 for the rear diff

-Shahul