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Rear Lsd Not Acting Like It Should

BIT SUS
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BIT SUS Mentor

BIT SUS

Posted
Posted

hey all. Was hoping someone could provide any information on what the hell my diff is doing.

R33 GTR - non V-spec

Redline Heavyweight shockproof oil.

Rear diff, when one rear wheel gets slightly airborne, it spins, but under power in carparks, it skids...

what the??!!

I just wanna put power to the ground!

Nigel.

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R324DR Proficient

R324DR

Posted
Posted

Hi Nigel. From your post its hard to understand what the issue is, but it might just be the way you explained it. I recently put lightweight shock proof in my stock gtr diff and had issues. Basically when i was trying to corner or park the car, the rear of the car would shudder and the diff would feel like and open one. It felt like the oil wouldn't let the diff bind up. i put motul back in, and the problem cleared up instantly. Maybe drop the redline oil and try something else and see if it solves your problem.

MrStabby Grand Master

MrStabby

Posted
Posted
Hi Nigel. From your post its hard to understand what the issue is, but it might just be the way you explained it. I recently put lightweight shock proof in my stock gtr diff and had issues. Basically when i was trying to corner or park the car, the rear of the car would shudder and the diff would feel like and open one.

I thought shudder = tight diff, not loose one. I was told that shockproof will give you more shudder, but that's because it increases the friction between the plates like a tighter diff would have. Makes sense in that many use it to compensate for loose synchos as well.

Moodles2 Grand Master

Moodles2

Posted
Posted

Not supposed to use Shockproof in LSDs, it doesn't have the LSD additive.. I've heard of GTR LSDs locking up in low speed situations like around roundabouts with shockproof in them, I run Redline 75w90 gearoil in my rear factory LSD and don't have the issues you speak of.

some_cs_student Veteran

some_cs_student

Posted
Posted
Not supposed to use Shockproof in LSDs, it doesn't have the LSD additive.. I've heard of GTR LSDs locking up in low speed situations like around roundabouts with shockproof in them, I run Redline 75w90 gearoil in my rear factory LSD and don't have the issues you speak of.

+1. Wrong oil can make the diff shudder/tighter...

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