Rescue Ranger

iTrader: (10)

Hey guys,

At the Auto-X today, I was doing a ton of 1-leggers in the tight S-turns, which got me thinking, "did I put in too much limited slip additive?"

After a search, am I reading that I shouldn't have any of that stuff in at all? I put in 75w90 Valvoline Synthetic w/ a tube of LSD additive.

Rescue Ranger

iTrader: (10)

I found this in the search, but want to know if this 1-legging in the tight S-turns is a result of the fluid directly, or just something these cars will do in a tight turn... that is one-leg burnouts for like 30ft trying to maintain exit speed.

https://ls1tech.com/forums/gears-axles/603182-pics-differential.html

jimmyblue

iTrader: (11)

No, it's a result of a low max torque split limit on the
stock Torsen, unequal tire loads and a tire with a large
difference between stuck and sliding friction. I suspect
the bias split degrades with wear. I found a lot of
shavings in mine at, what, 20Kmiles or so?

I would change it out for straight heavy nonsynthetic
gear oil, hold the mayo.

Rescue Ranger

iTrader: (10)

Thanks for your response, I <3 mayo though recently switched to Miracle whip light because I love mayo-like substances so much its probably not too healthy.

..anyways, if I have 75w90, are you saying move to a 80w90, or thicker without the LSD additive?

Thanks again Jimmy.

beaSSt

I change the fluid in my Torsen every year when I bring the car out of winter storage. Last year when I installed my Strange 3:73 I went with dino lube based on Strange's recommendation. And for the first time for an experiment I didn't use the GM anti-slip additive.

I ended up getting the old rusty screw sound out of my Torsen. So when I got the car out this year I included the additive with the dino lube and the noise is pretty much gone.

This convinced me to keep the additive in my Torsen from now on.

Rescue Ranger

iTrader: (10)

Thanks for your note. I may go w/ dino gear oil and see if I get that sound. According to a couple searches that link Torsen's site, the rusty screw sound isn't harmful?

I guess if I get the sound, but one-leg less, that'll be an acceptable trade-off for me, otherwise I'll throw in some additive.

Rescue Ranger

iTrader: (10)

[QUOTE=jimmyblue]No, it's a result of a low max torque split limit on the
stock Torsen, unequal tire loads and a tire with a large
difference between stuck and sliding friction.QUOTE]

Jimmy,

Is there an upgraded LSD available that utilizes the stock 10 bolt?

turbotko

[QUOTE=Rescue Ranger]
Yep, detroit tru-trac. You will have a much stronger diff and no more 1 wheel peels. It's also only $350 from a huge mail order distributor that rhymes with "love it".