99 Z28 Which type of Limited Slip

**thende2617** · 10-23-2006, 05:03 PM

As a new owner of a 99 Z28 M6 with a 3:42 gear, what type is it?

The older Clutch type or the new Torsen, reason is, do I need to add the GM limited slip (I have it), also have Mobil 1.

slight noise from rear that increases in pitch as speed increases, but seems solid. I do notice it changes (lowers frequency) when I pull the ebrake handle a bit (Might change load on wheel bearing or ebrake issue)???

Thanks new to this year Camaro.

Tim

**INMY01TA** · 10-23-2006, 07:55 PM

You've got a Torsen diff. No need for the additive but I always threw it in there anyway. I'd use a dino 80-90 gear oil.

**2001NBMZ28** · 10-24-2006, 03:05 PM

I'd use it, bet your owners manual says to with a complete drain and refill for LSD diffs - mine does. Some gear oils say it's included in their product or not needed, but I use it anyway.

**thende2617** · 10-25-2006, 07:17 AM

Thanks for the input, also I bought the gasket, is it installed dry or with sealant?

**2001NBMZ28** · 10-25-2006, 10:21 AM

Good question, when I put my TA Performance cover on I just used RTV only and it's been fine. Just looked it up in my '01 helms and it says "Install a new rear axle housing cover gasket. Install the rear axle housing cover. Install the park brake cable guides...Tighten the rear axle housing cover bolts in a cross pattern to 22 lb ft." No mention of any sealant required, so I guess dry is fine.