KJL

I actually did this a few years ago to my 96 and now want to to do it for my 95 ZR1. Funny thing is I forgot how I did it. What side is the plug on? What size is hex wrench does it take? What is best way to access plug? If I recall I had the car up on ramps and jacked the rear of the car up and placed on stands. If I recall if was a real pain to get to.

I have a vacuum pump and all the tools at least.

LT4 F45

It is on the passenger side and not that bad to get to...

Glenno

What is the correct limit slip fluid to use? Brand, weight, additives, etc?

WVZR-1

That debate happens pretty frequently and is a "personal choice"!

FSM specifies I believe 80W-90 GL5 and GM additive. Lubricants have improved through the years and you can consider the FSM as I guess a "minimum" spec. The debate can be likely a couple pages. I've always used the GM fluids. Habit!

The original I still have is 1052271 and 1052358 for additive. Both I believe have recently changed part numbers.

KJL - you asked fill plug size - 3/8 hex I believe if original. You asked how? It will all come back to you!

Glenno

Thanks for the info.

Kevin Woods

Yep.....matter of personal choice......and I also use the GM fluid .

Takes all the 'guesswork' out of the equation .

KW

383vett

The size for mine was one big vicegrip.

Glenno

Does the GM type fluid come with the slip additive already in it or do you purchase two products and mix them? Thanks

WVZR-1

Use the part #'s in my post -- additive is a seperate purchase (*you need just 1)

*people mention using 2 if they have problems - I don't know that actually helps.

ex-x-fire

Get yourself a long 3/8 wrench & a 3/8 allen wrench, cut the allen wrench to make a bit about 1.5" long. The have the bit welded to the 3/8 wrench.

KJL

Thanks for the feed back, I believe I have an allen 3/8" socket already, I guess I will need to remove the passenger side rear wheel and jack the car up access.

KJL

I have Mobil 1 75W90 Synthetic, will this work? I think I read in a thread that this was ok to use.

LT4 F45

I use Amsoil 75W90 no additive
Work great but right after the change i had to make 8's figure in a empty parking lot to get the fluid to the clutch in the diff...

DAVECAD2.0

Or, or, you could just buy one. They come in long and short hex lenghts. About $10.00 for a cheapo and about $25.00 for Snap-On.

MTCW

dizwiz24

Someone once recommended eith lucas 75w-90 or 75w-140

No additive reqd. I use 75w-90.