Originally Posted by GeneralDisorder

Nice! Yeah you won't regret the Motive 3.70 gears and the Holden VL Torsen. The exchange rates are excellent right now although it looks like the sellers have raised the prices to compensate for the exchange rate to a degree. IIRC, my diff with shipping was around $520 US.

And yeah - all you do is occasionally change the fluid. Mine lights both tires on command and not a peep out of it. With the Torsen I haven't had a single concern about my 9 bolt the last few years. It's always back there and reliable for me.

GD

Originally Posted by Chevy86 IROC-Z

Side by side.

Originally Posted by FAST LiFE

Are these the same unit as the Supa-F LSD and have you made contact with these vendors yet? Looking to try this out soon assuming these vendors are not locked down and are shipping.

Originally Posted by Chevy86 IROC-Z

same product, but different brand. Upon investigation, there is apparently a third brand that makes the same unit. But is far more expensive than these 2 that I posted.

Originally Posted by FAST LiFE

Thanks! Were you able to place an order and have it shipped out already? The more expensive unit, is that the Harrop Trutrac?

Originally Posted by Chevy86 IROC-Z

After getting the diff, I gotta look for either 3.27 or 3.45 ring and pinion set. I currently have 2.77 in my 9 bolt.

Originally Posted by red rock

You might want to check with 9bolt.com because they show a 2.77 as a 2 series carrier. The 2.92 and up gears requires a 3 series carrier. http://9bolt.com/gears.html

Originally Posted by Chevy86 IROC-Z

Not yet. I will get it very soon. But I'm opting for a different brand that is similar to the Torqueline brand.

Originally Posted by FAST LiFE

So you're going with the Mace Engineering Torsen? Have you been able to confirm with them that this will work in the 9 bolt? I'm looking to order a unit in the next few weeks.

Originally Posted by Chevy86 IROC-Z

yup. Mace confirmed.

Originally Posted by keykey

I just came back from the first test drive after installing an aftermarket "Torque Lock" Torsen (Helical Gear) LSD in my Borg Warner 9-bolt rear!

It began with me reading the 9-bolt facts thread, and some guy wrote that there was this company "Supa F Series Spares" in Australia that sells a Posi for a "VL" Holden Commodore that will fit the 9-bolt. I e-mailed them and they were sceptical about an australian made diff fitting an american car, so I sent another mail with photos that I took of my stock Borg Warner Separated Cone-LSD when I had it apart the last time. He then replied "it will fit". YES!

I ordered the diff for 495 Australian Dollars (approx 367 USD) + shipping. The total amount charge was about 527 US Dollars. Then the Swedish government wanted import tax and customs fee, so I paid approx 166 USD for that.

I also ordered new diff bearings from a local company, and a "SK SS10" Super Shim Kit from Rockauto because I had read somewhere that was what I needed. It was a USA Standard Gear part number USA55001, but the bag the kit came in said "Yukon Gear SKSS10". I had to replace the wheel bearings and seals too, as the seals were leaking since i last took the rear apart to replace my cones.

There was two problems that had to be solved to fit the diff. Number 1, that I knew of beforehand, and number 2 that I discovered myself.

1. The pinion teeth hit the case. You should machine the pinion to get clearance. I used and angle grinder to "machine" my pinion because I didn't want to remove it and have to do the "setup procedure".

2. The carrier bearing cups that are listed at parts vendors for a BW 9-bolt is LM102910. That's what I bought. The cups that were installed in the rear from the factory said LM102911, and were slightly wider.

The problem with the smaller cups was that you couldn't tap the spacers in place with the smaller bearing cups because the roller cage and carrier bearing seat were sticking out farther than the cup.
I eventually solved it by putting two of the shims between the spacer and the bearing cup, and a thick shim closest to the spacer so that it wouldn't get damaged as easily when tapping the spacer in place.

Here are some pics from the install!


The diff box, very anonymous. No mark, make or brand name anywhere. I still don't know which company that make these.




The diff as it looked just out of the box. It had corrosion protection on it.



Here I put the new diff beside the original Borg Warner Cone LSD to check if the ring gear seemed to be in the same place. It matched perfectly.



Here is a picture of the Yukon Gear SK SS10 Super Shim Kit. It consists of two 2-piece spacers that you fill up with shims to get the thickness you want. When put together they can be handled like a solid spacer (tapped in place between axle housing and side bearing cup). On the ziplock bag you see one 2-piece spacer to the right, and some shims to the left.



This is the modification you have to make to the Pinion so that it doesn't hit the new diff's barrel-shaped housing (that is fatter than the stock BW Cone diff). I used an angle grinder and removed material little by little until I could spin the diff freely when put in place with no ring gear on it.



This shows the old bearing cup LM102911, and the new bearing cup LM102910.



Here you can see the difference in width between the LM102910 (right) and the LM102911 (left) bearing cups. Note that I tried using the old larger bearing cups, but with them the new spacers were too thick to fit, even with only one shim in them.



Here is a picture of how I solved the problem with the new smaller bearing cups preventing me from tapping the last spacer in place.



Here is a picture of the new diff installed, side bearing preload and backlash set, caps torqued down.



And here, the photo you've all been waiting for. Does it work? Yes. It works.




So far everything seems good. I drove approx 20 miles tonight, did two burnouts and nothing has exploded yet. Cross your fingers for it staying that way!

Feel free to ask any questions about the install. As far as I know, I'm the first thirdgen owner to install an aftermarket diff in a 9-Bolt. At least I haven't found any thread about it anywhere when searching online! I'm really tired right now (its 12:19 AM in Sweden right now), but I was so excited after the test drive so I just had to post this!

Originally Posted by kenbob

I can send you the eBay 300 dollar link

Originally Posted by Drgnbld

How were you able to just buy one? When I click on the link it states must buy 50 or more.