Venom: H6 Gen2 Liberty GX

Venom · Post by **Venom** » Wed Mar 06, 2013 5:52 pm

KAAZ front LSD does not fit in the dual range gearbox. Trying to find out if a Cusco will fit.

Jeff · Post by **Jeff** » Wed Mar 06, 2013 6:42 pm

Rhys i have had cusco front LSD diffs and would strongly recommend you dont go there.They bang and clang and jump , hop skip. They are in my opinion not suitable for road use. I replaced a Cusco front LSD in my Brumby [ gearbox is now in my Gen 3 Outback]with an STi front diff [ i believe they are Torsen] and havn't looked back. the car drives like car and if and when you need a front LSD the torsen can be further engaged by taping your brake pedal to simulate load. I don't know about the OBX ones but if they are half as good as an STi torsen then that is the way to go.

YouTube · Post by **El_Freddo** » Wed Mar 06, 2013 8:20 pm

Venom wrote:KAAZ front LSD does not fit in the dual range gearbox. Trying to find out if a Cusco will fit.

So what are you doing with the KAAZ front LSD? That's a lot of money to outlay to find out it doesn't fit

Cheers

Bennie

Venom · Post by **Venom** » Thu Mar 07, 2013 7:42 am

Jeff wrote:Rhys i have had cusco front LSD diffs and would strongly recommend you dont go there.They bang and clang and jump , hop skip. They are in my opinion not suitable for road use. I replaced a Cusco front LSD in my Brumby [ gearbox is now in my Gen 3 Outback]with an STi front diff [ i believe they are Torsen] and havn't looked back. the car drives like car and if and when you need a front LSD the torsen can be further engaged by taping your brake pedal to simulate load. I don't know about the OBX ones but if they are half as good as an STi torsen then that is the way to go.

I am considering it. The helical types, and i've seen this mentioned more than once:

"...works well as long as the low torque wheel still has some grip and some available torque, but if you lift a wheel in a fast turn it will immediately revert to zero torque all around like an open differential"

I've already had a Torsen in my car and i wasn't entirely happy with it off road. I didn't know the brake tapping trick though, but i'd prefer to prevent the wheel spin in the first place.

Did you have a 2 way, 1.5 or 1 way? I'm looking at going with a 1 way. Did you buy it new, or second hand? There's a pretty detailed break in procedure for the KAAZ diffs, and if not broken in properly it states they will be noisy. I'm guessing the Cusco would be similar?

I came accross this guy from RPW in Perth mentioning major noise issues with Cusco's put in Ralliart cars. :
http://www.aussiemagna.com/forums/showt ... hp?t=25752

"Best of all after trying all the exotic synthetic oils incl redline, fuch's etc we ended up going back to woudl you beleive, a Mineral Grade LSD 90 weight straight oil with the addition of the one bottle of Redline friction modifier."

El_Freddo wrote:So what are you doing with the KAAZ front LSD? That's a lot of money to outlay to find out it doesn't fit

Cheers

Bennie

Paper weight?

I suppose ads on Rslib and the various wrx forums. I'm sure it will sell eventually.

The money isn't so much an issue as i need an alternative ASAP. I need an LSD to get to the builder this week, because he's got another gearbox to build and install next week... and it's already Thursday.

Venom · Post by **Venom** » Mon Mar 11, 2013 3:47 pm

Cusco 1 way type RS LSD is on it's way from Japan. Good price too, less than the KAAZ's. RS type is supposed to be silent, or damn close to it.

Delayed the gearbox by a good 2 weeks though.

taza · Post by **taza** » Mon Mar 11, 2013 10:56 pm

Keeping a close eye on your thread make, I'll be going down the LSD route myself at the end of the year..
I can see why your wanting to make your vehicle a slow climbing rig.. when you use speed you break things. I know all too well! lol

YouTube · Post by **El_Freddo** » Wed Mar 13, 2013 5:24 pm

taza wrote:I can see why your wanting to make your vehicle a slow climbing rig.. when you use speed you break things. I know all too well! lol

Yet you're only acknowledging this now??

I'm looking forward to getting out there again with the lib Rhys - Just that I don' know when this will be...

Cheers

Bennie

RSR 555 · Post by **RSR 555** » Thu Mar 14, 2013 4:56 pm

taza wrote:Keeping a close eye on your thread make, I'll be going down the LSD route myself at the end of the year..
I can see why your wanting to make your vehicle a slow climbing rig.. when you use speed you break things. I know all too well! lol

Bwahahahahahahahahahahaha... someone call a doctor.. I can't breathe

RSR 555 · Post by **RSR 555** » Thu Mar 14, 2013 4:57 pm

Venom wrote:Cusco 1 way type RS LSD is on it's way from Japan. Good price too, less than the KAAZ's. RS type is supposed to be silent, or damn close to it.

Delayed the gearbox by a good 2 weeks though.

Worth the wait. Should be very nice

NachaLuva · Post by **NachaLuva** » Tue Apr 09, 2013 12:32 am

Any news on the diff? Bet you're getting pretty sick of waiting as the 4WD are about to close in a month

Venom · Post by **Venom** » Tue Apr 09, 2013 8:24 am

Cusco arrived easter Friday.

Latest problem is the DCCD does not mate up with the output shaft? in my gearbox. The DCCD spline is different to what is in my gearbox. Maybe because they're different phases? NFI. Thought it was a simple procedure to fit.

Over it.

hydrowill · Post by **hydrowill** » Tue Apr 09, 2013 2:50 pm

The same problem with my Dccd!!! Looking closely I think my gen 3 output shaft can be machined slightly to accommodate a bearing and therefore hold the Dccd. Completely different to the forry box. Just have to save some funds to get someone to check it out.

Venom · Post by **Venom** » Tue Apr 09, 2013 3:38 pm

Huh that sucks mate. Not sure what my approach is going to be. I'm obviously not doing the work myself so to be honest i don't exactly understand what the problem is, which makes it difficult to know what to do about it. In hindsight perhaps a complete transfer/center diff housing thing would have been better, but there is/was nothing like that available. Or maybe a complete DCCD gearbox. Just not sure what to do, so I've been ignoring the problem for a good 3 weeks.

Going back to an L series is starting to look appealing. Factory center lock on the fly, too easy.

hydrowill · Post by **hydrowill** » Tue Apr 09, 2013 5:38 pm

Yeah I've been ignoring the same issue for a good 4 months hah. Yeah I think the easy way to go would have been the whole rear transfer case, bolt in mod.
The output shaft that I have from my 99 lib has the splines in the right spot but needs a bearing surface near the bearing at the back of the case. I think that's the easiest way out of this.

I guess lesson learned and if anyone is looking to do the dccd mod you need the whole rear transfer case! Better still get the whole V4 STI box and get the good front lsd with it.

Have considered the L series center but really don't like the car being FWD especially with the H6. Maybe with the vortex AWD center but then I'd worry about breaking it :/

tambox · Post by **tambox** » Tue Apr 09, 2013 5:56 pm

Has anybody broken a Vortex lockable centre diff?
Not worn it out, but actually broken part of it.

hydrowill · Post by **hydrowill** » Tue Apr 09, 2013 6:38 pm

Wouldn't have a clue? How many have been tested vigorously behind a H6? Eventually planning a big trip around aus and would much prefer piece of mind of a DCCD.

Have never come close to tracking one down either

NachaLuva · Post by **NachaLuva** » Tue Apr 09, 2013 6:56 pm

Thats a bugger Venom, I hope you find a solution for it. Rick doesnt have any ideas?

tambox · Post by **tambox** » Tue Apr 09, 2013 7:06 pm

I have seen a few worn ones, but never a broken one, just trying find what breaks. I have an engineering place that can build a much stronger outer shell, the bit that normally wears. But not cheap, just looking at the viability of fixing them.

Venom · Post by **Venom** » Mon May 20, 2013 7:34 am

Gearbox is back in the car. I ended up finding the DCCD output shafts on gumtree, very lucky. Cusco is fitted up front, KAAZ in the rear and the DCCD in the middle. DCCDPro is wired up, although the switches aren't hard mounted in the center console yet. Still need to put the interior back together, replace one of the driveshafts and tidy up some wiring. Unfortunately I didn't end up finishing the car before I had to fly back to work. Hopefully I will be breaking in the diffs in 3 weeks.

hydrowill · Post by **hydrowill** » Mon May 20, 2013 9:57 pm

Didn't find more than one output shaft did you?