The ***ALL NEW*** AUSubaru.com.au Forums

How do you know this? You might just have the VTD rear end bolted onto the original box. Just a hunch and some detective work. I have since located a receipt for an exchange transmission tucked away in the back of the owners manual so have good reason to believe the auto was swapped 6 years ago. Th...

The DutyC solenoids operate differently in these boxes but look the same. I reckon you might be able to fit the MPT solenoid to the VTD box and have your MPT TCU at least drive the clutches in the right direction. I possibly should have mentioned earlier that I have already put the MPT solenoid int...

What you are saying makes sense but I though the Vehicle Speed sensor reads the clutch drum. At least that's what it says in the service manual and when you look at the sensor it sits a few mm away from the drum. (see pic attached)

Im betting the difference is in the toothed wheels as this will cause lockup the moment you start to move. I'd have to pull the transfer housing off again to be sure but in the mean time I have just tried to count the teeth on the first picture I posted. There is certainly 30 teeth on the MPT clutc...

would it be the system making it closer to a 50/50 split for acceleration for a reason? iam aware that the subaru system does measure throttle and causes a change in torque distribution that way aswell a speed differences Perhaps you are right but I can't see why the vehicle would think it needs mo...

Hi Gannon, thanks for taking an interest in my dilemma. I had considered wiring in an Oscilloscope to measure the duty cycle but considering the subaru service manual is content to perform diagnostics based on DC volts I figure a good fluke multimeter will give a reasonable approximation of the DC v...

Hoping to continue a previous thread with a fresh topic of discussion 4EAT MPT Clutch Assemby (<== See this link for some pictures and history) To summarise the story. I have purchased a 1990 Gen 1 Liberty AWD Sedan and discovered that the auto transmission is not original. Instead of a Multi Plate ...

I'd like to continue this discussion but I think the subject line has lost a bit of meaning. I will start a new thread to discuss VTD transmissions.

can you compare the 2 toothed wheels that VSS2 reads? I have a feeling that they are different. I think you may be correct. I have a spare MPT clutch to count but for the VTD that would mean opening up the extension housing again. I'll have to wait until I can get a new gasket. Can you supply more ...

Have you compared the SVX and Liberty TCU pinouts? I have traced out the transmission wiring diagram for a 1990 Liberty and a 1992 SVX and found the TCU I/O to be exactly the same on both model vehicles. I am prepared to say that I believe my car has the original Torque converter and Final reductio...

Can anyone comment on TCU differences between: Gen 1 Liberty AWD Auto 4EAT with MPT and SVX Auto 4EAT with VTD I am certain the original TCU isn't correctly controlling the newer transmission properly. Happy to buy a SVX TCU if anyone has access to one from a wrecked car. Last resort I will get this...

there was no gen1 VTD boxes. this gearbox is not original. Agreed, I did say that earlier on. Thats not to say you can't bolt a VTD rear end onto a gen1 auto box. I honestly don't believe this would be possible as they have a very different mechanical set up. You would also need the 4EAT transmissi...

Its impossible to have RWD only. The reason you are getting rear wheelspin is because of the biased torque split and because the rear is lighter than the front, so the rears are the first to break traction. Yes, I now believe you are correct. I must have getting mostly rear wheel spin with very lit...

I purchased the car at a heavily reduced price because it had torque bind knowing that it would be an easy fix. At that time it had permanent bind with the FWD fuse either in or out. Pretty much gauranteed the duty c solendoid wiring was faulty or the solenoid itself. This was confirmed when I repla...

Thanks mate, this is golden information and is starting to explain a lot of the unusual torque split behaviour I am getting from this transmission. I am still getting some rear wheel drive with the FWD fuse installed. Almost certainly someone has put a Australian Delivered SVX transmission or perhap...

It's a shame I didn't take a photo of the rear end of the transmission with the extension housing removed. If I try to describe it I would say there is a clutch basket with three planetary gears visible behind still attached to the output shaft when the housing is taken off. That could be a match to...

Vehicle: 1990 Liberty GX AWD Auto Sedan I was experiencing torque bind so went straight in for the Duty C solenoid and what I found was very surprising. Please view the attached photo. The extension housing on the left is from my car. The one on the right is from the same model car. Both are standar...