Thread: Viscous Coupling

Definitely no relation to the D2 without CDL.

Without taking this thread to the P38 side of town or stealing it too much, the VC - although 95% or thereabouts lockable, I'm yet to find a situation that I couldn't drive off road. My P38 is the recovery vehicle among my 'usual' convoys. Regularly pulling 100 series, 80 series, GU's, a variety of dual cabs and even classics with CDL. It's definitely not a compromise when it comes to off road ability! Good wheel travel and good line-picking also benefits.

I have NEVER been snatched by another vehicle... EVER! And I live for low range!

Up the mighty VC!

Cheers
Keithy

Very true.
I think I've been in one situation where a mechanical lock would have been better.
Twas in a really deep hole with a vertical end wall a meter high. First gear low range flat foot and it wouldn't rev past 3000revs!

When we hit the end wall the front wheels come airborne and it felt like the handbrake was on; when the front wheels came down took a moment for them to start spinning. Granted it was easier on the cvs.

We got out under our own steam though!

Originally Posted by Keithy P38

Definitely no relation to the D2 without CDL.

Without taking this thread to the P38 side of town or stealing it too much, the VC - although 95% or thereabouts lockable, I'm yet to find a situation that I couldn't drive off road. My P38 is the recovery vehicle among my 'usual' convoys. Regularly pulling 100 series, 80 series, GU's, a variety of dual cabs and even classics with CDL. It's definitely not a compromise when it comes to off road ability! Good wheel travel and good line-picking also benefits.

I have NEVER been snatched by another vehicle... EVER! And I live for low range!

Up the mighty VC!

Cheers
Keithy

Feel free to steal the thread no problem. I think my question has been answered as in nobody with a classic or P38 has come on here and said yes backing down a steep slope when forward progress has been lost is dangerous due to the front wheels locking after the traction control has done it's thing. As soon as I put the Graeme Cooper CDL kit (the CDL is in the transfer case of most D2's up until mid 2001 only 2002 D2's had no CDL in the transfer case) in my 2001 D2 all good backing down a steep slope as the front wheels had to turn with the rear and the steering was no longer frozen.

Sorry to have to say this, one of the first mods that should be considered is to swap the VC and put in a lt230. I can't say this enough, I know not really related to the post, but the VC is rubbish and ready to break and get you stranded. You can get an lt230 s/h for a few hundred, front drive shaft for a 100. They said the VC is so nice and smooth and quite. Mine was clunky from the stretched chain. I found the lt230 to be just as quite. At least the lt 230 locks like it should. Rant over lol

Originally Posted by milld

Sorry to have to say this, one of the first mods that should be considered is to swap the VC and put in a lt230. I can't say this enough, I know not really related to the post, but the VC is rubbish and ready to break and get you stranded. You can get an lt230 s/h for a few hundred, front drive shaft for a 100. They said the VC is so nice and smooth and quite. Mine was clunky from the stretched chain. I found the lt230 to be just as quite. At least the lt 230 locks like it should. Rant over lol

How many km on yours when it failed?

It was around the 255k from memory. I inspected the rear output shaft that handles all the power and can see why it failed. Scummy insufficient poorly designed bit of metal. I laughed when I saw it. It only took a squirt on the pedal at the lights for mine to fail, I'm glad I wasn't out bush somewhere. People will say that as long as its well maintained blah blah blah, and the shaft is replaced around the 160k it will be okay, but why risk it when even the new output shaft has very minimal contact surface area to begin with.

Originally Posted by milld

It was around the 255k from memory. I inspected the rear output shaft that handles all the power and can see why it failed. Scummy insufficient poorly designed bit of metal. I laughed when I saw it. It only took a squirt on the pedal at the lights for mine to fail, I'm glad I wasn't out bush somewhere. People will say that as long as its well maintained blah blah blah, and the shaft is replaced around the 160k it will be okay, but why risk it when even the new output shaft has very minimal contact surface area to begin with.

So your viscous coupling was fine. It was the splines on the rear output shaft that went?