Thread: Disco transfer box into a TD5 Defender

Originally Posted by Tombie

Upgrade tyres to 255-85...

Get a little more clearance, speedo becomes accurate, and slight reduction in rpm per km/h...

Plus a nice set of new rubber


Win

I had read that there are different coloured speed senders and all i need to do is get a different one, not sure which one though.

Originally Posted by nedflanders

I had read that there are different coloured speed senders and all i need to do is get a different one, not sure which one though.

That is for pre-td5 vehicles.

Would a Disco sender work?

Originally Posted by nedflanders

Would a Disco sender work?

Td5's and up take speed from the senders at the hubs (which work the ABS and TC).

To correct the signal you need a speedo correction unit (it's all electronic), truspeed used to make this, but I believe they are no-longer. Steve2223 has found an alternative I believe, try contacting him.

Or just change to 255/85's

Ashcroft sell a speedo correction unit...
It is a "speedo healer" brand, also commonly used on custom motorbikes.

Ashcroft Transmissions

Mike.

Originally Posted by MR LR

Td5's and up take speed from the senders at the hubs (which work the ABS and TC).

To correct the signal you need a speedo correction unit (it's all electronic), truspeed used to make this, but I believe they are no-longer. Steve2223 has found an alternative I believe, try contacting him.

Or just change to 255/85's

Implications also being that a Disco2 transfer case wont work in a Defender because of the omitted speedo drive.

Originally Posted by Slunnie

Implications also being that a Disco2 transfer case wont work in a Defender because of the omitted speedo drive.

Isn't it just blanked off, I doubt Land Rover went to the expense of different cases, but stranger things have happened

Originally Posted by nedflanders

Isn't it just blanked off, I doubt Land Rover went to the expense of different cases, but stranger things have happened

The speedo drive isn't in the case, it's in the output housing which should be swappable between transfer cases. I found this picture from pirate 4x4 that shows a housing with and without the drive. Whether its just plugged or not machined I have no idea.