Disco R380 gearbox with TD5 Dash

marshy714 · Jul 14, 2015

Hi, i am still undergoing my massive rebuild, my friend is currently working out the wiring for my crazy set up! im gonna have TDCI dash, TD5 Speedo/instrument panel, R380 Discovery gear box with original defender 300tdi engine, the problem we have at the moment is the speedo transducer ordered to work with the TD5 speedo doesnt fit the discovery gear box, could anyone shed some light on possible solutions? well out of my depth hear, im more of a bodywork man than electrics!

cowasaki · Jul 14, 2015

Doesn't fit the disco gearbox? The disco should be a R380 but the speedo goes into the transfer box. The transfer box is the same on the disco as the defender other than the ratio. I've done this with a TD5 dash into a Defender if you have any questions.

Retroanaconda · Jul 14, 2015

I believe some later Disco transfer boxes do not have a speedo drive as those vehicles used the ABS sensors to detect vehicle speed.

cowasaki · Jul 14, 2015

Retroanaconda said:
I believe some later Disco transfer boxes do not have a speedo drive as those vehicles used the ABS sensors to detect vehicle speed.

Yes ok.... Disco transfer boxes are cheap enough though!

marshy714 · Jul 15, 2015

i brought a td5 transducer hoping it would fit, but it wont fit in the transfer box as the one that's in it is a different size? im unsure what year the gearbox and transfer box are out of a disco?

cowasaki · Jul 15, 2015

marshy714 said:
i brought a td5 transducer hoping it would fit, but it wont fit in the transfer box as the one that's in it is a different size? im unsure what year the gearbox and transfer box are out of a disco?

Have you got a picture of the parts?

marshy714 · Jul 15, 2015

I have, I will load them up later!

Brown · Jul 15, 2015

The mechanical drive and the TD5 electronic version are usually the same size. There's some excellent advice about mating TD5 instruments up with earlier powertrains here
Installing a Defender Td5 Instrument Pack into a 200Tdi/300Tdi - Land Rover Technical Blog

marshy714 · Jul 21, 2015

These are the images my friend sent me who is sorting out the electrics, well trying to at least! i dont know the first thing about electrics!

marshy714 · Jul 21, 2015

he has been following the retroanaconda guide as linked above as well and i ordered the speedo transducer that is linked on the website!

aaronmorris · Jul 21, 2015

Would the second part fit into the speedo drive in picture one? Then put the whole lot back into the transfer box as was.

ratty · Jul 22, 2015

Myself and fanatic added a speedo drive to a td5 disco transfer box. Here is a pic of the defender drive alongside the disco blank.

marshy714 · Jul 22, 2015

the new speedo transducer square end is too big to fit into the gear? do i need to buy the above speedo drives to rectify this?

ratty · Jul 22, 2015

marshy714 said:
the new speedo transducer square end is too big to fit into the gear? do i need to buy the above speedo drives to rectify this?

The drive on the left in the pic shows a long collar with no actual drive. The one on the right shows a short collar with a drive. We simply switched the two over. Did yours not come with any type of drive at all?

Disco R380 gearbox with TD5 Dash

marshy714

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cowasaki

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Retroanaconda

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cowasaki

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marshy714

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cowasaki

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marshy714

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Brown

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marshy714

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marshy714

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aaronmorris

Head's a shed

ratty

I'm not special I'm limited edition

marshy714

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ratty

I'm not special I'm limited edition

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