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help R 380 from disco to defender

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has anyone fitted a R 380 box from a disco to a defender? or does anyone know definitively if this feasable?

I need to mate to a 3.9 v8, I'm hearing so many diferent stories, ..

selector mech can/cannot be changed,

ratios same/different from 200/300 tdi to V8,

input shafts different lengths,



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It is possible as I have one fitted to my 110.

It does involve taking the box apart though and if you're not proficient with that, maybe not a good idea.


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I dont know about the ratios, I assume the same or are at least workable between a tdi/v8.

The shafts are the same between disco/defenders, just the selector mechanism has to be changed.


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The input shafts are different lengths as the bell housings are different. It is a non trivial exercise to change the selector mechanism as well. Not worth the hassle, plenty of Defender R380s around. Note TD5 Defender R380 won't fit 300Tdi Defender either as TD5 bell housing is much longer.

200/300 Tdi ratios the same but different to V8 - its all on the Ashcrofts web page.

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