Vehicle & Technical > Discovery

R380 gearboxes

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drmike:
Whose a little ray of sunshine?

Now you mention it I seem to recall that as well.

Mike

petergalileo:
Doesn't the 90 transfer box use a different ratio to the discovery one ? Seem to remember driving a disco that had a defender transfer box, it did about 65 mph tops !

Worth checking out !

Guardian.:
different gear ratio and im not 100% but i dont think the 2 are interchangeable, without mods, im sure the disco box is longer.

Xtremeteam:

--- Quote from: "petergalileo" ---Doesn't the 90 transfer box use a different ratio to the discovery one ? Seem to remember driving a disco that had a defender transfer box, it did about 65 mph tops !

Worth checking out !
--- End quote ---



--- Quote from: "guardian off road product" ---different gear ratio and im not 100% but i dont think the 2 are interchangeable, without mods, im sure the disco box is longer.
--- End quote ---




Pete;

yes thats true,a disco uses a higher T box ratio of 1.22 in high but in lowbox they are the same,very doubt a disco doing 65 flat out as at the moment i have my 90 on 205's (disco size  :wink: ) running a defedner tbox (1.410 ratio) & does 70mph,BUT what you are saying is true.

Guardian,that was the case on the 90/110 range that used the LT77 box,the disco LT77 has a longer bellhousing to put the engine forward where as the 300tdi defender & disco the engine is forward on both models & the gearbox has the same long bellhousing,,the only difference to the 2 boxes which i got mixed up on is the levers are the other way round on a disco,BUT the box itself length wise etc is the same

snezza69:
I have a 300Tdi in my defender project with a Disco R380.  The engine is in the correct position and when it came to the gear remote I needed to cut out a section of the seat box.  The seat box and tunnel I bought from a breaker and were also from a 300 Tdi defender.

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