Mud-club

Vehicle & Technical => Discovery => Topic started by: drmike on September 24, 2006, 20:23:18

Title: R380 gearboxes
Post by: drmike on September 24, 2006, 20:23:18

Simple question. Will an R380 gearbox and attacjed transfer box from a 90 fit a Discovery as a more or less straight swap?

Thanks

Mike

Title: R380 gearboxes
Post by: Dr Neil on September 24, 2006, 20:31:46

if it's anything like the LT77 the bell housing will be different along with the selector mechanism on top of the gearbox....

hope this helps

Neil.....

Title: R380 gearboxes
Post by: Xtremeteam on September 24, 2006, 21:46:58

the R380 box in a defender is the same IIRC if it comes of a 300 tdi,if its anyother engine its different i think

Title: R380 gearboxes
Post by: drmike on September 26, 2006, 12:16:19

Thanks Mike it's just that there sometimes R380 boxes + transfer boxes on eBay and I'd like to know I can bid with some confidence of fitting them!

Mike

Title: R380 gearboxes
Post by: Budgie on September 26, 2006, 15:22:51

I'm sure I've read somewhere that the selector position was on a different place on the 90 box compared to the disco.
Isn't the gearstick located further back on the Disco box?  :-k

I could be wrong though!  :wink:

Title: R380 gearboxes
Post by: drmike on September 26, 2006, 19:26:24

Whose a little ray of sunshine?

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

Mike

Title: R380 gearboxes
Post by: petergalileo on September 27, 2006, 20:04:52

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 !

Title: R380 gearboxes
Post by: Guardian. on September 27, 2006, 20:25:57

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

Title: R380 gearboxes
Post by: Xtremeteam on September 27, 2006, 20:47:01

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 !

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.

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

Title: R380 gearboxes
Post by: snezza69 on September 28, 2006, 06:18:18

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.

Title: R380 gearboxes
Post by: Guardian. on September 28, 2006, 08:15:34

ahhhhh, now im gutted as i turned down a defender box proper cheap from a good source as i thought it needed [!Expletive Deleted!] about with to fit!
not to worry, learn something every day.