Jump to content

Transfer box ratios


Recommended Posts

for a 200 tdi Auto running on 35" tyres what ratio transfer box is best.?

This is high range as low ratios seem to be the same......... 1.003, 1.222, 1.410 or 1.667

just looking at giving the disco its road legs back.



Link to comment
Share on other sites

Standard Discovery high range should be 1.222 so I should think a 1.410 would do the trick.

Remember the circumference is proportional to the tyre diameters (because rolling circumference = pi x diameter) so if the standard tyres are about 29" (205R16 or 235/70R16) then you want a ratio:

35/29 x 1.222 which is 1.474:1 to give the same gearing.

Other factors like rolling resistance of the tread pattern will make a difference but 1.410 would be my choice in that situation, it will be a little higher geared than standard but probably still bearable :)

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...

Important Information

We use cookies to ensure you get the best experience. By using our website you agree to our Cookie Policy