A place for more technical discussions. Please make sure you post in the correct section on the site, this way it keeps the site tidy AND ensures you get a more relevant answer.

Jimny Final Drive and Transfer Box Ratios

  • darthloachie
  • New Member
  • New Member
    Public
More
28 Aug 2014 19:32 #122894 by darthloachie
Replied by darthloachie on topic Jimny Final Drive and Transfer Box Ratios

Kirby wrote: You are correct Brave.

Anyone with a Manual non VVT can upgrade to the manual VVT diffs without spending lots on a transfer box. I was just curious as to why noone opts for that option.


That's because the jimny transfer box is a weak point as it is chain driven rather than gears

Please Log in or Create an account to join the conversation.

  • irishguy123
  • New Member
  • New Member
    Public
More
29 Aug 2014 20:33 #122958 by irishguy123
Replied by irishguy123 on topic Jimny Final Drive and Transfer Box Ratios
I'm surprised that this doesn't happen also. Regearing the final drives seems to be popular amongst wrangler owners for example.

Please Log in or Create an account to join the conversation.

  • irishguy123
  • New Member
  • New Member
    Public
More
29 Aug 2014 21:36 #122968 by irishguy123
Replied by irishguy123 on topic Jimny Final Drive and Transfer Box Ratios
Doing some quick sums on this:

235/75 15 is realistically the largest size of tyre I would want to run on my 2002 manual...

using the formula:

Old Gear Ratio × New Tire Size ÷ Old Tire Size = New Gear Ratio.

3.909 x 733.5 ÷ 668 = 4.29229

So using manual VVT jimny diffs (4.3) would return the gearing to factory spec.

Now I understand that rocklobsters are a great bit of kit but Im guessing a set of diffs could be picked up for 1/6 of the price?

Please Log in or Create an account to join the conversation.

  • Brave
  • New Member
  • New Member
    Public
More
30 Aug 2014 02:28 #122974 by Brave
Replied by Brave on topic Jimny Final Drive and Transfer Box Ratios
Also lowering the diff ratio will help reduce stress through the transmition though it will increase stress in the axle. How tough are the axles in the jimny?

Please Log in or Create an account to join the conversation.

Time to create page: 0.300 seconds
Joomla template by a4joomla
We use cookies to give you the best online experience. Please let us know if you agree to all of these cookies. Accepting the Cookies also accepts the Disclaimers for the website.