Relocate rear LSD into front Diff...

[Benny78 Junior Member Find all posts View Profile Close Benny78]

Hi Gents,
I'm getting an E-Locker installed into my rear diff shortly and was wondering if you can then install the LSD from the rear diff into the front diff to essentially give me LSD front and Locked rear diff?

Is my logic flawed? maybe the diffs are not compatible but i would have thought they would have to be the same ratios etc?

Any persons who know about this that can offer advice would be great!

[williade Avid PP Poster! Find all posts View Profile Close williade]

It couldn't be done because the diff centres are different so the LSD won't bolt to the Crown wheel in the front diff.

An LSD in the front also will have a negative impact on the handling and give too much feed back through the steering column. In a part-time 4wd with free wheeling hubs its less of an issue, but in a full-time 4wd you really need to stick to a switchable locker.

[Benny78 Junior Member Find all posts View Profile Close Benny78]

Ok thanks for the speedy response Williade.

So can i ask- if its full time 4WD - why do i need to engage the center diff lock on the smaller gear lever?
I can understand for low range - but what is HIGH range 4x4.
PS i have an AUTO

[williade Avid PP Poster! Find all posts View Profile Close williade]

So can i ask- if its full time 4WD - why do i need to engage the center diff lock on the smaller gear lever?
I can understand for low range - but what is HIGH range 4x4.
PS i have an AUTO

Because as long as the centre diff is unlocked, the front and rear prop shafts are free to turn at different speeds. So if a single front (or rear) wheel looses grip all other three wheels will loose drive. When the centre diff is locked, both prop shafts must turn at the same speed. So the rear wheels can keep the vehicle moving when 1 or both of the front looses grip and vice versa.

[Benny78 Junior Member Find all posts View Profile Close Benny78]

Because as long as the centre diff is unlocked, the front and rear prop shafts are free to turn at different speeds. So if a single front (or rear) wheel looses grip all other three wheels will loose drive. When the centre diff is locked, both prop shafts must turn at the same speed. So the rear wheels can keep the vehicle moving when 1 or both of the front looses grip and vice versa.

Brilliant- Cheers mate

[samo Addicted PP Member Find all posts View Profile Close samo]

And besides the rear LSD is that useless it might as well be an std diff anyway. Cheers samo lol

[wooley Avid PP Poster! Find all posts View Profile Close wooley]

In the old hiluxes you could take out the front diff centre and put it in the rear, and visa versa. This could get you out of trouble if you did the pinion or whatever in the rear out on the tracks. A lot of the new stuff you can't do this as the front diff set up is completely different to the rear diff set up. The Prados, the newer Hiluxes, 200 series, and the FJ Cruisers, all the same, no go. The old simple design thought was better for obvious reasons and less parts to manufacture. Alas, those days are gone.
The Roo.

Old landcruisers too