gearing

Hello all,

I have a series 3 Lightweight Landy which is fitted with standard 4 speed (no overdrive) box and standard diffs. It already has "large wheels" and I would like to increase the gearing in a cost effective manner. I know overdrives, transfer case upgrades are available, but as I said, cost effective!
So to the question.

I am left with replacing the front and rear differentials to increase gearing and understand that early (pre P38) Range Rover diffs will fit and increase the gearing significantly, maybe too significantly for the 2.5 diesel engine fitted. However I have heard the rumour that certain early Rover car diffs will also fit and not give such a drastic rise in gearing as the RR items.

Anyone know if this is true and if so what model Rover are the diffs in?

Some body somewhere will know...........

Eddy.

hi i think if you can find yourself a good second hand axel from say a disco or rangey then with the higher gearing you will also get disc brakes on the rear end just be carefull of e-bay is ok if you carefull regards colin

Hi

If you check the LR magazines there are plenty of breakers there who will stock various diffs.

Only problem with replacing the diff from a non 4 wheel drive Rover is you will lose all the 4 wheel drive, also the prop may be out of balance for the diff.

Get a Range Rover Diff or go to you're local LR Specialist and ask (JSF in Norwich are great from a tiny Washer to probably a new Diff)

Charlotte

May be wrong but I have been told that the landy 90 diffs will fit. I don't think it's a good Idea to fit a rear axel off anything else as they have disc brakes which would give you better brakes on the rear and if you hit the brakes in the wet you have the possiblity off spinning off. If you are going to change anything put a 90 servo on only a small amount of conversion on the front wing of my 88 series III but on a light I have no Idea. I have fit a servo and 11inch drums on the front of my 88 and the brakes are great. The defender diffs are the way to go front and rear not just rear or you will have the rear wheels turning faster than the front which you may not notice off road but if you get on the tarmac I think you will brake something rapily. Do some homework on 90/Defender diffs. I am going to try in the near future as I have a 88 Diesel and it screems at 55MPH just to keep up with the traffic. It sounds OK at 40 MPH but people get a bit silly and start to overtake me on blind bends and all thats silly stuff. Hope I have been of help.


MINIMAN
Skipton Yorkshire

Thanks for the replies guys.


Don`t happen to know if standard 90 gearing is higher than series by any chance??

I know V8s have higher geared diffs, but what about 2.5 petrol / diesel 90s?
Unless anyone wants to donate an overdrive to a good cause???

Not sure about the 90s diff and the 2.5 gearing may be a good Idea to ask Teflon he seems to be one of the guys that knows alot about the good old british landy.


Miniman
Yorkshire