hey guys, i am doing a very unusual thing to me ke70 i want to lower my diff ratio to about 3.5:1 however i cannot seem to find the specs on the width of an s series diff and i know the f series diff is about 20mm to 30mm wider than a t series.

 

so what i would like to know is will i need to shorten an f series to fit my ke70 panel van, also would there be any other problems that i may come across?

 

cheers.

Pretty sure you will need to shorten it but there may be one that is the right length, I think they are 1410 standard I got a hilux diff for mine which is the right width.

 

Why do you want a F series? How much power are you making?

 

I might have a spare hilux diff the right length that should bolt it (not sure if the leaf mounts are the same though)

Volvo 240 or 740 series diffs are the perfect width - 1410mm from wheel mounting face to mounting face.

They are cheap as chips to buy, tough as freaken nails, and there there are a few options with final drive ratios.

 

Added bonus - they come with twin piston disc brakes.

 

Picking ratios is easy, there is a sticker on them which tells you the gear ratios.

You can also buy a Detroit Trutrac torsen LSD centre for them.

 

Ive got one fitted to my KE70 project car, which should be seeing around 400HP, and i know of a few other cars making plenty more power thru them regularly.