Outer Limits 4x4 Board

ive seen them in a few 4bys in 4wd monthly but cant find where people are gettin 6.1:1 ratio diffs for a landcruiser. i think the sporty40 team that won the first tuff truck challenge was running them.

Seen a set in a 60 series, apparently they are 6/37 gears. 37 stays constant in all the gearsets, i had 5.29 with 7/37.
Where they come from????maybe a coaster bus or a special order.
Andrew

hmmm yeah now i think of it they said something bout coming from a toyota truck.

I seem to remember hearing that they come from a Stout or some such.

a mate hass a couple of stout diffs but all the ratio's are differ'nt , no matchin pairs . . won't sell any off them .

you wouldnt happen to know how strong they are would you? they seem pretty rare and therefor expensive.

mate not sure on how tough they are but the pinon is pretty small compared to the ring gear , most of the blokes run in the 5.some thing ratio a lot stronger ,there run in speed way cars . hope this helps .

thanks for the info mate. yeah i was just keeping my options open, but when thinking about it ill probably just go 4.88s ill break heaps but pinion should be a bit larger.

there is a diff shop here in brisbane that can order them brand new out of Italy.

hmmmm i wanna change my diff ratios when i go 35's or 36's what ratio do i need?

i got a BJ73 MIDDY.... which runs landcruiser gearing

jake you probably have 4.1 gears now, 4.56 or 4.88 will do you fine, any lower (5.29's etc) and they start getting real weak, they start breaking in the front instead of CV's when you load them up, which sucks, a lot more expensive and more hassle to change out than a CV.

hmmm maybe ill get crawler gears aswell.... but that still dont help me on the bitumen..... so you recon 4.1 brian or are they too week?

hehehe are you pissed for new years already jakey!!

you already have 4.1's and they are plenty strong.


the Mark's crawler gears have an option of 8% underdrive in high range so they sort out your on-road gearing too - it gives you the equivalent high range gearing of having about a 4.4:1 diff.

dumbdunce wrote:hehehe are you pissed for new years already jakey!!

you already have 4.1's and they are plenty strong.


the Mark's crawler gears have an option of 8% underdrive in high range so they sort out your on-road gearing too - it gives you the equivalent high range gearing of having about a 4.4:1 diff.

AWWE TRUE HICCUP I DIDNT KNOW THAT BRIAN....LEARN SOMEFIN NEW EVERY DAY.......AND IM DEFINATELY GOIN MARKS CRAWLER GEARS TOO

BJ, they would be Masiero gears.
http://www.masiero.com/default1.htm you can download the catalogue from their website.
The 6.17 (37/6) Dyna Stout is a 12 bolt 10.5" diameter crownwheel.
There are also 6.50 & 6.83 ratio's from Dyna's as well.
I asked them about some Mitsi 5.29's but they don't do em anymore

ive been thinking about body roll and stuff caused by crawler gears for a while, and i recon if you have too low a gears before your axle and with a locker, you tend to roll around your tailshaft rather than your axle moving. for example the overkill suzuki of sam's in that tuff truck video it always rolled to the drivers side.

4.56's would be ideal for 35s/36s id say. return everything close to normal.

good point, the 'DAT-04B' G60 with SOA Landcruiser axles (Chris Angel) demonstrates this characteristic in a big way - I even get it a bit in the bundy with 4.88's and 35's, it likes to point that other side wheel riiiiight up.