Front and Rear axle gear ratios?

[love2fly]

Australian RHD model.
Been looking on the differentials for the ID code/stamp to tell me if they are 37.9 gear ratios or?.
Fire wall plate says Trans is a H41 and Axles are KO82? Is this the 37.9 code?
Am I on track here?

 

[love2fly]

I think I found what I was looking for on this site - http://www.cruiserfaq.com/09-01.php
Looks like 4.11 gears.
Thanks

 

[AussieHJCruza]

Yep, KO82 is 4.11

 

[love2fly]

Kind of stumbled onto the web site for the listing explanation of the gear ratios for the Cruiser. I am kind of surprised that after 1979 Australia's fleet of incoming FJ,HJ's were not with a 3.70 set up like most of Canada and the US.
Thanks much.

 

[AussieHJCruza]

Yeah, I don't know why that is. Just another one of Mr. T's little peculiarities I guess!

 

[cult45]

There's been a bit of history that suggests our roads are less like smooth american freeways. The first Ford Falcons [XK through XM: 1960 - 1963] suffered consistent ball joint failure due to our 'goat tracks'. Perhaps the thinking behind the 4.11's vs. the 3.70's are for the same goat tracks.

 

[ozcrusier]

I was told from a landcruiser wrecker we only got the 3.7 diffs with the early 3 speed cruisers all the 4 and 5 speed got the 411 ratio.

 

[cult45]

I was told from a landcruiser wrecker we only got the 3.7 diffs with the early 3 speed cruisers all the 4 and 5 speed got the 411 ratio.

I heard that too oz. Are the 3.7's just as strong as the 4.11's? Just thinking you could swap in 3.7's and gain highway MPH when matched to an H55.

 

[ozcrusier]

I'm sure the diffs will be fine with your F engine but if you had a chev and were planning on four wheel drive burnouts you will have problems. I have read the early 3 speed boxes had a lower ratio transfer case that should bolt up to a 4 speed and give you the best of both worlds.