Cuiser 9" vs 8" high pinion strength

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throw a LC 60 axle under it (similar sping pad spacing). HP 8" in the front is not a great benefit over the cruiser stuff.
 
Yeah, but I've got a 40 axle just sittin around. Couldn't you just move the pads on it?
 
You'll lose turning radius
 
The springs are out 1" each side, so would the steering arms hit? If it's just a tire issue IFS rotors and hubs will give an 1"1/2 each side. Plus my wheels are 1"1/2 backspaced.
 
Gotcha, a HP 9.5" diff. Very sweet. Have any pictures of a setup like that?

Some not very good ones, this 80 series.

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The 2 PCD's that are close together are toyota 9.5 and H233, you will just need a spacer to keep the axle centerline (face depth - toy 42.5mm, 9" 42.55mm, H233 50mm)



The other PCD is ford 9''


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You dont need to machine Toyota sides into a Patrol locker anymore to make Toyota axles fit. It seems now you can fit a regular RD136 airlocker and the new unified sizing means that you can just drop in the Toyota sides (ARB # 728H111) and it will work. Very nice! If it works well then I'll HP the rear also.

The hi pinion diff being used in a rear configuration.

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This is the small front diff from my cruiser ute , when it was on 31s

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all that shine near the red paint is missing teeth
 
This is the small front diff from my cruiser ute , when it was on 31s

all that shine near the red paint is missing teeth

That would be the non-elocked version by the aussie locker, so from a 91-92?

You musta been wheeling it pretty hard. I got some auto-lockers with my 80 and ended up selling them instead of putting them in. Looking at your pics I think that may have been a good idea. I suspect I might have an easier time getting into trouble on 37's and the cummins, then I would on 31's witha 3FE.. :doh:
 
I remember a local Mini guy saying he installed a thrust block on his HP 8". A machined block that is a mm or so away from the ring gear, opposite of the pinion, which all but eliminates deflection. Deflection is what causes the ring gear to shave off teeth. Says he hasn't blown a diff since, and has installed a small block.

Example: http://www.truehi9.com/thrustblock2.html
 
I remember a local Mini guy saying he installed a thrust block on his HP 8". A machined block that is a mm or so away from the ring gear, opposite of the pinion, which all but eliminates deflection. Deflection is what causes the ring gear to shave off teeth. Says he hasn't blown a diff since, and has installed a small block.

Example: True Hi9 high pinion Ford 9 inch third members richmond

There was pics of a bolt added into the third of a diff used on a build with the diamond axles, cant remember who off the top of my head, maybe metal tech...
 
That would be the non-elocked version by the aussie locker, so from a 91-92?

You musta been wheeling it pretty hard. I got some auto-lockers with my 80 and ended up selling them instead of putting them in. Looking at your pics I think that may have been a good idea. I suspect I might have an easier time getting into trouble on 37's and the cummins, then I would on 31's witha 3FE.. :doh:


Yea was wheelin out of a river bed , the ute is a 2000. I wish I had a factory e lock :D, the lunch box locker has never caused any dramas in my cruisers for the locker side of things, I had a fj75 with the big front diff that had a lunch box locker as well never had any diff problems with it but was for ever smashing cv's, now with the small front diff in the ute I have atm , I have a clicking cv for ages and it hasn't broken so far well i blew the gears before the cv,
I'm now running 35s and haven't had any dramas since . Strange maybe just a bad diff batch
 
coulda been bad heat tempering or porosity in the steel of the ring gear??

Im curious now about how much stronger the e-locked version is versus the non e-elocked. And what it is that makes a difference between the two.

I think if I have the diffs apart again, I will look into how hard it would be to add a "thrust block" in. But then I may just be transferring the "weak link" to somewhere else...
 
coulda been bad heat tempering or porosity in the steel of the ring gear??

Im curious now about how much stronger the e-locked version is versus the non e-elocked. And what it is that makes a difference between the two.

I think if I have the diffs apart again, I will look into how hard it would be to add a "thrust block" in. But then I may just be transferring the "weak link" to somewhere else...

The big difference in the e-locked diff versus open diff, as I understand it, is the carrier. The carrier with an e-locked diff is machined steel, in addition to being larger overall, versus the non-elocked carrier which is cast. I would imagine that the carrier is stiffer with the e-locker diff, possibly eliminating, or at least reducing, ring gear deflection under load.

Thoughts?
 
I just picked up this" 4x4 garage toyota edition" magazine. It has some pics of Ben Swains (w/ Slee Off road)axles on his rig. It mentions that he modded a 9.5" rear to accomodate 1.5" 35 spline (sounds like D60*HD*) shafts for the rear. I sent an email to ARB asking if they could swap side gears to run this size of shafts, and they basically said they could only go to a different spline.

Anyone know a little more about what was done and what can be done to go to larger rear shafts, maybe only the E-locker rear third has room for bigger side gears?

This is what I mentioned earlier about the diamond axles, I thouhgt it was someone else's though.
 
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Interesting, the "change in spline count" IS making a 1.5" 35 spline axle shaft fit in a cruiser carrier. And it has already been done.


D60 rears are only 30 spline BTW. D70 rears are 35 spline (and D60 HD theoretically/sometimes apparently)
 
Interesting, the "change in spline count" IS making a 1.5" 35 spline axle shaft fit in a cruiser carrier. And it has already been done.


D60 rears are only 30 spline BTW. D70 rears are 35 spline (and D60 HD theoretically/sometimes apparently)

Ya D60 HD sorry, I was looking at the arbusa application guide:
Front 1977-90 Dana 60HD 38.1 (1.50") 35

http://arb.com.au/media/products/air-lockers/application_chart.pdf

The article does in fact say 1.5" 35 spline shafts in the rear.

can you elaborate on how and on what carrier it has been done?
Is it a matter of mixing parts or is it sending off parts for machine work?
Im not sure exactly what you are saying.

Edit: just for reference from arb's site:
LandCruiser 40, 55, 60,62, 70, 73, 74, 75 &80 Series,Lexus LX450

Front To 1989 12 bolt, full floating 33 (1.31") 30 RD1421
1990-97 10 bolt, full floating 33 (1.31") 30 RD132

Rear
1969-76 12 bolt, semi floating, 45mm bearing ID 33 (1.31") 30 RD1531
1977-89 12 bolt, full floating, 45mm bearing ID 33 (1.31") 30 RD1421
1990-97 12 bolt, full floating, 50mm bearing ID 33 (1.31") 30 RD1421
1977-92 12 bolt, semi floating, 50mm bearing ID 33 (1.31") 30 RD153


Oh, and the fords D60's (not HD) were 1.5" and 35 spline on f350 front 86+, rear 88+ and 00-01's according to ARB's site.

:beer:
 
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They take the side gears out of a LC ARB and broach them to 35 spline (as I understand it)
 

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