: Rockwell, with portals, discs, and airlocker


BJ On Roids
09-13-2002, 06:03 PM
unreal...

this thing is a rear steering diff, with 37 spline axles (bigger than 1.5 inch into the side gears, of the carrier, 10.25" crown) from a nissan patrol (heavy duty version) has airlocker, heaps of clearance, 4.87 gears, and running behind a FJ40 (sortof) with 454ci BBC, and 44" boggers, auto, NP205 and so forth, it also has wheel mounted disc brakes, hydraulic active suspension, and lots more SIKASSHIT!!

and it wasn't to expensive to the guy(s) who built it

just some splining, a damaged rockwell (less centre) bent nissan housing, some truck tailshaft unis, the parts can be had for under $1000 AU (which is around $600 US)

credit where it is due though
the truck is owned by:

www.onall4.com.au

and ive only seen it, i know nothing about it except what he told me, when i was taking photos of it (and cracking WOOD) i saw it hold up to some abuse too......

you've seen the bootie fab......
and now you get the WOOD cracking fab!!

BJ On Roids
09-13-2002, 06:06 PM
yeah another teaser, ive got photos coming out of my ears of this thing.....

i LOVE it...and i dunno why.....maybe i should seek help?

elf_cruiser
09-13-2002, 06:07 PM
So, where's the rockwell part??

I can't tell from the photo...

BJ On Roids
09-13-2002, 06:10 PM
very sexual!! ;)

i need some time alone now! :flipoff2:

BJ On Roids
09-13-2002, 06:31 PM
these hubs look familiar? :flipoff2:

sorry dude

yeah the outers and the axles are rockwell, as far as i am aware, custom fabbed housing...

strength of a rockwell, weight of a dana 44, turns on a bottle top, crabs and ramps 1300 on a 30 degree ramp

elf_cruiser
09-13-2002, 06:36 PM
OHHHH I SEE NOW!!!

Those aren't portals, he just has a jointed shaft btwn the carrier and the knuckle. I was wondering why the axle tubes were angled like that. There are joints just after the side gears, and just before the steering joints, i think.

Ohh well, cool rig!!

wngrog
09-13-2002, 06:37 PM
That is some SERIOUS dead kitten material!

Wow!

wngrog
09-13-2002, 06:41 PM
For those of you that don't get that....

afecko
09-13-2002, 06:48 PM
....and down go three kittens. :eek:

Andy

BJ On Roids
09-13-2002, 07:19 PM
hey nolen ;)

im just kidding around...how about this picture!! ROFL
http://www.AzChatfield.net/Comebacks/GodKills_Domokun.jpg

JOHNS351C
09-13-2002, 08:11 PM
I have ben thinking of an axle like that for a long time now and I love how theirs turned out, very professional looking, one of the owners must work at a machine shop! Describe the hydrolic susp.? whats the front look like? you know though, all that design and it still has only a single ended hydro ram. Why? the resorses it would take to create the rear axle the guy should have ben able to make his own hydro ram.

I need more pics!!! this truck has me spanking already!!!

coiledbj42
09-13-2002, 08:42 PM
have a look in the aussie tuff truck thread. The owner of the white fj45 trayback that is in some of the pics did the diff. He owns a big engineering firm.

The hydraulic suspension on the yellow one is just a coilover with a hydraulic cylinder used for the top mounting point. Simple stuff really. It is just standard lever type hydraulic valves in this one.

The white cruiser has a little bit more complicated set up but works pretty much the same way. It is hard to explain how it works without seeing it for yourself. I will try anyway!

Imagine a hydraulic cylinder threaded like a coilover. there is a ring type of mount that the cylinder sits in. there is a coil sitting above the ring and one one below the ring. Then each coil is mounted to the cylinder like a normal coilover. So you have one spring the controls up travel and one that controls down travel. So the cylinder is suspended in the ring mount by the two coils. The other end of the ram is then connected to the diff. So it actually has very little "suspension" movement but alot of hydralic movement. The hydraulics are all operated by electric over hydraulic type valves. There is a little box with several toggle switches next to the steering wheel.

Any aussies with pics of dobbins suspension?

IronBenderII
09-13-2002, 08:45 PM
Daniel... I wanna be bad assed! You build them, I'll test them!

-Jack

Aggro
09-13-2002, 08:53 PM
...weight of a dana 44... That's some damn good CRACK you've got there. :smokin: Weight ov a small block chevy, maybe. :flipoff2:

jeeper111
09-13-2002, 10:04 PM
It looks like good craftsmanship but I would have done it with a rockwell center sectionIf I did this with mine it would be perfect. I wouldn't have to run a CV any more. Maybe one day but with strait up rock wells you would have to deal with the fact that one of the double jointed axles would be at a greater angle than the other. This could be solved though by running thr rockwell joints that are simillar to birfields. I am not talking about the bendix joints. These are the same design as a birfield and from what I have heard are as strong as that u-joint style accept that they do not get weaker the further you turn them and they dont cause the jolt in the steering at full lock. I dont know where to get them but I have heard that they are very rare. You could use two of these and that would keep the shaft stron even though the one side would be at a steeper angle.

JR
09-14-2002, 12:21 PM
Originally posted by Daniel B Little
OK that is very cool.... got me thinkin fast ...
ok lesseee ....9 inch centers rockwell outers custom shafts.....

through pinion.......6X6?

OK WE CAN DO IT!

now who wants to be badass?:D



This thread isn't about your junk, Daniel B Little.

Strange Rover
09-14-2002, 03:37 PM
The thing to remember with this axle is that it doesent have portal reduction on the outers so you do need the strength of the centre cause its 1:1 all the way to the wheels.

Also I think the was hes done it is to respline the necked down part of the axle to drive the top uni joints. Now a 1.5in d70 axle is 38.1mm in dia and the necked down rockwell is 39.5mm which he has cut the spline into. The diameter of the 27spline shafts in the nissan centre is 38.4mm so Im guessing that he would have made all the inner splines to this size (37 spline, 38.4mm dia).

This axle is not as strong as a stock rockwell and from the other thread not as strong as a alloy d60/d70 or 14 bolt. I would doubt that it as strong as a stock d70 although it could be (but we are getting down to comparing material strength) Just based on the size of the 37spline compared to a 35 spline or 30 spline 1.5in the 37 spline would be between 5% to 10% in front based on size.


Im goint to build myself one of these. Almost got all the bits to do it. I think the advantage of having a high clearance rear is awesome (even with a stock clearance front- like this rig and the pink tubed EB). The front you can just pick your line to miss everything and the rear can go where it wants to. And you can keep the engine forward and keep the rig low with a stock front as well.

Anyway heres a couple of pics that I took.

Sam

Strange Rover
09-14-2002, 03:39 PM
another

Strange Rover
09-14-2002, 03:44 PM
another

coiledbj42
09-14-2002, 05:31 PM
discs and calipers are gq nissan patrol.

coiledbj42
09-14-2002, 06:03 PM
he has had that in there for ages

BJ On Roids
09-15-2002, 02:38 PM
[QUOTE]Originally posted by Daniel B Little
[B]I SPY an 80* CV...:eek:


yeah...good eyes...that's a big bertha 80 degree CV...he has them front and rear..... :eek:

ausjeep
09-15-2002, 11:59 PM
I have a nice video of how the hydraulic suspension behaves.
Also some commentary of how it is all put together. This is before he added that new rear axle though. I think? bit hard to tell.

Very cool video though! :D
Satisfaction guaranteed and it's only 3.8mb or something so even the 56kers will be happy :flipoff2:

hydraulic FJ40 (http://www.orp.com.au/Mpegs/X-treme%20Sample%203.wmv)