Hilux Diff Relocation

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timotheus
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Hilux Diff Relocation

Post by timotheus »

This is my first attempt to post a constructive topic so apologies in advance. :wink:

When I first started reading here it was because I was looking to fix the problem of rubbing 33's in a solid front surf.

With help from people here, I made my mind to try and move the front diff forward instead of the equally (or more-so, time will tell) simple of idea of lifting the body.
I chose this path because my wagon already has had the springs reset and its high enough for me.
Also the hassle of going to crossover steering is beyond me at the moment, this first.

Anyway back to Maverick..
Steve_t647 linked me to these http://www.allprooffroad.com/index.php?option=content&task=view&id=51
Image

I said then that I would get onto tis in 2 weeks, that was 2 months ago :roll:

To describe the plates they have a stud or nipple in the center at 16mm diameter that fills the hole here...
Image

This picture tries to show where the plates (one per side) go and approximately where the location pin normally resides.
The horizontal is the plate, the other is meant to show the pin.
Image

Might just add this now. If you want bigger photo's check my album, Timotheus' Randoms[/i]

So the nipple faces down into the central hole, the idea being that the other holes replace it and that the hole the nipple fills locates the plate.
The holes on the US ones are at 3/4" and 1". So you can rotate them 180' for either 3/4" or the full 1" relocation.
Its relevant to understand that 3/4"-1" is about the most you can get without having to mess around with drive-shafts and more.
So I see this as a simple solution to one problem.

The plate has to be a minimum thickness to prevent the location pin (I don't have a photo of one now but ill try and get one later) from fowling on the axle perch.
My estimate for the thickness is 12mm, Thats the figure I gave the guy making me a set so if they don't fit I'll post a better size.

So the pin will be about where the red dot is below.
Image

So if you have a hole there like the above pic demonstrates then the diff should be forward by however far the nipple and the hole you're using are.

The plates thickness will impact on the total height your U-bolts have to hold, my reckoning suggests that 12mm will be fine, but Ill see when they are in.

For now thats all I've got.
Someone is making the plates, ill get them as I get the front seals sorted and a LSD fitted up front.
Once they are in (and as they are are getting done) ill try and keep the photos coming.
Tim.
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Steve_t647
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Post by Steve_t647 »

You may have to shorten the drag link for the power steering arm and the other doofery bit (to stop the diff droping too much) to keep the pinion on the same angle and not point down a little.

Doofery thing = The red rod on the diff to the chassis in this image

http://www.offroadexpress.co.nz/images/ ... .sized.jpg

Thanks Suprelux for the photo :oops: it may not be moving far enough to loose too much steering but you will loose some usually shortening the drag link will correct.

Good luck, and why did you wait till winter have you got a heated garage?
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Smurf
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Re: Hilux Diff Relocation

Post by Smurf »

timotheus wrote:So the pin will be about where the red dot is below.
Image

So if you have a hole there like the above pic demonstrates then the diff should be forward by however far the nipple and the hole you're using are.

The plates thickness will impact on the total height your U-bolts have to hold, my reckoning suggests that 12mm will be fine, but Ill see when they are in.

For now thats all I've got.
Someone is making the plates, ill get them as I get the front seals sorted and a LSD fitted up front.
Once they are in (and as they are are getting done) ill try and keep the photos coming.
Tim.


Why not just redrill your spring perches where your red dot is and move your diff forward that way?
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timotheus
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Re: Hilux Diff Relocation

Post by timotheus »

Smurf wrote:Why not just redrill your spring perches where your red dot is and move your diff forward that way?


We measured the hole at 16mm, seeing as I'm only going 3/4-1" forward the new hole would have been too close to the existing one.
2 16mm holes 25mm center to center apart leaves 9mm between the outer most points. A little too close for me, probably fine, but this way should be stronger.
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timotheus
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Post by timotheus »

Steve_t647 wrote:You may have to shorten the....

This being my first real attempt at doing doing sort of thing, I'm sure ill come across more.
I learn by experience so time will tell.

Steve_t647 wrote:Good luck, and why did you wait till winter have you got a heated garage?


I wish I even had a garage, all I've got is permafrost.
I have a possie of people with the right kinds of help, a friends brother is a fitter and turner (the plates) and my long time mechanic hopefully will let me fit them while he does the axle seals and lsd.
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Steve_t647
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Post by Steve_t647 »

Hope you have good insulation backed carpet for that permafrost!

Here is a tip for you do the drivers side first ( the most difficult)

You need a ratchet tiedown or something similar to pull the diff forward, tie it in place (forward) before you remove the spring's. Do everything up pretty close to tight before doing the other side too.

It is fun doing stuff yourself, I would love access to a workshop unfortunatley I don't know any friendly mechanic's that will let me play in their workshop's.

I am even less sure why you left it to winter to do the mods now! Good luck and stay warm.
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Smurf
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Re: Hilux Diff Relocation

Post by Smurf »

timotheus wrote:
Smurf wrote:Why not just redrill your spring perches where your red dot is and move your diff forward that way?


We measured the hole at 16mm, seeing as I'm only going 3/4-1" forward the new hole would have been too close to the existing one.
2 16mm holes 25mm center to center apart leaves 9mm between the outer most points. A little too close for me, probably fine, but this way should be stronger.


Fair enough.
I was going to redrill my perches to move my front diff forward to help fit larger tyres, but ended up throwing a set of rear springs in the front instead. Acheived the same result and gained a bit of height and flex too.
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De-Ranged
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Post by De-Ranged »

:? you don't want to put the holes that close on the spring perch yet the plate you put in will have them that close ?? how is this stronger the only way I can see him building these with out drilling a hole for the plates locator pin to fit in is to carve them from solid :shock: there is alot of work in doing that !!

If your worried about the rib between the two holes on a double drilled perch getting hammered into the original hole get your mate to machine up a tollerance fit plug to hammer into the original locator hole :wink: alot easier and will strengthen it no end

Cheers Reece
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Post by 4wdnuts »

doesnt one side on the front axle already have more than one hole in the spring perch already?
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timotheus
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Post by timotheus »

De-Ranged wrote::? you don't want to put the holes that close on the spring perch yet the plate you put in will have them that close ?.... carve them from solid :shock: there is alot of work in doing that !!

I thought at first to go with solid, but the chap doing them said he will drill conical holes for the nipples and spot weld them in, hard to explain but will be stronger than just having a piece of rod poking out.


De-Ranged wrote:If your worried about the rib between the two holes on a double drilled perch getting hammered into the original hole get your mate to machine up a tollerance fit plug to hammer into the original locator hole :wink: alot easier and will strengthen it no end
Cheers Reece

Not a bad idea at all, had it come to mind I would probably have gone with it. Im yet to get the plates so will see when they are in how it could have been done better.
Chairs Tim.
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timotheus
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Post by timotheus »

4wdnuts wrote:doesnt one side on the front axle already have more than one hole in the spring perch already?

Image

I genuinely don't know why.

So Why?
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