D2 axle hydraulic steer

[tim90]

Just wondering if anybody knows what stroke hydraulic ram would be ideal on a full hydro steer D2 axle.

I have searched but found no answer!

Thanks, Tim

[lwg]

My guess would be no more than 8". I can tweak out just under 8" with my RRC axle, can't imagine you could get anymore with a DII axle.

[mongosd2]

I'm working on one for my D2,I plan using a 6" ram, but I'm putting toy fj80 axles under mine. Are you planning on turning something bigger than a 33 on that axle? If so, good luck...not gonna be happy with broken shit all the time. Even with the new hd cv's, your gonna need to 4.75 R&P's and that a really weak gear set (thin), not enough room in the 3rd for a taller gear set that will hold up...

[Buckon37s]

8in. 6 is not enough for a full turning radius. And a toy conversion in a stock rover axle will handle 37's.

[mongosd2]

toy conversion not available for the D2...your right, you need 8" for the rover axles...

[tim90]

Thanks for the answers. It will be running MacNamara hypoid diffs (toy R&P) and the new Ashcroft D2 axle stuff.

Was talking to Dave Ashcroft just the other day, the shafts and CVs look great and I reckon should be good to run a 40".

Tim

[lwg]

Originally Posted by tim90

Thanks for the answers. It will be running MacNamara hypoid diffs (toy R&P) and the new Ashcroft D2 axle stuff.

Was talking to Dave Ashcroft just the other day, the shafts and CVs look great and he reckons should be good to run a 40".

Tim

Good luck with that.

[Buckon37s]

Originally Posted by tim90

Thanks for the answers. It will be running MacNamara hypoid diffs (toy R&P) and the new Ashcroft D2 axle stuff.

Was talking to Dave Ashcroft just the other day, the shafts and CVs look great and he reckons should be good to run a 40".

Tim

[mongosd2]

huh!!!!!!! 40's...give me a break, or better yet, just try...I have to find the pic of the guys who ripped his whole knuckle off while tryin' to run 35's on his D2. The axle housing and knuckle mount will struggle to hold a 35. I think your asking a lot from the D2 axle housing...Post pic's when your done, I'd like to see it...

[tim90]

Interesting and thanks for the input. Must admit I had given thought to the axle innards but not the housing itself.

mmmmmmmm food for thought

Tim

[revor]

For all that $$$ I would put 80 series Axles under it and be done with it, Right Mongo?
I'm guessing the Ball joints let go on the D2 axle. Most that run 40" tires around here are full 1.5" 35 spline 300 M shafts and break them, usually not the U Joint (CTM) I'm curious how a Rover diff (pegged or not) would handle a 40 for anything other than mall cruising. I ran 39's on my Jeep with 30 spline alloy Axles and Bushed U Joints and regularly snapped shafts. So I went to 36's.

[tim90]

I am pretty confident the diff / R&P in the MacNamara will be fine. No pegging needed. The shafts will be 24 spline diff end and 35 spline at the outer end. The new CV's look like they should be up to it.

The vehicle will also be really pretty light.

But there is only 1 way to tell

Tim

[tim90]

Oh, and for info, the steering damper stroke is 220mm lock to lock on a D2 axle.

[ScottBowden]

The rear housing on my D2 bent when the tree fell on it. It is about 3/16" thick.

[mongosd2]

either 80 series or cut and fit 60's...shit, evean a 44 would be stronger...

[lwg]

Originally Posted by tim90

Oh, and for info, the steering damper stroke is 220mm lock to lock on a D2 axle.

Googling the conversion now.....


So that works out to be roughly 8.6". My guess is your not even coming close to using all of the throw in that damper. My RRC turns as sharp as physically possible now and I still only need ~7.5" (190mm) of travel to do this. I still think you only need about 7" of travel. Get an 8" travel ram and use stops to get it properly adjusted.

[tim90]

Originally Posted by lwg

Googling the conversion now.....


So that works out to be roughly 8.6". My guess is your not even coming close to using all of the throw in that damper. My RRC turns as sharp as physically possible now and I still only need ~7.5" (190mm) of travel to do this. I still think you only need about 7" of travel. Get an 8" travel ram and use stops to get it properly adjusted.

We will start with 8" and as you say, adjust or shim as required.

I doubt it is all the throw in the damper but it is presumably a good indication of how much stroke we need. That was turning from stop to stop.

If we are wrong then I will get a different ram!

Tim

Tim

[Buckon37s]

Originally Posted by revor

For all that $$$ I would put 80 series Axles under it and be done with it, Right Mongo?
I'm guessing the Ball joints let go on the D2 axle. Most that run 40" tires around here are full 1.5" 35 spline 300 M shafts and break them, usually not the U Joint (CTM) I'm curious how a Rover diff (pegged or not) would handle a 40 for anything other than mall cruising. I ran 39's on my Jeep with 30 spline alloy Axles and Bushed U Joints and regularly snapped shafts. So I went to 36's.

That's over doing it a little. I have been on stock u-joints for 2 years now and have not broken a one. But I have a light rig with moderate torque. Chromo is fine, 300m is way overkill for stuff that sized. The 300m built 60 could handle 44's easy, maybe even 49 iroks.

As to the D2 axle handling a 40 in tire. There is simply no way period. I just pulled my Dana 60 apart last night to replace the lower kingpin bearing and upper spacer. I burned it in 2 years. Even a king pin 60 goes through parts with 40's. It's just plain retarded to put them under a much heavier rig with a teeny axle.

[tim90]

Guess I must be a bit retarded then!

The buggy will weigh less than 1.5 tonnes fully loaded so lots lighter than any LR product.

Anyway, we will find out!!

Tim

PS what about a 39.5?

[ChicagoDII]

Originally Posted by tim90

Guess I must be a bit retarded then!

The buggy will weigh less than 1.5 tonnes fully loaded so lots lighter than any LR product.

Anyway, we will find out!!

Tim

PS what about a 39.5?

Tim,

Not to be rude or anything, but you are retarded if you buy 40" tires for your truck and run D2 based axles.

IT WILL NOT WORK!!!!!!!!!!!!!!!!!!!

There is no, lets try it, and see what happens. We are all trying to help you out here.

The D2 steering knuckles and ball joints dont even work well with a 35" Guys have ripped off entire knuckles. The weight of a 40" tire and the leverage of it is something the D2 axle cant handle. This is not one of those "no one has ever done it, so it might work, ill try it" instances. It will not work, there is no question. Run 35s, get better suspension, and be happy. You are heading down a very dark path, and all we will say is we told you so.

It does not matter how light your truck is, how much you reinforce or truss that axle, 40s, even 37s on a D2 axle will NOT WORK.

Sorry if that was a bit blunt, but its all true. Just ask anyone on here.

[tim90]

Originally Posted by ChiagoDII

Tim,

Not to be rude or anything, but you are retarded if you buy 40" tires for your truck and run D2 based axles.

IT WILL NOT WORK!!!!!!!!!!!!!!!!!!!

There is no, lets try it, and see what happens. We are all trying to help you out here.

The D2 steering knuckles and ball joints dont even work well with a 35" Guys have ripped off entire knuckles. The weight of a 40" tire and the leverage of it is something the D2 axle cant handle. This is not one of those "no one has ever done it, so it might work, ill try it" instances. It will not work, there is no question. Run 35s, get better suspension, and be happy. You are heading down a very dark path, and all we will say is we told you so.

It does not matter how light your truck is, how much you reinforce or truss that axle, 40s, even 37s on a D2 axle will NOT WORK.

Sorry if that was a bit blunt, but its all true. Just ask anyone on here.

I appreciate the advice, sorry of it appears I didn't. Was being flippant about trying it till it broke!

Guess for now I will finish my build with the Defender axles with Macnamara insides, run smaller tyres and worry about how to run a bigger tyre later.

So, advice taken on board and plans changed.

What about using a custom axle from the US? Any suggestions? Need good clearance, tough and hi steer knuckles. And preferably not stupidly heavy. Problem is that axle choice is quite limited over here but I would be happy to go custom.

Tim

[Buckon37s]

Originally Posted by tim90

I appreciate the advice, sorry of it appears I didn't. Was being flippant about trying it till it broke!

Guess for now I will finish my build with the Defender axles with Macnamara insides, run smaller tyres and worry about how to run a bigger tyre later.

So, advice taken on board and plans changed.

What about using a custom axle from the US? Any suggestions? Need good clearance, tough and hi steer knuckles. And preferably not stupidly heavy. Problem is that axle choice is quite limited over here but I would be happy to go custom.

Tim

Where are you located? That can help us give some advice. Also, if I did the math right, I think 1.5 tonnes will get you about 3300LB. You will most likely be over that. Everybody guesses low. Unless you are going full tube, no frame. What axles do you have access too?

[tim90]

Originally Posted by Buckon37s

Where are you located? That can help us give some advice. Also, if I did the math right, I think 1.5 tonnes will get you about 3300LB. You will most likely be over that. Everybody guesses low. Unless you are going full tube, no frame. What axles do you have access too?

I am in the UK.

It is full tube, no frame, strong and light. 4 link front and rear.

Axles in the UK are usual Jap stuff secondhand although not too common. LR stuff and little else.

Tim

[ChicagoDII]

Originally Posted by tim90

I am in the UK.

It is full tube, no frame, strong and light. 4 link front and rear.

Axles in the UK are usual Jap stuff secondhand although not too common. LR stuff and little else.

Tim

If you have money, which it looks like it, and youve got a few months to wait. PM Revor aka Keith from Rovertracks. He has Ford 9" axles sized up for rovers coming out soon. Thats the axle you want for 40s.

[Serious One]

Originally Posted by tim90

The buggy will weigh less than 1.5 tonnes fully loaded so lots lighter than any LR product.

Be careful what you say:



Land Rover 'Defender' 2x2