Outer Limits 4x4 Board

Hey just a quick question

ive got a discovery with a 10 spline rear diff, how much stronger are the 26 spline rear diffs? im running 34" simex's and have found a cheap rear diff would it be worth it to put that in the back of it?

cheers

mroffroader wrote:Hey just a quick question

ive got a discovery with a 10 spline rear diff, how much stronger are the 26 spline rear diffs? im running 34" simex's and have found a cheap rear diff would it be worth it to put that in the back of it?

cheers

Get a salisbury.

24 spline shafts are 33% larger diameter and should be 33% stronger (if same material).

Ring and pinion strength is the same though, as is diff strength unless you upgrade to 4-pin.

so would a sailsbury rear be better? and stronger?

Much stronger however a lot heavier - some say can affect handling due to being unsprung weight. Without a shave underneath, you lose some ground clearance also. Length of driveshaft will also need to be changed.

Well not really.... The Salisburys use the same size halfshafts so really don't get you much unless you upgrade the shafts.

Just get a 24 spline locker and aftermarket shafts and you will be happy.

And, oh yah Ben, 24 spline is 39% stronger than 10 spline.

basically im looking at it like this.....i may be able to get a sailsbury for quite cheap, it requires quite little modification to fit it and it is alot stronger than what i already have what do you guys think..... should i do it or not?

mroffroader wrote:basically im looking at it like this.....i may be able to get a sailsbury for quite cheap, it requires quite little modification to fit it and it is alot stronger than what i already have what do you guys think..... should i do it or not?

Given that you are running 34s then YES. I have a shaved sals and 33's and I don't have any clearance problems.

However - the guys down south who drive in muddy ruts all the time would disagree. So depends on how critical clearance is where you are - lots of mud and deep ruts like victoria???

John - The diff is HEAPS stronger, and that is where it counts. What is 6% between friends...

ISUZUROVER wrote:
However - the guys down south who drive in muddy ruts all the time would disagree. So depends on how critical clearance is where you are - lots of mud and deep ruts like victoria???

Subtle Ben, Very subtle

ISUZUROVER wrote:John - The diff is HEAPS stronger, and that is where it counts. What is 6% between friends...

Well, expect for the pissy little shafts that I have seen break on a stock rig driven nicely...... There may be more work getting one in than the OP realises.

Then he still has a 10 spline front axle.

And thirdly, what is the point of 34" Simexs with open diffs, anyway....

Perth, WA

Ben, didn't have enough money to make it all the way home?

red90 wrote: Well, expect for the pissy little shafts that I have seen break on a stock rig driven nicely...... There may be more work getting one in than the OP realises.

True - I broke an (aftermarket) halfshaft on 32's withan open diff - but Mal said he didn't think it would happen with a genuine axle. Most of the failures in defenders have been due to the spline lubrication problem.

Also plenty of halfshafts available.

Then he still has a 10 spline front axle.

Rome wasn't built in a day...

And thirdly, what is the point of 34" Simexs with open diffs, anyway....

MD lockers are cheaper for salisburies.

Perth, WA

Ben, didn't have enough money to make it all the way home?

Decided to see what life was like over here "where the desert meets the sea" (also known as the most remote capital city in the world). The mining and resources boom made the job offers more lucrative than on the east coast - sure you don't want to come work over here for a few years??? Discos are MUCH cheaper now .

yes i have only just got the vehicle and the rear diffs are the most problematic i have heard so this will be one of the very early mods + that is another reason why i am doing the rear sailsbury as you can get cheap lockers......the point in running 34"s with open diffs???? im not sure myself maybe ask the previoyus owner lol........but this is all going to change .......yes drive alot of mud and the tyre sizes are just getting bigger and bigger and the ruts deeper and deeper .....i am only 15 im living in new zealand so $$$$$ is an issue so it will be another slow build for me

ISUZUROVER wrote:MD lockers are cheaper for salisburies.

For the on topic portion of my post

Will Mal do a 30 spline Sals locker and shafts without robbing you blind? Then it would be worth it.

I thought Mal was retiring and selling the business??

ISUZUROVER wrote:.........sure you don't want to come work over here for a few years???

You never know where the job takes me. I wouldn't doubt that that job will come back to life......

ISUZUROVER wrote:Discos are MUCH cheaper now .

Here as well. But I'd have to get an Isuzu powered 110....

200TDI going in this weekend.

red90 wrote:

ISUZUROVER wrote:MD lockers are cheaper for salisburies.

For the on topic portion of my post

Will Mal do a 30 spline Sals locker and shafts without robbing you blind? Then it would be worth it.

I thought Mal was retiring and selling the business??

There have been a few discussions about Mal doing 30 and 35 spline versions. Don't know if he has made any though. I don't personally know anyone who has broken a MD (HYTUFF) axle - even on 35" tyres. Ralph reportedly twisted one in his salisbury though. But he destroyed about 3 r&p's before he put the sals in...

Although the business is up for sale, no sign of him slowing down.

You never know where the job takes me. I wouldn't doubt that that job will come back to life......

Plenty of work over here (WA) in oil and gas, and mining - you can just about name your price.

ISUZUROVER wrote:Discos are MUCH cheaper now .

Here as well. But I'd have to get an Isuzu powered 110....

200TDI going in this weekend.

They are much cheaper too - a 110 county and a 120" ute sold recently for $4-5k AUD (each).

There are 2 oz-built 110 countys living in Vancouver... One is owned by Ray Wood.

ISUZUROVER wrote:There have been a few discussions about Mal doing 30 and 35 spline versions. Don't know if he has made any though. I don't personally know anyone who has broken a MD (HYTUFF) axle - even on 35" tyres. Ralph reportedly twisted one in his salisbury though. But he destroyed about 3 r&p's before he put the sals in...

I know personally of 1 front broken on 32's in a rut, 1 rear on a Salisbury with 35's twisted and 1 rear on a Defender with Rover rear on 35's twisted. None of these have done a CW/P in the process. All locked.

Slunnie wrote:

ISUZUROVER wrote:There have been a few discussions about Mal doing 30 and 35 spline versions. Don't know if he has made any though. I don't personally know anyone who has broken a MD (HYTUFF) axle - even on 35" tyres. Ralph reportedly twisted one in his salisbury though. But he destroyed about 3 r&p's before he put the sals in...

I know personally of 1 front broken on 32's in a rut, 1 rear on a Salisbury with 35's twisted and 1 rear on a Defender with Rover rear on 35's twisted. None of these have done a CW/P in the process. All locked.

What did Mal have to say when they were brought back to him? I remember you said they were fairly new axles so they couldn't have been the EN25 stuff. I would seriously suspect material or heat treating problems if the axles are breaking before the ring and pinions.

Gday Ben,

The front the owner replaced and the Salisbury the owner replaced. I'll find out what the go was with the Defender with Rover rear.

ISUZUROVER wrote:There have been a few discussions about Mal doing 30 and 35 spline versions. Don't know if he has made any though. I don't personally know anyone who has broken a MD (HYTUFF) axle - even on 35" tyres. Ralph reportedly twisted one in his salisbury though. But he destroyed about 3 r&p's before he put the sals in...

Although the business is up for sale, no sign of him slowing down.

Is nobody running bigger than 35? A 110 should have 38s.

I guess the whole axle issue shys people away. I always laugh when I see people complain that you need to upgrade components. What do you they think "other" brands do. One of the guys I wheel with said he stopped counting the costs at $30k and that is just a TJ on 35s. But to stay back somewhere on topic....that same guy would tell you he would NEVER go bigger than 35s with even the best aftermarket 30 spline axles.

red90 wrote:

ISUZUROVER wrote:There have been a few discussions about Mal doing 30 and 35 spline versions. Don't know if he has made any though. I don't personally know anyone who has broken a MD (HYTUFF) axle - even on 35" tyres. Ralph reportedly twisted one in his salisbury though. But he destroyed about 3 r&p's before he put the sals in...

Although the business is up for sale, no sign of him slowing down.

Is nobody running bigger than 35? A 110 should have 38s.

I guess the whole axle issue shys people away. I always laugh when I see people complain that you need to upgrade components. What do you they think "other" brands do. One of the guys I wheel with said he stopped counting the costs at $30k and that is just a TJ on 35s. But to stay back somewhere on topic....that same guy would tell you he would NEVER go bigger than 35s with even the best aftermarket 30 spline axles.

Micka was running 37"s on a 110 - either with stock axles or MD axles? Snarba was running similar on rangie 10-splines and 4.7 diffs!!!

The haultech lockless 110 (now owned by Andrew e) competed in tuff truck with the toy/30spline conversion on 37's.

Most people I know are still only running 35" or smaller though.

All depends on how mechanically sympathetic you are...

Jacmac make a 35-spline conversion for the salisbury, and a little birdy told me that a small but very reputable US supplier will also have a 35 spline conversion - at very reasonable prices.