Outer Limits 4x4 Board

i have a wrecker here chaseing me front diff disc to disc with 24 spline axels to make it easy for them what year definitly had 24 spline?

i dunno what year, but i have a 97 model one sitting here with 120K, make an offer and its yours.

Andy

About 94 on. When they updated the Disco1 I'm pretty sure.

so if i ask for a diff out of a 95 disco 1 i should be prety well spot on ?and it should all bolt up to my 72 rangie?

460cixy wrote:so if i ask for a diff out of a 95 disco 1 i should be prety well spot on ?and it should all bolt up to my 72 rangie?

Yes and No. Diff will bolt up but the axles will obviously need changing and you'll need to retrofit all the hubs and so forth off the Disco as the later model axles flanges are slightly different (bolts are larger, etc..).

Best off changing the entire unit over and fit the 95 Disco set-up complete, plus it's quicker

Front will fit with a bit of fiddling around as well.

Trav

24 spline was introduced from mid 93 - and some cars even have 10 spline rears and 24 spline front diffs. It's a Land Rover thing! So from 94 onwards, yes and up to the D2.

Agree, swap the whole units if you can as the off sets on the Disco's is slightly different to the earlier Rangies. They will fit, but you lose track width marginally.

Aquarangie wrote:

460cixy wrote:so if i ask for a diff out of a 95 disco 1 i should be prety well spot on ?and it should all bolt up to my 72 rangie?

Yes and No. Diff will bolt up but the axles will obviously need changing and you'll need to retrofit all the hubs and so forth off the Disco as the later model axles flanges are slightly different (bolts are larger, etc..).

Best off changing the entire unit over and fit the 95 Disco set-up complete, plus it's quicker

Front will fit with a bit of fiddling around as well.

Trav

460cixy wrote:i have a wrecker here chaseing me front diff disc to disc ?

bloke from the wrecker called today and said his got a second month 93 front out there and wants a grand for it what are they worth? and is there any way of telling if there 24spline with out pulling the center out? bloke does not want me pulling anything off to check but can i tell by the drive flanges as thats prety easy to check? i dont want to have to get one from interstate

I'd think that'd be a 10 spline, I can get you one of those for half that

Dude, I got a front and rear 24 spline disco diffs of here for $300.

$1000 for just the front, I say keep looking.

If it's a 24 spline front end it'll have dust caps in the centre of the drive flanges.
If it's a 10 spline it'll have a solid 1 piece stub axle.
1993 is the year they changed, only way to tell is the drive flanges.

BTW, $1000 is very rich for a 93 front diff disc to disc.

Yup they went to dust caps after the 8th month 93, ie after VIN JA032850, but as said be carefull cause some still had 10 spline rears fitted with 24 spline fronts!

You will need to take out the rear axles to check to be sure. I've also seen them advertised as 24 spline when they were clearly not so, and for far too much money. We paid less than 100 bucks for 2 rear 24 spline axles plus rear discs, calipers, pads, hubs, spindles and bearings.

hmmm well i am in canberra and over priced is the word . the price is for the whole front end not just the diff but i recon its a bit pricy. so if it has the little hub caps fitted on the front drive flanges then its 24 spline? i couldend give a rats arse about the rear

Might I ask what you are getting this for? You are aware that those axles have the weakest CV joints ever used in a Land Rover?

its going in my 72 rangie 2door can the cvs be up graded?

Davidh wrote:If it's a 24 spline front end it'll have dust caps in the centre of the drive flanges.
If it's a 10 spline it'll have a solid 1 piece stub axle.
1993 is the year they changed, only way to tell is the drive flanges.

Do the disco 10splines have the same drive flanges as 10 spline rangies?

KiwiBacon wrote:

Davidh wrote:If it's a 24 spline front end it'll have dust caps in the centre of the drive flanges.
If it's a 10 spline it'll have a solid 1 piece stub axle.
1993 is the year they changed, only way to tell is the drive flanges.

Do the disco 10splines have the same drive flanges as 10 spline rangies?

Yep, exactly the same.

dont want to start another debate, but the CVs are usually not the problem, the axle is, where it enters the CV, or indeed the stub (which in Rangies is good cause they are easily replaceable. The CV diameter is big enough, 93mm, same as 60 series and CVs are pretty much CVs given they are a patented product - and most of the good ones come out of the same factory in Japan. Don't mention China.
The 24 spline axles are better cause they don't narrow down as much as the 10 spline and being a later development, presumably the material strength is also higher - more splines also transfers the loading from the axles to the CVs etc better. The CWP or the sun gear assembly is really only an an issue if you are running big rubber or just driving too dam hard. I've seen them break with 35's, but what does'nt - 'cept maybe GU's which are bigger again (and very much heavier)...........I'll stop there 'cause this has been covered time and time again

Not quite....

The 24 spline axles narrow MORE than the 10 spline where they enter the CV at 32 splines. THAT is the problem.

Cost wise the ONLY thing worth doing these days is the Longtracks shafts and CVs, but you need a later style axle.

I'm just asking what he is trying to achieve. A stock late model axle is not stronger than the one he has in his 1972 RR.

edit: Looked for Spline information.

Polar Sections:
32 spline = 0.192
10 spline = 0.212
23 spline = 0.281

Torsional strength is basically proportional to these numbers.

well now im confused as to what to do i dont want to go overbored and put toy gear in there i thought it would be a stronger setup and with the bonus of better brakes as well

Unfortunately, there are no strong stock front Rover axles. Other than the CV joints, the stock 24 spline diff centers are crap as well.

where do the centers let go? in the side gears like the 10 splines? it will have lockers eventualy should cure that problem


ok well this is what i plan on doing! i will get the 24spline front for the time being for the bigger brakes . then i can do a toy conversion on the old diff houseing in my own time and as i have the money to do so does this sound like an ok idea? or will the 24 spline handle 33,s ok? bearing in mind i dont tend to drive hard and stop as soon as i start geting axel chatter ect

Ooops, sorry, Red90 you are absolutely correct 'bout the 24 spline polar thickness. I forgot, and this is the reason we went for JacMac axles into Nissan CVs adapted to the rover spindles. I may have been recalling a discussion about the thickeness and 'narrowings' on the rear 24 spline axles vs the 10.....??

I would just stick to standard gear for the moment and save you money until you can afford to upgrade, eg, JacMac etc. 33s and sensible driving should not cause too many dramas in my opinion. We ran 10 spline and 33s for some time before we were convinced that they would break and should be replaced. Hard driving (AKA teenragers) did not break anything in that time. In any event you are likely to break the short axles which are easy to replace and should be cheap to buy from the wreckers.

Nothing is unbreakable, even the halowed Nissan gear breaks from time to time, especially when drivers get sooooo confident it won't!!

i havent broken one of those stubs yet i realy thought thats where it would let go but i was very wrong.

460cixy wrote:well now im confused as to what to do i dont want to go overbored and put toy gear in there i thought it would be a stronger setup and with the bonus of better brakes as well

GQ Front diff, Toy Centre or 80 Series rear diff.

The GQ diff is a bolt in if you make a new panhard and steering arm. Should be able to get the diff for under $500

80 series rear diff takes a little more work but well worth it IMHO.

Plus you get the benefit of 4.11's at basicly no extra cost.

Link to some pics of the buildup of mine.

http://www.4wdmonthly.com.au/forum/show ... hp?t=25052

Br careful with the 93 Disco/Rangie stuff as kit's a mish-mash of splines and flanges.

Aquarangie was a 11/92 build with 93 flanges but had 10 spline axles front and rear. Alsio had the 1 piece CV with ABS ring pressed onto the bell.

I remember this as I fitted a 10 spline ARB air locker to the rear of Aquarangie and if I had of done more 'reserch' at the time, the 24 spline axles and flanges were identical bar splines, which in turn would of bolted up without any issues at all We live and learn, the hard and expensive way

Trav

Take a oook at Ebay - set of 24 spline stuff - cheap too

see

http://cgi.ebay.com.au/Land-Rover-Range ... dZViewItem

good find its shame shit like this goes for silly money tho

red90 wrote:Not quite....

The 24 spline axles narrow MORE than the 10 spline where they enter the CV at 32 splines. THAT is the problem.

Cost wise the ONLY thing worth doing these days is the Longtracks shafts and CVs, but you need a later style axle.

I'm just asking what he is trying to achieve. A stock late model axle is not stronger than the one he has in his 1972 RR.

edit: Looked for Spline information.

Polar Sections:
32 spline = 0.192
10 spline = 0.212
23 spline = 0.281

Torsional strength is basically proportional to these numbers.

However it is interesting that when Keith and Bobby tested a late model axle and CV recently, the shaft broke at the THICKEST part, not where it is necked down to 32 spline. When you actually look at the axles, the 3" or so of the shaft closest to the 32 spline end is blue - so they are doing something special with the heat treating - or maybe machining a shaft that is already hardened and then truing to re- harden just the 32 spline end.

i wonder how after market 24 splines would go