New Member-1st Real Q. 1991 RR - rear axles

[Ironbarks]

I have front and rear ARB lockers in a 1991 RR.

Having recently bought the vehicle i believe that the axles are standard pommie issue.

everyone i have spoken to has said with a smile on their face - get ready for them to snap. Is there an upgrade in axle etc that I can put in before they go half way up a hill out in the bush

the RR has a 50mm lift and 33" BFG AT's ( soon to be 33" muddies ) so am keen to realy see what this truck can do.

Thanks in advance

Steve

[Disco_Harvs]

Maxidrive axles seem to be a very popular choice.

If you do a quick search on that you're sure to find all the info you need.


Best of Luck.


Harvs.

[HangOver]

i have seen standard axels with lockers and without that have been strengthened by welding long wedge shaped bars across the length of the axel.

I often thought about doing this but don't know how complicated it gets.
I have seen a pic here on AULRO with one that has been done.
I think it might be Sith's but I am old an forgetful.

look here (http://www.fourwheeler.com/techarticles/129_0401_poison_spyder_customs_axle_truss/photo_01.html)

I dont mean as excessive as this but you get the idea

[HangOver]

found it:

here (http://www.aulro.com/afvb/attachment.php?attachmentid=1289&d=1167637450)

[D110V8D]

i have seen standard axels with lockers and without that have been strengthened by welding long wedge shaped bars across the length of the axel.

I often thought about doing this but don't know how complicated it gets.
I have seen a pic here on AULRO with one that has been done.
I think it might be Sith's but I am old an forgetful.

look here (http://www.fourwheeler.com/techarticles/129_0401_poison_spyder_customs_axle_truss/photo_01.html)

I dont mean as excessive as this but you get the idea


What you're talking about is reinforcing the axle housing, not the axles (half shafts).

As mentioned above Ironbarks, maxi drive axles are the go. Not sure if 91 RR has 10 spline or 24 spline axles though, but I have a feeling they're 24.


FOR MORE DETAILED INFO AND YOUR
NEAREST DISTRIBUTOR, CONTACT
MAXI-DRIVE ENGINEERING 4 Ryecroft St, Carrara, Qld, Australia, 4211
Phone: 07 5530 3934
Fax: 07 5530 3932

[DirtyDawg]

jeez Steve, axles are those hard bits of metal inside the housing Shaped like rod:D:D:D:D
Go the maxidrives I just tore the outer splines of of my originals .If you are running bigger tyres you will increase the chance of busting them or the CV's, try going the LR County CV's as they are the strongest LR have made. Buy the Drive Flanges or members aswell as they really make a difference...
Laminating the housing just reduces clearence unless your in competition type rock roughness.

[HangOver]

yer, yer I know that ;)

I have just always called the "housing" the axle and the "axles" the drive shafts. Maybe it's the pomme in me or maybe I'm just a bit slow.

I'll try to keep up :D

[dullbird]

yer, yer I know that ;)

I have just always called the "housing" the axle and the "axles" the drive shafts. Maybe it's the pomme in me or maybe I'm just a bit slow.

I'll try to keep up :D


yep we do to or half shafts so it must be the pommie in yeh;)

[Reads90]

yer, yer I know that ;)

I have just always called the "housing" the axle and the "axles" the drive shafts. Maybe it's the pomme in me or maybe I'm just a bit slow.

I'll try to keep up :D


Yeap me too thats what i call it .

But then again everyone gets confushed when i talk about parts like the front hockey sticks and other stuff. They wonder what is this bloody pom is talking about :D

[PhilipA]

Jacmac also do strong axles and rebroach the female splines in the diff.
Regards Philip A

[Bush65]

I think a 91 rangie would have 10 spline axles. The weakest part of the stock drive line is the 2 pinion diff centre, but the ARB's (4 pinion) have fixed that.

If you don't go over 33" tyres, it will depend upon how you drive and how much fatigue damage has occurred already, as to how the stock 10 spline axles will hold up.

With regard to how you drive. In one sense, lockers will allow you to crawl some obstacles that you would otherwise have to have momentum to get over. Crawling is easier on the axles.

A situation which leads to many broken axles with lockers, is lots of wheel spin and one wheel in the air, then getting some traction/forward movement and the airborne wheel suddenly landing. This creates shock loading that breaks the axle. The short side axles can not absorb as much shock loading as the long side axles.

Maxidrive makes stronger 10 spline axles. 24 spline maxi or MacNamarra axles are stronger again, but then you would need to change the side gears in the ARB's.

The 10 spline cv's are similar strength to the county cv's, so I wouldn't change them unless you change to after market 24 spline axles.

My advice is to drive it for a while. Maybe get some spare axles. However I don't know where you are or what the tracks are like in your area, and what is needed to drive them.

Unless you plan on wheeling it hard, you should get some good fun from what you have.

[Ace]

I think a 91 rangie would have 10 spline axles. The weakest part of the stock drive line is the 2 pinion diff centre, but the ARB's (4 pinion) have fixed that.

If you don't go over 33" tyres, it will depend upon how you drive and how much fatigue damage has occurred already, as to how the stock 10 spline axles will hold up.

With regard to how you drive. In one sense, lockers will allow you to crawl some obstacles that you would otherwise have to have momentum to get over. Crawling is easier on the axles.

A situation which leads to many broken axles with lockers, is lots of wheel spin and one wheel in the air, then getting some traction/forward movement and the airborne wheel suddenly landing. This creates shock loading that breaks the axle. The short side axles can not absorb as much shock loading as the long side axles.

Maxidrive makes stronger 10 spline axles. 24 spline maxi or MacNamarra axles are stronger again, but then you would need to change the side gears in the ARB's.

The 10 spline cv's are similar strength to the county cv's, so I wouldn't change them unless you change to after market 24 spline axles.

My advice is to drive it for a while. Maybe get some spare axles. However I don't know where you are or what the tracks are like in your area, and what is needed to drive them.

Unless you plan on wheeling it hard, you should get some good fun from what you have.

I agree with bigger tyres the diff centre itself is the weak point over the axles, if you are going to do it put a maxi drive locker in and axles aswell, you shouldnt have a problem.

This just happened to me, i thought the axle had broken but it was the pin through the centre of the hemishpere, it had just snapped. Axles were fine and i am only running 31's, but this broke after 2yrs of punishment so i did alright. With 33's they wouldnt last that long. Matt

[Ironbarks]

Thanks for all the info.
I have sourced maxidrive axles - 10 spline and they will arrive on Friday.
As I bought the vehicle with ARB lockers front and rear I will try this before splashing out for the maxidrive difflocks.

Am mostly at the moment out the back of Appin - south west Sydney