Axles (halfshafts) identification, upgrades, and information

[asmit]

Hey there guys,

I'd like to identify the rear axles in my RFSV perentie, because I'm aiming to install a rear diff lock for my trip at the end of this year, and need to figure out if I should be upgrading the axles or not.
Attached is a photo of the rear RH end, with the markings G T on it. Does anyone know if this is a heavy duty shaft or who manufactured it?

If these shafts are not heavy duty, and I want to upgrade, would I be right in looking for 'Late salisburry' axles? Such as these from ashcroft: http://www.ashcroft-transmissions.co.uk/halfshafts/salisbury-late-halfshafts.html

Hoping to make this thread a definitave resource for axle markings and the types fitted to our perenties.

Thank you

[303Gunner]

If you were to order from Ashcroft, the axles you need are the "Early Salisbury": http://www.ashcroft-transmissions.co.uk/halfshafts/salisbury-early-halfshafts.html . Perenties, even with the rear converted to Discs such as on the RFSV, have the early thick 5806 drive flanges, requiring the longer axles.

However, (especially as you are in Qld), I would contact Barry at Hi Tough Engineering in Carrara regarding his product. You would need axles HTE2454 and HTE2455, or a set complete with Hi Tough flanges is HTE2454/55.

Hi-Tough Engineering Pty Ltd
Unit 3/ 7 Ryecroft Street
Carrara QLD 4211
(07) 5530 4123

[Diana Alan]

If you ring Barry ask if he was making the 110 axles for the ADF, I've head a rumour that he was making the 6x6 halfshafts but have no documented evidence to confirm the fact or not.

[Philthy]

Can we correctly identify the type of shafts we have by counting the number of splines just on the outer ends?

Or can there be a variation between the number of splines on the end to number of splines on the differential end? 

I guess what I’m trying to say is the number of splines always the same on both ends?

Thanks Phil

[303Gunner]

No, all shafts (front/rear, 4x4/6x6, std/hvy duty) have 24 splines at the outer to match the 5806 flange.

According to the RPS, when originally built the Perenties had 10 spline inners, but as the years progressed they have been upgraded to 24 spline inners. It appears the Bushranger build 6x6s were 24 spline from new.

[asmit]

No, all shafts (front/rear, 4x4/6x6, std/hvy duty) have 24 splines at the outer to match the 5806 flange.

According to the RPS, when originally built the Perenties had 10 spline inners, but as the years progressed they have been upgraded to 24 spline inners. It appears the Bushranger build 6x6s were 24 spline from new.

I can second this in the context of front axles, it's my understanding that FFR, GS and civilian county 110's all have 10 splines at the diff end on the front axle. My rfsv, which has the 4 pinion diff, and shares it with the 6x6 has 24 splines at the diff end. (which I recently have seen personally while doing front seals)

[Carzee]

Note that rebuilt off-the-shelf front and rear axle and diff complete assemblies were swapped into vehicles as necessary (and as evidenced by AFM parts at auction currently).

There is no absolute statement we can make about what is under any Perentie. You just have to inspect them and make a record of what you got for later reference. A list of front and rear axle part numbers found in all variants and the HD equivalents to fit correctly at the diff end, even a locking diff end, would be very useful.

[Phoenix]

Ok, I have been passed on this information with regards to Axles, it will make it's way onto it's own page on REMLR.  Hope this helps.

Australian Perentie/Bushranger Front Axle/CV Combinations

Due to age and reduced demand patterns, UK material has been progressively turned down. That’s not to say that certain items are not unobtainable, either as genuine or replacement non genuine options, but from a continuous supply for sustainment the requisite quantities cannot be obtained. Accordingly various engineering and ILS decisions had to be made to effect fleet sustainment. These are reflected below.

In the interests of Configuration Management and product integrity the decision to commonise on the earlier
axleshaft/CV combination was made based on the maximum fleet usage of this combination coupled to tests
indicating a stronger combination than the later system.

Following turndown of the earlier combination, axle shafts were sourced locally and after testing (both static &
dynamic), in concert with DoD, of all non genuine CV replacements, a suitable overseas manufactured CV was
selected.

Accordingly, the following replacement P/Ns apply to the variants listed by RPS.

Axle Shafts:
02188, 02189, 02190, 02191, 02192, 02194, 02195
Up to Axle 20L48865

AEU2520 RH Half Shaft – CV end 23 Spline, Diff end 10 Spline - UK Part, No Longer Available, Replaced by
Australian Item P/N BYG4556

AEU2521 LH Half Shaft – CV end 23 Spline, Diff end 10 Spline - UK Part, No Longer Available, Replaced by
Australian Item P/N BYG4557

AEU2522 C.V. Joint – External Drive Flange end 24 Spline, Internal Half Shaft end 23 Spline - UK Part, No Longer
Available, Replaced by Australian Item P/N BYG4564

From Axle No. 20L48866 (Progressively changed in service on ‘as needs’ basis, but some remain unchanged)

RTC6754 RH Half Shaft – CV end 24 Spline, Diff end 10 Spline - UK Part, No Longer Available, Replaced by
BYG4564 with BYG4556 with circlip and spacer from original AEU2520/AEU2522

RTC6755 LH Half Shaft – CV end 24 Spline, Diff end 10 Spline - UK Part, No Longer Available, Replaced by
BYG4564 with BYG4557 with circlip and spacer from original AEU2521/AEU2522

RTC6862 C.V. Joint – External Drive Flange end 33 Spline, Internal Half Shaft end 24 Spline - UK Part, No Longer Available, Replaced by Australian Item P/N BYG4564 with BYG4556/BYG4557  and circlip and spacer from
original AEU2520/AEU2521/AEU2522

“No single pinion Perentie production differential was ever anything other than 10 spline at the diff end”

02207/02290 (02227/02256)


(Note: Some RFSV were upgraded (02290) and some were converted to SRV (02227) and subsequently SRV (SF) 02256. However for mechanical parts, RPS02207 still applies).

AYG7168 RH Half Shaft – CV end 23 Spline, Diff end 24 Spline – Australian Item

AYG7169 LH Half Shaft – CV end 23 Spline, Diff end 24 Spline – Australian Item

AEU2522 C.V. Joint – External Drive Flange end 24 Spline, Internal Half Shaft end 23 Spline - UK Part, No Longer
Available, Replaced by Australian Item P/N BYG4564

02185, 02186 (02232), 02208, 02209, 02210 (02222), 02211, 02212 (02262/02263), 02219

AYG7225 RH Half Shaft – CV end 23 Spline, Diff end 24 Spline – Australian Item

AYG7226 LH Half Shaft – CV end 23 Spline, Diff end 24 Spline – Australian Item

AEU2522 C.V. Joint – External Drive Flange end 24 Spline, Internal Half Shaft end 23 Spline - UK Part, No Longer
Available, Replaced by Australian Item P/N BYG4564

02225, 02226, 02228,

(Note: Bushranger 6x6 variants utilized a metricated Differential, which, whilst components are not interchangeable with the earlier Perentie diff, is as an assembly completely interchangeable. Accordingly differentials of both types will be found on both Perentie and Bushranger vehicles. Both Diff types are two pinion H/Duty diffs).

AYG7225 RH Half Shaft – CV end 23 Spline, Diff end 24 Spline – Australian Item

AYG7226 LH Half Shaft – CV end 23 Spline, Diff end 24 Spline – Australian Item

AEU2522 C.V. Joint – External Drive Flange end 24 Spline, Internal Half Shaft end 23 Spline - UK Part, No Longer
Available, Replaced by Australian Item P/N BYG4564

02227/02256

(Note: Bushranger 4x4 variant/s (SRV) utilized a metricated Differential, which, whilst components are not
interchangeable with the earlier Perentie RFSV diff, is as an assembly completely interchangeable. Accordingly
differentials of both types will be found on both Perentie and Bushranger vehicles. Both Diff types are two pinion H/Duty diffs as opposed to the single pinion standard 4x4 diffs).

AYG7168 RH Half Shaft – CV end 23 Spline, Diff end 24 Spline – Australian Item

AYG7169 LH Half Shaft – CV end 23 Spline, Diff end 24 Spline – Australian Item

AEU2522 C.V. Joint – External Drive Flange end 24 Spline, Internal Half Shaft end 23 Spline - UK Part, No Longer
Available, Replaced by Australian Item P/N BYG4564
…………………………………………………………………………………………………………………...............
Given the ‘Meccano’ like nature of Land Rovers, it is entirely possible that various differential/axle combinations
will be found over the coming years as owners ‘mix & match’ from Range Rovers, Discoveries and other
110/Defenders. However, the above listing holds true for production and service replacement of the Perentie/
Bushranger fleet as supplied to the Australian DoD.

[Elliottt]

My FFR came with 10 spline diff end - 33 spline cv end half shafts and a hardy spicer cv, I can't remember the part number on the hardy spicer cv

I replaced the hardy spicer cv when it broke with RTC6862 which is a 33 splined inner cv [after incorrectly buying and assuming I had 24 spline aeu2522 cv's and half shafts]
 

[Phoenix]

Quite right, I have corrected the entry for RTC6862 to show 33 spline where it should have instead of 24!

[Elliottt]

RTC6862 is 24 splines at drive flange end [ same as aeu2522] [[I think]] 33 spline Internal Half Shaft end


It should read like this;

I've seen 32 and 33 spline mentioned, not sure of the exact figure
 
From Axle No. 20L48866 (Progressively changed in service on ‘as needs’ basis, but some remain unchanged)

RTC6754 RH Half Shaft – CV end 33 Spline, Diff end 10 Spline - UK Part, No Longer Available, Replaced by
BYG4564 with BYG4556 with circlip and spacer from original AEU2520/AEU2522

RTC6755 LH Half Shaft – CV end 33 Spline, Diff end 10 Spline - UK Part, No Longer Available, Replaced by
BYG4564 with BYG4557 with circlip and spacer from original AEU2521/AEU2522

RTC6862 C.V. Joint – External Drive Flange end 24 Spline, Internal Half Shaft end 33 Spline - UK Part, No Longer Available, Replaced by Australian Item P/N BYG4564 with BYG4556/BYG4557  and circlip and spacer from
original AEU2520/AEU2521/AEU2522

“No single pinion Perentie production differential was ever anything other than 10 spline at the diff end”