Series Diffs

[bemm52]

Are 2a Diffs interchangable ie can front centre be swapped to rear and vice versa, I realise there are differences in front and rear axle housings

Cheers Paul

[JDNSW]

In general, yes, unless it is a late 109 that has a salisbury rear axle, or has been fitted with one.

With this proviso the diffs are also interchangeable throughout Series production except that Series 3 Stage 1 and the very earliest 80" Series 1 had different ratios. (The diffs changed in detail through this production period, but remained interchangeable, and most parts are the same.)

[LRJim]

In general, yes, unless it is a late 109 that has a salisbury rear axle, or has been fitted with one.

With this proviso the diffs are also interchangeable throughout Series production except that Series 3 Stage 1 and the very earliest 80" Series 1 had different ratios. (The diffs changed in detail through this production period, but remained interchangeable, and most parts are the same.)Any reason you couldnt put a Salisbury on the front?

Cheers Jim

[pop058]

Any reason you couldnt put a Salisbury on the front?

Cheers Jim

The lack of swivel hubs on the salisbury diff housing maybe a stumbling point. [bigwhistle]

[Aaron IIA]

If I remember correctly, the 101 has a Salisbury differential on the front.

Aaron

[pop058]

If I remember correctly, the 101 has a Salisbury differential on the front.

Aaron

And 6 stud too.

[LRJim]

The lack of swivel hubs on the salisbury diff housing maybe a stumbling point. [bigwhistle]🤣🤣 ahh didnt even think about the swivels, still i wonder if its adaptable.
Cheers Jim

[JDNSW]

From memory, late models of the One Ton had salisbury front axles. Don't bother looking for these - the One Ton was never sold in Australia, and the best information suggests that the total number that ever came here can be counted on one hand, and as far as I am aware, none are known to exist in this country today.

The only reason for fitting a salisbury front axle would be if you were planning to run with front axle loading well above the design load for Series Landrovers. The Rover diff seems to survive reasonably well in applications such as the RR Classic D1 & 2 and Perentie where it has higher loads and higher power than is ever present in Series vehicles. (Although some of these had 24 spline axles)

[123rover50]

Any reason you couldnt put a Salisbury on the front?

Cheers Jim

I did it back in the late 80,s in my old 2A Forward Control. Put Salisburys back and front with Maxidrive lockers. I had made a semi trailer for it and was carting around a Mustang Skidsteer and a one ton mini excavator. The 2A FC came out with ENV diffs which were not that strong as I broke the housing for the pinion bearing.

[LRJim]

I did it back in the late 80,s in my old 2A Forward Control. Put Salisburys back and front with Maxidrive lockers. I had made a semi trailer for it and was carting around a Mustang Skidsteer and a one ton mini excavator. The 2A FC came out with ENV diffs which were not that strong as I broke the housing for the pinion bearing.How much punishmrnt did it cop🤣🤣, I thought the ENV was meant to be stronger than the sal? Is the sal centre in the FC? Or offset like the rover?

[123rover50]

The ENV has the inner pinion bearing in a tiny housing outboard of the pinion. This is the weak point. The housing casting breaks. The Salisbury like the rover diff has both bearings inboard and they are bigger and stronger.
My Salisburys are offset back and front.
Bit of a story on this FC here,
My First Forward Control (https://www.aulro.com/afvb/siia-and-siib-forward-controls/85495-my-first-forward-control.html)

[LRJim]

The ENV has the inner pinion bearing in a tiny housing outboard of the pinion. This is the weak point. The housing casting breaks. The Salisbury like the rover diff has both bearings inboard and they are bigger and stronger.
My Salisburys are offset back and front.
Bit of a story on this FC here,
My First Forward Control (https://www.aulro.com/afvb/siia-and-siib-forward-controls/85495-my-first-forward-control.html)Looks interesting ill have a read, ive always wanted to squeeze a Perkins 6 in a series you dont have it laying around still[emoji16]🤣
So you can get a sals offset to fit the front, as JD said not much point but interesting.
Cheers Jim

[123rover50]

I cant remember what I did with the Perkins. I have a couple of 4-182 Perkins here. Years ago I put one in a Rangie 2 door. My wife sold it for a 4 door.
One here still has a series 3 box bolted to it.
I wouldnt reccomend the 6-247 now, the Isuzu 4BD1 is a better choice.
When I put the Salisburys in I widened the track 4 inches so its not your standard width any more.

[whitehillbilly64]

Worked on South Western Electricity Board, Cornwall, UK, as Lineman for 6 years
All our S3's were 1 ton.
Wish I had one of them now.
Technical | 1-Ton 109" Land-Rovers 1968-77 (http://www.onetonlandrovers.co.uk/index.php/technical/)

whitehillbilly

[JDNSW]

I would add to the caution in that article - many of the chassis features pictured are on Australian military Series 2a Landrovers, and were, in fact copied from there by Solihull when designing the One Ton. So just because you see the extended hangers, shackles, spring stops etc, does not mean you have found a One Ton!