Thread: HD CV kit for Defender D1 RRC 24 spline

Originally Posted by rick130

Or if you are getting some made, how about broached for a 23 spline input shaft, and, say a 24 spline or larger count female spline for the output with a separate stub shaft, a la the RRC CV's ? (or the Kam ones ?)

I intend to do what Serg is doing and convert to the wide stubs/hubs and was going to do what he's done, use the RRC CV with a Hi-Tuff 10 spline stub shaft.

Originally Posted by FiveSPDDisco

Im sorry I do not know what you are asking for.

Originally Posted by lokka

Hes talking about the CV from a pre 87 range rover which is 23 spline inner 10 spline outer and has a short stub shaft with intergrated drive flange

These in the early rangie IMHO and ive tested this are the strongest standard rover CV set up

If you were to make the same CV in the HD material and have the outer spline say 24 spline the same as the diff side gears and a short 24 spline each end stub shaft then use the maxi/hi tough/ashcroft style drive flange .

If you could do this you would surely get plenty of people here interested including me

Also are you still able to get the rear axles that keith was selling for disco 1 with the intergrated drive flange ?

I don't have a pic, but copied the following (2 different drawings merged into 1) from a manual to try and show what is meant. Nor can I recall the Land Rover part number.

The drawing on the left shows the stub shaft with integral drive flange (item 9). The drawing on the right shows the CV joint (item 5).

Although not visible in these drawings, the outer "bell" of the CV has a female spline, instead of the integral stub shaft like used in an AEU2522. The stub shaft (item 9) engages with this female spline.

IIRC, apart from the removable stub shaft, the early RRC CV's are very close to the same size as the AEU2522, i.e. the "star", "balls", "cage", & "bell".

Many converted from this early RRC CV to the 110 CV, AEU2522, when fitting stronger aftermarket half shafts (e.g. Maxi-Drive) because of the stronger stub shaft.

What is being asked for is a stronger 300M/4340 CV of this style, with a 24 (or 23) spline removable stub shaft from 4340 or 300M.

Originally Posted by Bush65

I don't have a pic, but copied the following (2 different drawings merged into 1) from a manual to try and show what is meant. Nor can I recall the Land Rover part number.

The drawing on the left shows the stub shaft with integral drive flange (item 9). The drawing on the right shows the CV joint (item 5).

Although not visible in these drawings, the outer "bell" of the CV has a female spline, instead of the integral stub shaft like used in an AEU2522. The stub shaft (item 9) engages with this female spline.

IIRC, apart from the removable stub shaft, the early RRC CV's are very close to the same size as the AEU2522, i.e. the "star", "balls", "cage", & "bell".

Many converted from this early RRC CV to the 110 CV, AEU2522, when fitting stronger aftermarket half shafts (e.g. Maxi-Drive) because of the stronger stub shaft.

What is being asked for is a stronger 300M/4340 CV of this style, with a 24 (or 23) spline removable stub shaft from 4340 or 300M.

Is this it?

For the life of me I could never figure out why companies making HD LR cvs did not do it this way in the first place. It would be much more econimical to produce.

1 main cv bell/body
1 cage
1 set of balls
different stars for different spline input
different stub shafts for different OEM and AM applications

basicly build the biggest cv that would fit inside a coil sprung swivel ball and go from there. If you take the AEU2522 cv and add some material thickness to the bell so its a little bigger on OD and keep the internals the same size (no small balls) and make it out of 4340/4340 300m or Hy-tuf would be a great start.

Originally Posted by isuzurover

Is this it?

Ben, it has been so long since I had stock cv's in a rangie, my memory might be letting me down.

My recollection is that the boss for the outer stub axle was not as long as that in the pic.

What CV's were fitted to the Series 3, Stage 1? I have never seen one apart, and I know there were items, such as front drive shaft, that were unique to the Stage 1.

Originally Posted by uninformed

For the life of me I could never figure out why companies making HD LR cvs did not do it this way in the first place. It would be much more econimical to produce.

1 main cv bell/body
1 cage
1 set of balls
different stars for different spline input
different stub shafts for different OEM and AM applications

basicly build the biggest cv that would fit inside a coil sprung swivel ball and go from there. If you take the AEU2522 cv and add some material thickness to the bell so its a little bigger on OD and keep the internals the same size (no small balls) and make it out of 4340/4340 300m or Hy-tuf would be a great start.

And IMHO there are much more suitable steels than 300M for that kind of wear and severe shock duty. But we are not the manufacturer.

The source of the picture implied they were discovery. SO they may be a D1(?) stubless variant.

Originally Posted by Bush65

...

What CV's were fitted to the Series 3, Stage 1? I have never seen one apart, and I know there were items, such as front drive shaft, that were unique to the Stage 1.

Stage 1s have basically an AEU2522, however the shaft is ~10 mm longer from memory. I think they might be an AEU1811...