Propshaft lengths.

harveyp6

Well-Known Member
Would anyone be able measure the closed lengths of any P6 propshafts they may have lying around.
All I need is the distance between the flange faces with the sliding joint fully closed, and what model/gearbox it came from.

TIA.
 
cooper1203 said:
would one on the car be any good??

Only if you can get an accurate distance between the flanges, and between the end of the collar on the sliding joint and the flat front face of the tube itself, subtract the latter from the former, and then you'll have the measurement I'm after, and tbh, on the car, that's going to be pretty awkward and would definitely be going beyond the call of duty, and get you a mention in dispatches.
 
The two I have to hand don't have the sliding joint on at all.
If it helps, they're 41 3/4 inches.
That's standing upright on the one flange, measured to the top of the sliding bit.
 
Willy Eckerslyke said:
If it helps, they're 41 3/4 inches.
That's standing upright on the one flange, measured to the top of the sliding bit.

OK, I may be able to work something out from that. Do you happen to remember what they came off?
 
Well my V8 auto one is 34" from rear flange to end of splined section if that's any use.
I can get a measurement with the front joint tomorrow when I'm more suitably dressed to get under the car if needed..
Jim
 
corazon said:
Well my V8 auto one is 34" from rear flange to end of splined section if that's any use.
I can get a measurement with the front joint tomorrow when I'm more suitably dressed to get under the car if needed..
Jim

Thanks.

Don't worry about the other measurement as I can use the one you've given me, as the front section is going to be the same regardless.

34" is getting closer to what's needed.

I can cut and shorten, but if I don't have to, so much the better.

Should it come to it, would it be for sale, and if so how much?
 
harveyp6 said:
Should it come to it, would it be for sale, and if so how much?

I'm planning to get it lengthened for the new gearbox/diff combination. I know where there's a selection of props if you need one though :wink:
Jim
 
corazon said:
I'm planning to get it lengthened for the new gearbox/diff combination. I know where there's a selection of props if you need one though :wink:
Jim

OK. I knew you were doing the conversion, which is why I asked, thinking your old one might be surplus to requirements.

Personally I never lengthen props. If I need one longer than I've got I'll buy one the right length (if I'm really lucky), or more likely, buy one that's too long, and shorten it. Lengthening is more involved than shortening, and regardless of what the "specialists" say, I've found in all of the dealings I've had with them, most of them don't know what they're doing. I've had customers have props done and come back with faulty uj's, and uj's welded 90 degrees out and all sorts, so much so that if I want one done, I do it myself, but as I said, always by shortening.

I'm not sure which way this is going to go yet, but if I need one I'll put a specific wanted post up, but if you wanted to get a price from your secret stash, then by all means do so and PM me with the result.

Thanks again.
 
Harvey, that's food for thought. Out of everything it's what I've given the least thought to so far, being the last puzzle piece if you like.
The new box length to flange is near spot on to the 35. So the prop length difference would just be the rover diff extension tube vs jag diff which I haven't specifically measured yet, but I'm guessing is nearer 12".
I think I'll heed your advice and try and find one to shorten considering how much longer it will need to be.
I'm thinking something heavy duty from a 4x4 perhaps, I know some Navaras have alloy ones which might be a nice touch.
I've had experience of someone sending a prop away for "balancing". It came back with no marks of any kind, it hadn't even been touched..
Needless to say it went back again to have the job done properly.
90 degrees out would be rather annoying :roll:
So mine may well be available now :LOL:
Jim
 
Hi, Corazon, Be wary of Japanese propshafts as the flanges may well be drilled different PCD.
I have found a couple of links with LR prop lengths So you may be able to find a ideal length
amongst them or at least a longer one to adjust. Jaguar,s have the same flanges as you're
probably aware but they put centre bearings in. -

http://forums.lr4x4.com/index.php?showtopic=87209 - post #19

http://www.devon4x4.com/index.php?page= ... &Itemid=14

I'm not sure they are of use to Harvey because they're in that metric stuff. :wink: :D

Colin
 
Flange-to-flange on the two spares I have:

2000SC (1966) 44¼"

3500S (1973) 43¾"

This is measuring with the shaft vertical and the top flange horizontal purely by eye. If either measurement is close to what you need, Harvey, let me know and I can get a spot-on figure.
 
vaultsman said:
Flange-to-flange on the two spares I have:

2000SC (1966) 44¼"

3500S (1973) 43¾"

Thanks Stan. No need for you to take any more accurate measurements, I think the closest to what I want is going to be the V8 auto one, which I hope is going to fit without the need to shorten it.
 
No problem, I'll pack my spirit levels and water gauge away then! :wink:

Good luck with the project.
 
colnerov said:
I have found a couple of links with LR prop lengths So you may be able to find a ideal length
amongst them or at least a longer one to adjust. Jaguar,s have the same flanges as you're
probably aware but they put centre bearings in. -

http://forums.lr4x4.com/index.php?showtopic=87209 - post #19

http://www.devon4x4.com/index.php?page= ... &Itemid=14

Colin

Thanks for those links Colin, very helpful indeed.
I can't get an accurate measurement until I finalise the gearbox and jag diff mountings, but there's a big range to choose from so I'm sure there'll be something suitable. I'll update my build thread as soon as I make progress with those (all parts now bought in preparation, rose joints, threaded bushed ends, tube for ladder bars etc :wink: )
Harvey, PMing you right now.
Jim
 
Exploring this again now I'm getting closer to needing one.
I had resigned myself to just get one made up for around £150 but curiosity and money saving have got the better of me and I've been looking at suitable length production propshafts.
I've found that Vauxhall frontera b shafts are very close in length to what I need, chunky, cheap and plentiful.
Trouble is flange bolt pattern, it is rectangle 4 bolt but I can't find concrete info on what the bolt circle is.
Does anyone know if it's a match for rover/jag?
If not does anyone if the yokes would be compatible, so I can just swap the flanges back to rover items?
I've just found UJs that are listed as compatible with both frontera and defender so that could be a good sign..
Jim
 
Further to my last reply, I think I've found a bolt in match with a jag 420 single piece prop
 
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