Things you may not know about your Land Rover driveshaft (or propshaft) 

“Rubbing on a cable in a Discovery is no good; it is already no good” lol. You guys are great! Vera is an absolute Angel!

That was pure genius...as a physicist I was gripped.

Great video and presentation from over the pond ))))) 🇬🇧 Stay safe over there our German friends

Excellent. The most comprehensive explanation I have seen of the design considerations and why you should buy an original Land Rover part. Thank you very much!

Never knew driveshaft could be SO complicated, thank you.

only German can talk to his wife about math's and physics, and his wife responded. great!

The engineering & physics are great, but the chemistry between you guys is the best. Practical, informing, but above all - Entertaining!!!

Who knew a propshaft could be such fun 😉. I do like watching your content though, you're a good team.

I love lectures with Dr Discovery. Christian doesn't gloat about trying to be right but he adds a great discussion point and explanation

Vera you are a star - you just keep on smiling and adding explanations!!

Plunging joints! Who wouldn't want a plunging joint 😉 👍

Love these more technical videos. Keep up the awesome content.

Thank you for explaining!!!! Fascinating that we can get a better explanation on how systems work from folks like you rather than the dealer. Shame on you dealers.

Thx for the lesson of good information. ❤️🇺🇦🇭🇷🇮🇱🇺🇦❤️

I am one of the engineers who put this propshaft into the T5/Discovery 3 , working with GKN. The single piece propshaft was considered but to achieve the same bending moments as the 2 piece design would have required a 5" or 127mm shaft. This was not possible with respect to packaging. The diaphragm which failed on your propshaft was specifically engineered again with refinement in mind and to isolate driving vibration from the vehicle structure. Both decisions contributed to Discovery 3's excellent refinement.

Mechanical lectures spoken in a German accent have an authority that is unrivaled by any other nationality. All of us viewers around the world are just sitting nodding and quietly saying, "Yes, Herr Professor," accepting everything you say without question...

Gives me the heeby-jeebies seeing a propshaft with a UJ at ONE end. I was under the impression that UJs need to articulate in order to avoid continuously applying force to one point in each of the pivots, eventually squeezing any grease away from that point and causing wear. Conversely, when a UJ articulates the force is applied to a different point in each pivot as the propshaft spins, which squeezes the grease around inside the pivot and ensures every part of the pivot is lubricated. Having said that, if your OEM propshaft lasted 220,000km with no wear to the UJ, I guess wear on the UJ wasn't a problem. Nice to know LR CAN make reliable UJs after all. On the last Defender I had, the service manual said the propshaft should be greased every 1,000 miles (!) and, since I was travelling 700 miles every week it meant that I had to get underneath the vehicle and grease the propshafts EVERY weekend... which wasn't fun.

Morning Guys. Hope you're both well 😄 It was like being in school today lol 😂 But how intriguing was that 👍🏻 We all want cheap and China are masters at giving us that without the quality we need 🙄 Vera is so cute 😍 x 😎🇬🇧

So informative. Always learning from you guys.

Anyone else find this mesmerising? You sir are a very smart man and Vers is amazing 👍👍

Excellent explanation of how the mechanics of a propshaft can contribute to NHV in a vehicle,

This is a great explanation why German engineers and their engineering is so good!

I just love your mechanical, engineering explanations!!!

Outstanding.. Thanks for the great info!

Brilliant, thank you

Absolute joy!! UK Driveshaft, US Propshaft.

This was fascinating. I learnt loads thank you! You are great at explaining things! The word you were looking for when describing playing a guitar was strumming. Keep the videos coming

Like usual Far, far far above the usual YT stuff on here! Great work!

Very interesting comparison regarding the weight but maybe the missing OEM solid rubber bush could equal 0.5 kg? Your LR has now truly been re-TUNED. I absolutely love your channel because of your personalities and also in many ways it mirrors my work on my SL320 which on most occasions gets new parts like suspension bushes and bearings before they fail to future proof the car and my driving fun.

good video ... and wow that got technical

Just found this one. Very interesting, many thanks for making this video.

A really fascinating video for me, guys. As I don't have any technical training, almost all the info you shared here was new to me. Cheers!

Very interesting and helpful thank you.

I had exactly the same failures on my ‘04 Cayenne, this shaft looks near identical except the plunger. I got a Chinese special for £199 and a 5 year warranty. Mine has now been on over 2 years and still good. Best wishes to you both, Peter

Very funny, interesting and enjoyable 👏

What can some German Dude und deine Frauen tell us about drive shafts? A WHOLE HECK OFF A LOT !!! Very much grateful. Like the video. Good stuff. 2013 LR2 (US) shuddering badly on acceleration at highway speeds under load. Gets to established speed then perfectly smooth. Coasting, light aceleration, smooth. No noises! (Except low rumble of the shuddering vibrations) Light driving in parking lot no problems detected no noises, no grinding. Thinking some flex disc or coupling on drive shafts? Or should I try to test CV joints. Any experience from anywhere appreciated. Vielen Dank mein Freunde!

excited over prop-shafts, my kind of friend - great video!!!!!

As a mechanically inclined person who trusts science more than religion and wishful thinking I can comfortably say you guys make my day with every video I watch on this channel! Vielen Dank for showing and sharing your knowledge with us Kristian! And Vera - with you on the videos the cheerful picture is complete. Keep it up guys - I'm becoming a masive fan of your content. Oh - and by the way it was your channel that cleared my doubts wether I should get a 2.7 Now I know what my next car will be. So my E65 BMW goes for sale tomorrow :) gut gemacht ihr beide

I have to say: I learned a few things! Good timing, because it's almost time to make a custom driveshaft for my Cummins swapped GMC truck 🤠

A other great video. I had a great time watching and learning this stuff Greetings from Belgium Erik

Very interesting explanation - thank you!

Great video, it comes just in time for my disco 3, I'll wait for your return after you've done a few kilometres. Your explanations are excellent. If you give so many explanations on all the parts of the LR3 it promises a long and happy time.

Awesome video. I mentioned on the last video that I also just replaced my drive shaft. I bought an OEM because of everything you just explained👍🏻 Very cool, well done. Also, your son is a chip off the old block! Congrats.

Totally excellent explanation. Yes I learnt a lot of something.

Great I formation and facts especially about the wait factor of the drive shaft.

Great video it's good that your good lady is keen to learn. You must like the Landrover Discovery, I have 2 Defender 110's and 3 Unimogs. Love your tidy workshop 👍🏼

Got this problem on my 6 year old 53000 mile Disco 4. New one going in in monday

This is my favorite LR Time video. Interesting, funny. I love the bells and buzzers when Vera's talking, and Robin's craftsmanship is really cool. Is his stuff for sale?.

I guess the problem with the potential 616gmm imbalance is that this load will be transferred to the axle flange , which will cause increased wear on those bearings requiring early (and probably very expensive) replacement. Since this is all caused by the shaft having up to 0.135 mm of "play" could you shim or sleeve the shaft so it is exactly centred on the axle flange before you bolt it in? It wont fix the 200gmm residual imbalance but it could make sure the 416gmm is reduced as far as possible? Love all your videos, you are an excellent teacher and love the fact that Vera allows you to test her, you make a great team and I wish you all the best.

You know this is really one of your best videos, speaking as a fan. I learnt so much! If I remember right, you fixed the worn bearing with a replacement and had the fun of taking the joint apart, or was that somebody else? Your video is a great way to explain why when you design something from first principles you understand why, but if you copy something, you don’t have a clue. Keep up the good work.

Interesting video, the after market driveshaft we fitted had a grease nipple on the bearing.

Great info 👍

One of the most common failures on the disco 3. Easily noticeable though you do not need to take the heat shield off to see it.

Awesome explanation, you’ve missed your goal in life, you should become a teacher. German engineering at it’s best. Special thanks to Vera with her female explanation about the feelings and the rubbing, Things very important to both man, women and driveshafts. Can’t wait for the next one. Love you guys

You both rock! Vera is so patient and sweet and you master it all. Great to learn and know more things about our Lands and keep away from those chinese stuff. Keep it up!

think vera might be a bit bored,good vid i enjoyed it,thanks

Oh dear. My local garage recently changed our prop shaft and can't even tell us what brand it is. Maybe I should go down there and ask them all about their plunging joints and g/mm of unbalance. Fortunately, can't feel anything in the car so probably ok :D. Another great video, love watching you guys.

I'm having huge vibrations due to faulty rear propshaft, wich brand would u choose from between ? Eurodriveline NTY GSP Thanks for ur videos and advice

Physics 101 on drive shafts you ever thought of lecturing in a university as you made this episode very interesting and full of laughter

Great video as per usual, had the pleasure of replacing the Center bearing on my friends ‘05 RR sport last week, bit of a pain in the ass but very doable. Also had the pleasure of replacing rear ball joints, removing the body and replacing turbo while the body is off .....! 😬 great fun though as ye could imagine due all the LR repair adventure ye have ...!

How you doing? After see thia video I wonder about lubrication of the joints. Have you ever put grease in the moving joints of the shafts? Does the Discovery have maintenace plan for it?

Great explanation Guys, thouraghly enjoyed the video! Guess you must have worked in the automotive sector with that detailed explanation 🙄

Hello thank you a lot for your wonderfull work. I know mine is not a discovery but is a Range Rover L322 wich is a Land Rover. I had to replace the center bearing on the rear drive shaft, Then I noticed that the UJ is completly seized. This UJ's don't have a circlip to hold them in place not even the grouve for the circlip like the older LR's. This one are studded with stitches. Do you think that is possible to repalce the UJ? Maybe with a weld drop? Or is a bad idea?

I am a disco 3 owner and maintainer. Love your videos, especially the engine build. I have done many jobs on mine most recently the dual mass flywheel. I must ask you why not just change the centre bearing on the lovely gkn propshaft?

I follow a channel where 1 older irish pair documents their things - for multiple reasons. I was 1 day caught by surprise when the man of that pair displayed unexpected drumming skills. Similar feeling to when observing cheetah to stop chase down his prey in order to train the little waltz he memorized yesterday. Same here - I am really taken by surprise by what you are revealing here, Christian. I know you are car engineer (or designer or...). Still - all these awesome details were surprising. And very well explained. +1.

we love watching you guys we run a disco 3 as well but you can always rely on z Germans to go all scientific keep up the great vids thank you

Thank you for this nice explaining video. Where did you got that Chinese shaft from?

Would a shaky or wobbly steering wheel at 50 miles hr mean that the front prop shaft is bad? Any help would be appreciated 🇬🇧

I hope I never had to replace mine, but I love the vids and content you make! Shame the centre bearing just can't be replaced, so you can keep the OE shaft..

Are you serious, no way anyone could do a 26min driveshaft vid..... 26min later..... WOW 😮 how interesting!

Awesome as always. Question. Why did you not just replace the bearing or easier use a two piece rubber mount that can be put on without removing prop. As you found out, the actual bearing & UJs were all good. I ask as my rubber has a small split so looking to do shortly.

some Australian Ford Falcons had aluminium tailshafts (as we call 'em) and were speed limited to 180kph, otherwise they have a tendency to explode catastrophically

Land Rover L319 LR3/4, L319 Discovery3/4, L320 Range Rover Sport Driveshaft Center Support Bearing Carrier Upgrade Nice upgrade without buying new drive line much cheaper than buy new drive line

Hello again. At the end, how you correct the offset of the center lines?? Thanks

Can you not use a DTI on the rear UJ and check the run out before tightening the bolts?

You are now professor land rover

Nice video but you can just buy a center hanger bearing replacement and keep your oem drive shaft its a easy process if you have some tools my transmission just got rebuilt shop found my center hanger bearing or rubber holding on the bearing worn out he bought a surf drive shaft with good center hanger bearing, I wished he called me b4 replacing it replacing center hanger bearing very easy. Job

Think my other car has a carbon fibre driveshaft. You have a lot of knowledge thanks for sharing. Is this your profession design engineering ?

Excellent! Why do you not attempt to fix the old one?

Very interesting video thank you both, particularly for someone like me who has just replaced my rear prop with an aftermarket part on my beloved disco 4. However, would it be fair to say that you focus on the worst case scenario here? As you say, comfort depends on misalignment of the rotating mass, and it depends on the vector multiplication of the cumulative imbalance including both mounting points. The offset you measured for the mounting to the differential should probably be /2, same for the transfer box since you assume maximum possible misalignment currently, and you are assuming oem is perfect and comparing to it as if it were a perfect part, which is not really true. I admit, i have vested interest in this being the case!! 😅 But would that be fair to say? Thanks

Never realised how the operation of a prop shaft could help the long winter nights just fly by😀

Is it cheap and possible to have this out of specification size issue corrected with weld and lathe turning / cutting? I suppose the answer relies on the item purchase cost difference, plus the engineering fee to bead weld and turn down to the correct size / fit; plus availability of this engineering work locally.

Christian a quick question if I may, why not just replace the center bearing (LR037028 from RockAuto in not so USA). love the channel cheers Paul Victoria BC

Wow you two just amaze me. Love watching your uploads. Thank you

Hi l have been following the pair of you since day 1 - l have a Disco 3 where did you buy your prop shaft? Although English l live in France since Brexit buying parts from the U.K. for my LR has now become just so expensive - lm getting a serious short judder when trying to climb up my steep drive lm really hoping it’s not torque converter or a diff - car runs perfect on the straight - lm hoping it’s the prop shaft joints car has been well serviced regular and gearbox flushed at 140k miles

Hi I think you do a great informative presentation on RU-vid, I am interested in the Chinese prop shaft you bought and fitted , is it still working ok with no issues and if so could you please give me a link and part number to the site you bought it from . Kind regards Gary

Hello sir I'm Adel from Jordan (Middle East ).. could you right all what you explained about driveshaft in these video to be able shown under the screen ..because I want to write it to note book and check all your lesson's by back to my book in mathematics' and physics I have some degree in communication's .. when you talking about resonant frequency I know these what mean .. thank you sir .

I was really hoping you were going to introduce the other bearing on the bench as a retro fit on the OEM shaft.

Danke für das Video... Du bist woh ein Fachmann für die Kardanwellenfertigung 😁 Bei mir ist nun auch das Mittellager auch defekt. Ich wollte erst eine Kardanwelle aus dem Zubehör kaufen. Nun habe ich die OEM gekauft - da ich mehr sicherheit haben wollte. Allerdings bin ich unsicher ob diese auch tatsächlich immer noch sehr gut ist. Du hast erwähnt, die wird nun auch nicht mehr in England gefertig - sondern in Polen. Hoffentlich taugt das weiterhin... Ich werde diese nächste Woche einbauen, dann weiß ich mehr...

Hello. Without the Rubber didnt the car whable? Mine is making whable and i think its propshaft but if you say that you didnt notice the missing Rubber i am Lost. Best regards

Thanks for great informative video, but,why,why do they put the flimsy rubber suspension at the joint? They all fail, ruins the longevity of the prop shaft, I replaced mine for £39, still ok after one year. Thanks again you two

👍

Do you know about front prop shaft replacment??

Hi Christian and Vera, just a quick question why not just replace the center bearing for £25?? Great explanation of drive shafts

Do you have the link for the part??

Just buy a centre bearing and fit it to the original shaft. That way you have a spare prop shaft and the bearing in UK is around £38 only.

Looks like you are gaining 100 subscribers a week to your channel.

Ihr macht wirklich super Videos Kompliment allerdings hätte ich mir einige auf Deutsch gewünscht da die meisten Videos über den LR 3 eh schon Englisch sprachig sind und es nur sehr wenig deutschsprachig gibt ansonsten echt super eure Videos Wo habt ihr denn die Kardanwelle bestellt ?

Would it be possible to just pull the u joints and swap out the original flange of the LR and install it on the Chinese driveshaft?

i build alu yachts, the price of marine grade plate is 5 to 7000 tonne, it is now cheaper that steel