Member Since: 18 Oct 2016
Location: Pemrokeshire
Posts: 585
Rear prop universal joint size
Hi all,Quick question..am i right in thinking that it's a 75mm cup size on the universal joint on the rear propshaft of a 05 disco 3?
Feel free to correct me or point in right direction!Going to do rear bearing so may as well do uj at same time.And yes I know o should just replace the whole shaft instead but I'm a sucker for old school repairs!
25th Nov 2017 4:05 pm
rrhool
Member Since: 28 Aug 2014
Location: Norfolk
Posts: 4400
You can't, as far as I'm aware, change the rear UJ. The joints are 'staked', there are no circlips to allow removal.
I changed my rear prop recently, and will send the old one to a specialist to replace the UJ. I'll keep it as a spare.Richard
D3 SE 2007. Triumph 2.5Pi 1973. Ferguson TEA20 1948.
Discovery 2 4.0 ES 2001- Gone
Discovery 1 300Tdi ES '95 - Gone
Range Rover Classic '79 - Gone
25th Nov 2017 5:08 pm
timmyt79
Member Since: 18 Oct 2016
Location: Pemrokeshire
Posts: 585
Ah dab...thanks for the info...looks like o have to save myself a lot of time and tears and just do a straight swap for a new one then!😂
25th Nov 2017 6:01 pm
L319
Member Since: 14 Dec 2013
Location: Herefordshire
Posts: 2080
Staked ones can be changed but one needs to ensure the final position is correct, doable but not easy without special equipment.
25th Nov 2017 7:17 pm
timmyt79
Member Since: 18 Oct 2016
Location: Pemrokeshire
Posts: 585
Had a look at few vids reg staked uj' s and as you say it can be done but it is a pain in compared to standard.I assume that you can replace with standard uj's and not staked or are the groves for circlips not present?
25th Nov 2017 10:35 pm
L319
Member Since: 14 Dec 2013
Location: Herefordshire
Posts: 2080
No circlip grooves, one of the points of staking, cheaper to make but not repair.
26th Nov 2017 10:09 am
bronjen
Member Since: 31 Mar 2015
Location: Derby de2
Posts: 141
D3 & 4 Rear propshaft
Quick question in regard to D3 &4 rear prop-shaft, why does one need the centre support bearing and a two piece prop-shaft, when both rear differential and transfer box are fixed to the chassis and have seen longer prop-shafts on other vehicles where the rear differential is supported by leaf springs?
Has any one replaced the rear two piece prop-shaft with a single unit?
R
26th Nov 2017 9:58 pm
rrhool
Member Since: 28 Aug 2014
Location: Norfolk
Posts: 4400
I imagine JLR had torsional vibration issues during development, and had to cure it with a split propshaft.
There is no business sense in fitting a complicated propshaft with 2 CV's, 1 UJ & a centre bearing.
I thought exactly the same. You would have thought a single piece prop with a sliding joint would have done it.
My only other thought was that the gearbox and rear diff are too well aligned, and UJ's/CV's dont like running dead straight, as there is no movement in the rollers, and the bearing surface will wear more quickly. So they put a bend in the propshaft to allow rotation in the CV / UJ?
Only guessing, I don't have any inside knowledge! Richard
D3 SE 2007. Triumph 2.5Pi 1973. Ferguson TEA20 1948.
Discovery 2 4.0 ES 2001- Gone
Discovery 1 300Tdi ES '95 - Gone
Range Rover Classic '79 - Gone
27th Nov 2017 10:07 am
bronjen
Member Since: 31 Mar 2015
Location: Derby de2
Posts: 141
prop shaft replacement
Ok thanks for the thought, makes me want to put a single piece prop on, may go visit my local custom prop guy in Notts and ask the question!
27th Nov 2017 11:08 am
RickyAtHere
Member Since: 05 May 2018
Location: Alberta
Posts: 37
quite curious on have you ever achieved that?
15th Jun 2018 3:26 am
bronjen
Member Since: 31 Mar 2015
Location: Derby de2
Posts: 141
Never got round to it, found a damaged D3 with a recent new prop on it so got that plus a few other bits
15th Jun 2018 2:42 pm
RickyAtHere
Member Since: 05 May 2018
Location: Alberta
Posts: 37
That's sounds good, here in Canada, a rusty used one would cost at least the same price as ordering one from the England...
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compared to standard.I assume that you can replace with standard uj's and not staked or are the groves for circlips not present?
