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Wales
by Joske Vermeule, September 1
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Most Online1,063 Jun 14th, 2026
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Joined: Oct 2012
Posts: 125
L - Learner Plates On
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OP
L - Learner Plates On
Joined: Oct 2012
Posts: 125 |
I am thinking it’s time to replace the rear springs as they are now 25 years old . The car is a 97 plus 8 , the recommendation from the parts supplier is to fit 4 leaf springs , I believe the car has more leaves than that , any thoughts or comments ? Cheers Dave
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Joined: Aug 2017
Posts: 504 Likes: 2
Talk Morgan Regular
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Talk Morgan Regular
Joined: Aug 2017
Posts: 504 Likes: 2 |
If your car has six leaves (if in doubt, just count...) it will have a harsh ride, but on the other hand they will have more resistance against old age and sagging. So the first question is if replacing the springs really is needed. The answer would depend on age, mileage, visual signs of sagging plus how you feel the suspension is performing. With 25 years and perhaps a substantial mileage it may well be that a change is due. What is recommende by most is the four leaf springs intended for the four seater, which is said to be a good compromise between softening up the ride and being stiff enough to ensure a good handling. My car has six leaves and a quite harsh ride, and I have driven a four-leaf 4/4 with two people + luggage which I found way to soft. So when the day comes, I will try to compromise by searching for four-leaf springs, but with the added stiffness from the spring intended for the four seater.
Robbie the Norseman 2004 V6 Roadster Sherwood green
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Joined: Jul 2019
Posts: 5,460 Likes: 475
Charter Member
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Charter Member
Joined: Jul 2019
Posts: 5,460 Likes: 475 |
Robbie seems to have covered everything, though I guess GoMoG will have a fair amount of data on spring choices..? I seem to remember that over the years there was some sort of problem with sets of "weak" springs being fitted to new Morgans, where the drivers side would sag more than the other side and in a short period of time..? I think there was chat that some springs may have been sourced from India and of suspect quality, though my memory is not the best.. I have six leaves on my springs, and have only ever driven that set-up, which was chosen as my +8 was built with touring in mind and covered many a mile fully loaded with a heavy case sitting out on the rack.. Have to admit when I bought into the idea of a Morgan, comfortable springing was not high on my list of reasons for acquisition... (-: I have read of all sorts of efforts in suspension modification, and fixing extra ironmongery to the Trad in an effort to apply more modern expectations of comfort, and is perhaps to be expected as we age/evolve.. My springs are at least 20 years old, though perhaps only circa 30k miles of usage, but show no obvious signs of sagging and the Mog sits pretty evenly. I guess within the limits of restricted travel of the axle given the the depth and number of of pot holes on our roads, comfort in a Trad would seem to be a relative term.. (-: Good luck in your choices. 
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Joined: Jul 2011
Posts: 1,246 Likes: 30
Has a lot to Say!
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Has a lot to Say!
Joined: Jul 2011
Posts: 1,246 Likes: 30 |
Mine lasted 10 years & 50000miles. When they started to sag, they lost an inch of ride height in a 12 month period. Main thing was how their tension had dissipated. A lot more banging from the back end. Replaced with 4 leaf GME springs. www.gmesprings.co.uk Also the front springs had to be changed for similar reasons. (Oh just to add. I also had Antitramps & panhard fitted. The antitramps help protect the springs & stop them flexing in the wrong place. )
Last edited by IcePack; 10/05/22 08:07 AM.
4/4 Ivory 4.1:1 axle, Mercedes A200 AMG
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Joined: Nov 2015
Posts: 8,696 Likes: 498
Just barreling along Needs to Get Out More!
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Just barreling along Needs to Get Out More!
Joined: Nov 2015
Posts: 8,696 Likes: 498 |
Dave W wrote an excellent article on rear springs somewhere on TM
Jon M
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Joined: Aug 2021
Posts: 571 Likes: 91
Talk Morgan Regular
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Talk Morgan Regular
Joined: Aug 2021
Posts: 571 Likes: 91 |
Our 3.7 Roadster is in the process of replacement rear springs. The car is only 6 years old, but the rear springs show contact witness marks where the springs pass through the wood rear bulkhead, in addition, the inner wings show witness marks where they have been hit by the axle. We have not had the car that long, I noted the spring issue when fitting Rogs excellent rear spring rebound rubbers, I could not adjust them for the correct clearance on the drivers side. Aftter much measuring it was apparent that the drivers side rear spring was quite sagged, so a replacement pair of springs were needed.
Last edited by Davetherave; 10/05/22 08:45 AM.
Dave Plus Six "Squeak" Roadster departed. 1936 BSA Empire Star Q8. 1935 BSA W7-35. 1938 BSA M20
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Joined: Sep 2016
Posts: 1,464 Likes: 99
Has a lot to Say!
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Has a lot to Say!
Joined: Sep 2016
Posts: 1,464 Likes: 99 |
In intended replacing the springs last winter but didn’t get round to it. Never figured out what would be the best springs either. Not that expensive if I remember correctly just a faff to put on. Still very do-able though.
2012 Plus 4 in Sport Green. Much comfier than the Plus 8!
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Joined: Aug 2011
Posts: 2,583
Talk Morgan Expert
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Talk Morgan Expert
Joined: Aug 2011
Posts: 2,583 |
I replaced my faulty batch rear springs on my 4/4 Sport with four seater springs. The difference in ride quality was very apparent and a great improvement. That said it is a very light car.
2010 4/4 sport - le mans green
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Joined: Dec 2008
Posts: 22,370 Likes: 354
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 22,370 Likes: 354 |
DaveW '05 Red Roadster S1 '16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: Nov 2018
Posts: 6,675 Likes: 441
Talk Morgan Sage
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Talk Morgan Sage
Joined: Nov 2018
Posts: 6,675 Likes: 441 |
A fabulous guide - a great help when I changed mine.
"Y mae dafad ddu ym mhob praidd" 1972 4/4, 1981 MGBGT, 1984 FLHT1340, 1980 XLH1000, 1990 ZX10
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