Front parabolic springs. 1977 SWB

I think the book measurements are with the spring flat, which is hard to achieve. My book says 920mm.
Terry

Quote:

---

Originally Posted by Gusto1971

Simple problems have simple solution. The spring (despite correct part code) is too short.
This morning I took one off - for the record the center pin is equidistant to both ends. I measured the spring for a total length of 875mm unladen.

This inspired me to read the repair manual. At the very back of section 4 are the specifications for the springs. Front springs are suppose to be 920mm (36.25 inches).
I am confident that this is the problem.

Can anyone recommend a Qld based supplier who would have the right length?

Photos to follow.

---

Quote:

---

Originally Posted by rover-56

I think the book measurements are with the spring flat, which is hard to achieve. My book says 920mm.
Terry

---

I meant to add that your springs would come close to 920 if they were flat.
Terry

Quote:

---

Originally Posted by Gusto1971

https://uploads.tapatalk-cdn.com/201...b5faa689b1.jpghttps://uploads.tapatalk-cdn.com/201...d921fce14a.jpghttps://uploads.tapatalk-cdn.com/201...bbaf793fbd.jpg

---

Your prop shaft is on ass about too.

Cheers, Mick.

Quote:

---

Originally Posted by mick88

Your prop shaft is on ass about too.

Cheers, Mick.

---

I'm not aware there is a correct orientation but I always put the slip joint to the front , be it front or rear shaft .

I understand in the unlikely event the joint separates it will be safer if its the other way around but thats is only likely to happen in an incorrectly set up lifted & highly modded &/or unroadworthy vehicle.

Quote:

---

Originally Posted by goingbush

I'm not aware there is a correct orientation but I always put the slip joint to the front , be it front or rear shaft .

I understand in the unlikely event the joint separates it will be safer if its the other way around but thats is only likely to happen in an incorrectly set up lifted & highly modded &/or unroadworthy vehicle.

---

I think there is a rule for this, but I don't know what it is.
Early series WSM pics show the slip joint to the rear, later ones at the front.
Terry

Quote:

---

Originally Posted by goingbush

I'm not aware there is a correct orientation but I always put the slip joint to the front , be it front or rear shaft .

I understand in the unlikely event the joint separates it will be safer if its the other way around but thats is only likely to happen in an incorrectly set up lifted & highly modded &/or unroadworthy vehicle.

---

On the front shaft if the sliding joint is to the front it is more prone to damage, ie ripping the rubber boot etc.

Cheers, Mick.

My understanding is that having the sliding member at the front is correct, as per both the parts manual sketch and the workshop manual instructions.

I fitted parabolic springs all round last year to my 1976 88'' and you are correct , the front is a cluster f***k, I was told that before purchasing and the shop sent the front springs away to have about 30mm of ride hieght taken out of them. They took ages to settle down an still sit abit high compared to the back, handles well but still not as smooth as my stage 1

Quote:

---

Originally Posted by mikek

I fitted parabolic springs all round last year to my 1976 88'' and you are correct , the front is a cluster f***k, I was told that before purchasing and the shop sent the front springs away to have about 30mm of ride hieght taken out of them. They took ages to settle down an still sit abit high compared to the back, handles well but still not as smooth as my stage 1

---

Thanks for the response. Where did you send the to have the ride height taken down?

In NZ so wont be much use,any good auto spring repairer should be able to help you
Spring length fitted is about 880mm andthe wheel sits in about the same place as your pic, not in the middle of the wheel arch shackel point straight down