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3818 Posts in 1183 Topics- by 2192 Members - Latest Member: mariodea

February 10, 2012, 04:08:44 PM
Maintenance IssuesSpitfire - GT6Rear suspension sag GT6 and Spits
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Author Topic: Rear suspension sag GT6 and Spits  (Read 1224 times)
bsz
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« on: October 01, 2008, 03:02:44 PM »
I have a '73 GT6 with a squatting rear end, and I have seen this problem on many cars both GT6 and Spits, and I have rear the posts here, but have not seen a real answer.
My car squats in the back, bad enough that on sharp turns the rear wheels occasionally rub the tops of the wheel wells. 
I have replaced the leaf spring and it's bushings, with no change, replaced wheel bearings, no change.  I do not what to switch to air adjust shocks to fix this problem, and...
Having owned this car since it was new, I can verify that it hod no noticeable squat to begin with. 
So, the question is (are), will new standard shocks fix it?  Or... can worn bushings in the trailing arms (the only ones I have yet to change) to blame?
I suspect the bushings, as I don't think that shocks can/should affect ride height.
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herald948
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« Reply #1 on: October 02, 2008, 12:00:39 PM »
What replacement spring did you use? Some vendors might only supply one Spitfire swing-spring to fit all Spitfires and GT6s, which likely isn't up to the task of supporting the heavier GT6.
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Andrew (Andy) Mace, lifelong Triumph owner! Smiley Please check out the North American Triumph Sports 6 and Herald Database site at http://triumph-herald.us
bsz
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« Reply #2 on: October 02, 2008, 01:38:01 PM »
It was several years ago.... I purchased the leaf spring from British Victoria Ltd, and it is specific to the KF20001- serial number, which the car is, though I don't know the number off-hand. 

Replacing the spring made no appreciable difference form the original, and cosmetically it was an exact match to the original. 
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bsz
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« Reply #3 on: October 20, 2008, 02:02:24 PM »
So the leading answer is that it has the wrong spring? 
The original spring sagged with age and the replacement happens to be weak enough to sag about the same amount?
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roze
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« Reply #4 on: October 24, 2011, 04:37:08 PM »
Quote from: bsz on October 01, 2008, 03:02:44 PM
I have a '73 GT6 with a squatting rear end, and I have seen this problem on many cars both GT6 and Spits, and I have rear the posts here, but have not seen a real answer.
My car squats in the back, bad enough that on sharp turns the rear wheels occasionally rub the tops of the wheel wells. 
I have replaced the leaf spring and it's bushings, with no change, replaced wheel bearings, no change.  I do not what to switch to air adjust shocks to fix this problem, and...
Having owned this car since it was new, I can verify that it hod no noticeable squat to begin with. 
So, the question is (are), will new standard shocks fix it?  Or... can worn bushings in the trailing arms (the only ones I have yet to change) to blame?
I suspect the bushings, as I don't think that shocks can/should affect ride height.

 

I rebuilt my spring using the following method.  It was easy to do.  It seems to resolve the issue you are referring to:

http://www.triumphspitfire.nl/rearspringpads.html

Ed

PS - Did you change the wheel bearings yourself? 
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