Matt1631 Posted July 21 Share Posted July 21 Hi all, I have a 1969 MK3 Spitfire, it sits low on the offside rear by about 2cm. I've had it on the ramps and all the suspension components look fine and measure equally to each other. The lead spring is the original and looks in good condition, could it just have altered over the years causing the slight sag or dies anyone have any other suggestions please? Quote Link to comment Share on other sites More sharing options...
glang Posted July 21 Share Posted July 21 Theres been talk that the front anti roll bar can cause this problem - seems a long shot but might worth investigating... Quote Link to comment Share on other sites More sharing options...
Clive Posted July 21 Share Posted July 21 Try jacking the car up under the diff, as central as possible. Just get the wheels off the ground. Then check the front springs are equal. Next, do the same jacking the car under the front crossmember dead central. Check the rear. Often the issue is at the othetr end of the car. Dio make sure all that is done of perfectly level ground. Ideally measure to chassis points rather than body. Quote Link to comment Share on other sites More sharing options...
Matt1631 Posted July 21 Author Share Posted July 21 1 hour ago, glang said: Theres been talk that the front anti roll bar can cause this problem - seems a long shot but might worth investigating... Thank you Glang, I'll have a look Quote Link to comment Share on other sites More sharing options...
Matt1631 Posted July 21 Author Share Posted July 21 56 minutes ago, Clive said: Try jacking the car up under the diff, as central as possible. Just get the wheels off the ground. Then check the front springs are equal. Next, do the same jacking the car under the front crossmember dead central. Check the rear. Often the issue is at the othetr end of the car. Dio make sure all that is done of perfectly level ground. Ideally measure to chassis points rather than body. Thank you Clive, appreciated Quote Link to comment Share on other sites More sharing options...
glang Posted July 21 Share Posted July 21 Of course theres nothing to say a rear spring cant go weak on one side. Uneven tempering or a broken leaf could do it for example... Quote Link to comment Share on other sites More sharing options...
Matt1631 Posted July 22 Author Share Posted July 22 13 hours ago, Clive said: Try jacking the car up under the diff, as central as possible. Just get the wheels off the ground. Then check the front springs are equal. Next, do the same jacking the car under the front crossmember dead central. Check the rear. Often the issue is at the othetr end of the car. Dio make sure all that is done of perfectly level ground. Ideally measure to chassis points rather than body. Thanks Quote Link to comment Share on other sites More sharing options...
Matt1631 Posted July 22 Author Share Posted July 22 12 hours ago, glang said: Of course theres nothing to say a rear spring cant go weak on one side. Uneven tempering or a broken leaf could do it for example... Thank you, I can't see any of the leaves broken but wondered if it wasn't quite central Quote Link to comment Share on other sites More sharing options...
Matt1631 Posted July 22 Author Share Posted July 22 14 hours ago, glang said: Theres been talk that the front anti roll bar can cause this problem - seems a long shot but might worth investigating... 👍🏻 Quote Link to comment Share on other sites More sharing options...
glang Posted July 22 Share Posted July 22 1 hour ago, Matt1631 said: Thank you, I can't see any of the leaves broken but wondered if it wasn't quite central The spring has a central lump that must fit in a corresponding hole in the top of the diff so should sit right.... Quote Link to comment Share on other sites More sharing options...
Amy Wade Posted July 22 Share Posted July 22 It could be the spring buttons have worn down or came out on one side. Quote Link to comment Share on other sites More sharing options...
Dannyb Posted July 22 Share Posted July 22 Try jacking up front and back and measuring as described previously so you know what end to investigate. Danny 1 Quote Link to comment Share on other sites More sharing options...
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