thanks in advance for any advice or help..cheers

Gwagensteve wrote:You are missing part of the point.
Spring lift does not allow you to fit a bigger tyre. Even if the tyres clear with the car on level ground, when you flex the car up on an obstacle the tyre can still move up as far as it could before so the tyres will still hit.
A 2" BL means that wherever the suspension is, you still have 2" more room for the tyre to fit.
It is also possible to space your bumpstops down to increase tyre clearance (and this allows the fitment of longer shocks, the only way to increase wheel travel)
Tall spring lifts tend to make sierras behave badly. to hold a high arch the spring rate has to be quite high so the car rides badly and doesn't flex.
A 2" body lift will almost clear 32's by itself.
PS I don't really recommend resetting stock springs. The ride will be poor and the cost will be about 1/2 of good quality springs like OME Dakar.
Steve.
as well as risking shacke reversal and spring breakages, shackles need to be around 15deg thereabouts depending on factory spec as it forces if you will movement in the spring particularily in the early stages of the spring flexing ie on road over small bumps etc it is an integral part of the suspension set up working correctly, ride is one thing, but by forcing the system to work differently you are effectily promoting bend and snappage forward of the axle particulartily if you hit a pot hole etclay80n wrote:Gwagensteve wrote:You are missing part of the point.
Spring lift does not allow you to fit a bigger tyre. Even if the tyres clear with the car on level ground, when you flex the car up on an obstacle the tyre can still move up as far as it could before so the tyres will still hit.
A 2" BL means that wherever the suspension is, you still have 2" more room for the tyre to fit.
It is also possible to space your bumpstops down to increase tyre clearance (and this allows the fitment of longer shocks, the only way to increase wheel travel)
Tall spring lifts tend to make sierras behave badly. to hold a high arch the spring rate has to be quite high so the car rides badly and doesn't flex.
A 2" body lift will almost clear 32's by itself.
PS I don't really recommend resetting stock springs. The ride will be poor and the cost will be about 1/2 of good quality springs like OME Dakar.
Steve.
And to further this, by re-setting stock springs, or getting large lifted springs, you end up with a near verticle or even past verticle shackle angle, that makes ride quality and handling worse again. Stay well away.
Layto....
they don't have to be but generally the cheaper ones are, as it is easier to just make them stiffer to hold the shape.love_mud wrote:I have never understood why eveyone says that lifted springs have to be stiffer .. why does the car weigh more if it is 3 inches higher ?
A lifted spring if made properly need not be any stiffer than a zero lift spring.
No, actually I disagree, I think they do have to be stiff and here's why.grimbo wrote:they don't have to be but generally the cheaper ones are, as it is easier to just make them stiffer to hold the shape.love_mud wrote:I have never understood why eveyone says that lifted springs have to be stiffer .. why does the car weigh more if it is 3 inches higher ?
A lifted spring if made properly need not be any stiffer than a zero lift spring.
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