Shackle mounts.

[BlueSuzy]

If i was to move the shackle mounts(done sum search).
I will get additional flex right?

Now i was thinking to keep my 2"king springs, but because of my massive shackles i think i dont get as much movement then stock cos the spring is stretched full and shackle is on a slight angle.

So its ok for the rear, move it forwards an inch at a time to adjust...
But for the front? Would it be ok if i moved the shackle mount back? So it sits the same height as the rear?

my shocks are longer then normal, or the commodore ones i think. 2" lift they bottom out, hence why went for long shackles cos i didnt know what to do. Trying to sort it out.

Thanks 4 any help

[lilzook]

Im about to fit 50mm ext shackles on the front of my sierra (sitting a bit low since i fitted my bar) and this is what i came across:

(note sure how right it is..)

Extended shackles are only a good mod when used with longer leaves. You may get lift but I don't think thats the point. If they are straight up and down they wont improve flex. They need to fitted with longer leaves or move shackle mounts so they are on an angle.

[alien]

you want your shackle at as close to 45* as possible, this way youll have equal compression to extension out of the shackle alone... if you're going to relocate your spring mounts, might as well do RUF or something at the same time and get more flex =)

Keep in mind - if you do this it wont be legal unless you get an engineer to sign off on the welds etc...

[BlueSuzy]

50mm might be ok.Mine are way longer...




And this is the latest side on shot..


Hard to see in the last pic, they arnt fully vertical, they used to be but with springs being played with they have sagged alittle, but still same prob.

[Spike_Sierra]

you want your shackle at as close to 45* as possible, this way youll have equal compression to extension out of the shackle alone... if you're going to relocate your spring mounts, might as well do RUF or something at the same time and get more flex =)

Keep in mind - if you do this it wont be legal unless you get an engineer to sign off on the welds etc...

i have found (with experiments) that 45 isnt the ideal angle as the sierra tyre/diff combo isnt enough weight to pull the spring down to a nice curve.

i have moved by front springs rear mount back about 20mm to give the shackle angle less angle so its about 60-70*. and it flexes alot better.

[alien]

its not fully stuffed into the wheel well, but my springs invert on compression and droop like all hell... theres definitely enough weight in a zuk to "work" the leaves =)

[NIK]

My front shackle at rest is the same as ufo,s at full stuff. It flexs decent but shocks run out of travel before full droop. Spoke to a spring builder and he said my shackle angle isnt ideal but seems to work for me.
Nik