Suzuki Coils

[djd2]

Where can you buy some 4" lifted coils for a 96 sierra.Having trouble trying to find some.

Cheers

Daniel

[rustyzook]

have you tryed BBM? they have everything!

[grimbo]

I think you will run into more problems than just finding 4" coils. The coily Sierras don't take well to lifts and 4" is alot of lift that will need alot of work to ensure it works properly. Control arms will need addresssing as to to shocks and mounts for them. You may be straying into a whole area of hurt to get them to work.

We had a guy in our club running a 2" lift and a body lift to run 31" simexes (which measure about 32") and that required a fair bit of mucking around to make sure they worked properly.

Why do you want 4" coils?

[djd2]

I just thought that a 4" lift would be easy like a patrol or cruiser.Obviously not.Might just go with a 2" lift on the coils and a 3" body lift.Want to fit 31's or possibly 32's.

[Trogdor]

yeah to get that much lift i used 50mm raised rear honda crv springs from pedders all round. I made new control arms with the castor correction designed in from 10mm wall tube. Replaced strut towers with jimny upper mounts and vitara rear diff coil seats, whihc i had to modify the right hand one to keep the car level because without the correction in the spring they lean to the right. Also custom shock mounts for the diff mounts. You can use those springs to get that much lift out of the rear without changing the mounts. They are a very nice spring they are suited well to the sierra.

My car doesn't have truckloads of flex but handles a billion times better than standard and flexes way better than standard and rides way better than standard.

[GRPABT1]

Geez sounds like there is a bit of work involved with the coily sierras to get lift.

[Trogdor]

not really you can run 2 inch springs and 2 inch body lift and you don't have to change anything, if you want to keep our standard control arms and run bigger lift you would have to make up castor correction plates or get correction bushes, same as the 80 series cruiser and well handling patrols.
You can also get custom struts made with coil seats 50mm further up the shock and 2 inch lifted springs to get 4 inch if you don't want to change the mounts. you need someone to make the struts if you want longer ones anyway. That means you can use the springs i used in the rear to sit level.

[Trogdor]

i just went the jimny mounts because i wanted some beefier springs in the front and i didn't really like the struts as standard...

[Liam@bbm]

not really you can run 2 inch springs and 2 inch body lift and you don't have to change anything, if you want to keep our standard control arms and run bigger lift you would have to make up castor correction plates or get correction bushes, same as the 80 series cruiser and well handling patrols.
You can also get custom struts made with coil seats 50mm further up the shock and 2 inch lifted springs to get 4 inch if you don't want to change the mounts. you need someone to make the struts if you want longer ones anyway. That means you can use the springs i used in the rear to sit level.

So you'd have 4 inches LESS down travel in the front...a two inch spring is effectively pulling out the strut shaft 2 inches further, the raised seat height lifts it 2 inches more, the shafts not getting any longer -result is 4 inches less downtravel on an already marginal shaft. When you top these things out they fail quickly.
A marginaly better (but still not good) mod would be to move the lower mount downwards ( instead of lift the seat up)
The problem is still going to be the same. The coily front end wont support a lift this big, the angles on a lifted to strut are two high- its side loading the strut shaft, the upper mount cant come in far enough, the lower cant go out far enough. The geometry is marginal at standard height, struts aren't meant to be sideloaded. the chassis is thin and the suspension points are only just strong enough for a standard setup.
Don't believe me? ask any major suspension supplier what happened to the big lifts for coillys they all had availlable a few years ago...all withdrawn from the market....one major suspension supplier had to replace a guys whole chassis!

[Smithy's Suzi]

hey how much are brand new coil suspension kits worth. tough dogg brand

[Liam@bbm]

They don't do them, as described above, they won't touch them. Standard height struts and replacement rear shocks are available from tough dog. Tough dog won't do longer struts or taller springs. They're very touchy on warranties on these as well- cant blame them, theres always some rocket surgeon who wants to screw an extension onto them...

[GRPABT1]

Ouch man, some harse but wise info there Liam. I'm soooo glad I bought a leaf sprung now.

[Trogdor]

So you'd have 4 inches LESS down travel in the front...a two inch spring is effectively pulling out the strut shaft 2 inches further, the raised seat height lifts it 2 inches more, the shafts not getting any longer -result is 4 inches less downtravel on an already marginal shaft. When you top these things out they fail quickly.
A marginaly better (but still not good) mod would be to move the lower mount downwards ( instead of lift the seat up)
The problem is still going to be the same. The coily front end wont support a lift this big, the angles on a lifted to strut are two high- its side loading the strut shaft, the upper mount cant come in far enough, the lower cant go out far enough. The geometry is marginal at standard height, struts aren't meant to be sideloaded. the chassis is thin and the suspension points are only just strong enough for a standard setup.
Don't believe me? ask any major suspension supplier what happened to the big lifts for coillys they all had availlable a few years ago...all withdrawn from the market....one major suspension supplier had to replace a guys whole chassis!

ah ok cool i didn't think about it that way, thats why i ended up swapping in the jimny mounts because the struts just weren't right... but i was not sure why sounds like thats the reason lol.

i have ripped out strut mounts and cracked trailing arm mounts a little reinforcing has gone along way to repair that though.