jswizz

[IMG][/IMG]
This is the shackle touching the frame .rancho springs the 40440's?and as I ride down the road you can hear them rubbing the frame ,when I flex out the do go down like normal. ANY HELP OR THOUGHTS WOULD BE GREAT


85 4RUNNER solid axle
2" body lift 3" suspension 33's

4Crawler

iTrader: (3)

Simple answer is stock shackle is too short for those springs:
- http://www.4crawler.com/4x4/ForSale/Shackles.shtml#FAQ2

My original fix was to make some slightly longer shackles:
- http://www.4crawler.com/4x4/CheapTri...l#Applications

There are also the offset or "banana" shackles that are both longer and bent in the middle to clear the body mount bracket.

My final fix was to move the front spring hanger forward:
- http://www.4crawler.com/4x4/CheapTri...ringHangerDrop

dropzone

iTrader: (6)

Aren't 44044 jeep springs? Flex like crazy from what I remember but are longer than stock and needed the front mount s to be moved forward
47" long vs. 45" for stock front spring

jswizz

Thanks, 4crawler I was undeerr the impression that they were direct fit . got the springs from a crawler bud and he said bolt up . I was hoping to avoid longer shackles becaus. height issues , driveline etc..
how long of a shckle would you say ? Oh just looked at your site and answered that Question THANKS
Dropzone those are the flex springs not sure of jeep though. I have been gathering used parts for months.

4Crawler

iTrader: (3)

Read my post and it'll tell you how to find out how much (involves a bit of math), or follow my rule of thumb as far as spring length vs. shackle length.

And you may find very little ride height change with front shackles. I put 1.5" longer shackles under my '85 and saw exactly 0" of lift, but that was fine as all I wanted was the caster angle change.

You can also run a wide body shackle:


That style has straight sides, the full width of the frame and then use spacers at the bottom to reduce the width to that of the spring eye bushings. Might still need to notch out a little of the bottom of the body mount bracket, but the shackle will clear the frame by design since it is wider than the frame. You may still need a little extra length because the next limit you hit is the wrapped spring leaves hitting the frame, which seems to be the same in your above photo.

jswizz

THANKS, 4CRAWLER . This info does help ,but as you said the spring wrap is also resting on the frame . So , longer shackles .If stock is 3.5 maybe 5 eye to eye ? or maybe got to pick and pull and try t100 4.5shackles in your thread. I have rear shackles 6 eye to eye and got about 2" lift maybe 1.5 and really dont want much more in front , since the front is borderline high from the rancho 440s and the back superlift 3.5 springs aren't as" tall "lift wise.
I stlill need to do the calculations with your conversions and am not a mathmagician . I think I will try now . thanks cheers !

4Crawler

iTrader: (3)

Just plug in the numbers from your truck into the triangle calculator link on my page above. Just try a few numbers and see what sort of shackle angle you end up with, then take a protractor and ruler out to the truck and swing the ruler to the angle given and see if at the selected length it'll hit or not. Just get the 3 sides of the triangle, one is the spring hanger to shackle hanger length, the second is the flattened length of the spring, that is lay a flexible tape along the curve of the spring and get the eye to eye length. Third side is the shackle. From then it is basic high school geometry (or plug the numbers into the side-side-side triangle calculator.

jswizz

Well I pluged in the numbers I thought wich were 3.5rear front shackle 3 front spring hanger and 47 " long spring along the curve and the same eye to eye , and got 180.0 ( degrees?) so got a protractor and a ruler and tried and cant seem to get it . 180 from what ? the frame eye for the rear shalckle? anyway maybe 6 " shackle is what the protractor and ruler came up with.

4Crawler

iTrader: (3)

The front hanger to shackle length should be around 43.75" (at least that is what I measured on my '85 when I still had the stock hanger) and that gives 157* or 67* back from vertical, which is too high an angle. I plugged in 5" and got like 128* which is 38* back from vertical, that is probably pretty good, would need to check with the size of the spring eye and the clearance to the frame.

jswizz

Yeah these leafs are like 47" but they slipped right in , I think I will try the local wreckers and see if t100s work at 4.5 in or make some at 5 and try that. not getting the triangle and the front hanger is down about 3 and the rear is supposed to be 3.5 but is layed back agaist the frame making it almost neil hey 4 crawler thanks again for your time

4Crawler

iTrader: (3)

Not sure what is meant by "the front hanger is down about 3".

Triangle sides as noted:
- http://www.4crawler.com/4x4/CheapTri...l#Applications

Top side (A-B) is spring hanger up front to shackle hanger in back, I measured 43.75" as I recall, just stretch a tape measure from the center of the upper spring shackle bolt to the center of the spring hanger bolt up front, straight line distance as the frame better not be flexing as the suspension goes up and down..

Bottom side (A-C) is your spring length, 47" in your case, you want the flattened length since it is when the spring flattens out that the shackle is pushed back the farthest..

Back side (B-C) is the shackle, 3.5" more or less stock.

And your stock springs were about 45" long, if you plug in those numbers you get around 109* on the shackle angle for the stock suspension.

And with my simple rule of thumb, shackle length increase = new spring length - old spring length, or 2".

jswizz

So 4Crawler finally got some strap and made 5" shackles and '' IT WORKED ''!!! Thanks for all the input and the geometry lesson . Also the springs are softer ride they were really sprung , now they can stretch out . And didn't lift it any more .

4Crawler

iTrader: (3)

Glad it worked out. A lot easier to plug in a few different numbers into a calculator than to try cutting and drilling steel to make some shackles just to see if they will work or not. And you usually do not see a lot of lift with a longer front shackle, at least with the shackle in the back of the springs. Amazing how well the suspension will work when everything can move freely:
- http://www.4crawler.com/4x4/4R_suspension.shtml#PhaseII