Join Date: May 2001
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Okie.. heres the dilema.
I broke a leaf eye on my rear main passanger side.
So.. I got new springs to swap in.
The new springs... are millitary wrap.. and 4 leafs with an inverted 1/2" thick leaf on the bottom.. (I assume to control heavy loads, and extreme flex.) (lots of load, the big leaf contacts and stops sag)
I was going to pull the big (1/2" leaf) and rebuild the pack so it was just like the old one.
I just pulled the old leaf on the drives side out to get ready to put the new one in.. and looked at them.. then got the tape measure..
The leafs are the same length and the right leafs, only my stock YJ with an adda leaf are 7" from the ground to the spring.. when they are upside down..
The new ones are 6".
So I'm going to sit one inch lower right?.. BOOO..
With my Amazing 170 lbs :P.. I can make the old spring sag to 6, 3/4" that's a 1/4" flex..
The new springs I can make sag to 5,1/4..
that's 3/4" flex..
So, I came to the conclusion that these new springs are flexier.. (duh).. so with some rough guesstimation... I can conclude that they will sit somewhere between 1" and 2" down...
Also, the old springs were just pulled, where as the new ones were not on a truck for a whiile with weight on them..
Ok if anyone is still reading this pat yourself on the back.
My Jeep is going to sit, somewhere between 2-3" lower at the rear end then it used to.
I have 6" shakles.. and my new springs are 4 leafs not 6..
I'm guessing a SOA would give me 5" of lift.
So, I could go 2-3" lower... or.. if it is 3" lower, I could go SOA, chop 2" from my shakles, giving me 1" of lowering power at the axle.. and finally equal a lift of 1".
Anyone care to check my math.. this is all theoreticall.. I'm going to load the springs to morrow and see where I am..
I also just wanted to check.
SOA, longer break line.. (the one between the frame and axle)
vent tube (needed doing anyways.)
anti-wrap bar. (I can handle this and it can be an inprogess project.
SYE.. this is my big one.. Theoretically.. it would be like adding a 1" suspention lift to my current config... do I need a SYE? if so.. how mcuh... and then I need a special driveshaft too right?
This is only the rear end. so no steering or other complications..
Anyone got any insight.. hints..
Can I do this?
I've done carb swaps, fabbed my rollcage.. and installed OBA.. am I way out of my league.
Any info is greatly appreciated.
If you read this far you either are very bored or have a very boring job where you sit infront of a computer.