NewKindOfClown

Thank you

chipmaker

Also be aware RE coils sit way higher than advertised. Mine Sat near 6" until after break in and a bumper, they still set over 5"

DirtyKurty

So if I remove the bottom leaf spring (smallest) on my rustys 3 inch lift will it make it a smoother ride? It is very stiff in rear. I might do that and add a shackle (if it sags after removal) to put it to 4 inch where it is now... Some reason there is also no flex in the back even after rear sway bar removal... For now I think I am going to but a 3/4 inch spacer on the front to level it to 4 inch and add some rear sway bar links to front from a early 1990s f250.... I herd they are right fit and length for 4 inch of lift.

NewKindOfClown

It might, but definitely not if you do this:

DirtyKurty

So shackles make it stiffer?

NewKindOfClown

The shackle represents one side of a triangle, which has these points:
A is the front leaf spring eye
B is the rear leaf spring eye
C is the upper shackle bolt

The angle B (the angle of your shackle relative to a straight line that intersects the leaf spring eyes) has a significant role in how well/how much/how easily your leaf springs move in each direction (compression and extension).

A longer shackle changes that angle and brings it closer to 90 degrees. An ideal angle in most cases is 45 degrees. To compensate for a longer shackle, you either need longer leaf springs, which would move point B further back, or you need Shackle Relocation Boxes, which would move point C further forward.

SG Mason

Fixerized that for you, darn mistypes

NewKindOfClown

Thank you! Edited.

dahluwalia

Hi I have a 1999 xj I had for near 10 years. The rear shackles rusted out so I put a rugget ridge 2 inch economy lift with spacers and shackles .I put a new fire in me to see the old gal sitting up. So now I was wanting to get bigger tires 31's and maybe go up 1 more inch .I was wondering if a 1 inch block in the rear and 3 inch spring up front would give me a 3 inch lift without further mod.

NewKindOfClown

You'll need to add new shocks to your budget, and I highly recommend replacing your track bar because the front axle won't be centered anymore with a 3" lift.

I can't say this enough: Skip the blocks. Take off the 2" shackles. Get stock shackles and new leaf packs. Or at least new UpCountry (1" lift) leaf packs and a set of shackle relocation boxes.

With 2" shackles and blocks, it'll ride terribly and dramatically increase the stress on your old, worn out leaf springs.


Attachment 283709

mbart

real quick question here. im ordering 4.5 lift kit and im looking for tires and wheels. correct me if im wrong but would 15X8 3.75 backspacing be perfect for a 33/12.5/15 or am I missing something? I know ill prob have to do small amounts of trimming on the 92 xj but other than wheel and tire fitment and not rubbing on the la should I be good?

RedJeepster1

My current tire/wheel setup is exactly what you just described and the lugs in the tires rub the lower control arms at full lock. Just barely though. If I had aftermarket control arms I don't think I would have an issue, but I am only at 1.5" of lift so there's no need for me. If you are going with a 4.5" lift, I imagine you are replacing your LCA's anyway and therefore should be fine.

dahluwalia

Ok thanks I just bought the 2 inch shackles and spacers and they work fine .It sounds like if I wand 3 inch lift it a whole another ball game. Well thats what I wanted to know thanks I ll be sticking to 2 inch for now,Id like to get bigger tires than the p235/75/15 's that I have on it now maybe that will apease me for now ....Can a 31/10.5 15 fit on the stock steel wheel and not rub ?``````````````````````````````````````````````

dahluwalia

As far as a trac bar goes 2 questions . Would a Stock with a relocator(could be welded ) work well compared to a adjustable ? And more importantly are the adjustables long lasting on a daily driver I don't want to replace t every year.

SatiricalHen

adjustable last a lot longer because when you lift more you can adjust to new lift height. Adjustable all the way for me.