How much curve should there be in stock YJ springs?

That's what mine looks like now, except for the dirt, scratches and stainless steel. The one you posted before has a suspension lift.

Earle

For Sure. That's why I ignored it the first time.

Yup. Huge difference.

Ok, cutting through all the BS, stock YJ springs will appear to be virtually flat, with almost no arch. So, if this YJ has not been lifted, and still has stock tires the following measurements will indicate if it has sagged, etc.

Front: Ground to underside of front bumber at frame: 18 1/8" Rear: Ground to rear crossmember at tow hitch bolt hole: 17 1/8".

I took these measurements off of a brand new '95 on a dealer's lot back in

I read through this thread.

Your YJ springs are almost flat. If you run a straight edge from front to back you might have an inch and a little, no more that I have seen.

Longer shackles can damage a spring. They can allow it to stretch out longer on a bump. This can take the arch out of them over time. This does increase articulation, but at the expense of spring wear.

The proper setup with stock springs is to match a longer bump stop to the length of the shackle lift. This stops the springs from over bending.

Your steering troubles are serious from your description in the thread.

You are describing 'torque steer' I think it's called. This can come from a variety of places.

- dead or missing bushings in one spring end

- loose axle U bolt on one or more spring packs

- loose front wheel bearing

- dead rear wheel bearing

- broken frame

- ball joint bad enough to be really dangerous

- tie rod end about to fail

- body shifting on the frame (old tenant's CJ7 was like that, he even had torque shift on his automatic)

- maybe something simple like the caster being out enough to allow a combined wear from all the ball joints and tie rod ends to allow one wheel with the most wear not to track straight.

If you need new springs, I would ask here in it's own post. I'll bet there are lots of stock YJ springs sitting collecting dust in people's garages after they have done a lift.

Mike

Jeepers wrote:

Stock springs in a YJ are very nearly flat.

These measurements are useless unless you can tell me what size tires were on that vehicle.

Earle

I asked the same question a while back, and also did a little research... Basically they are supposed to be flat on a YJ just a little positive arc. If they are inverted at all then they need replacing.

As for steering; my leafs are pretty badly sagged but the steering is fine.... might look elsewhere to correct that problem. Unless yours are inverted more than mine:

Excellent! Thanks for the forethought. It has flat springs, but I'll measure when I get home tonight or tomorrow. I spent the weekend and Monday on the road with it. I noticed the left front dives when I jerk to the right on a straight away. I think the Jeep has a combination problem: long shackles (bad caster) and fatigued leaves. It only has

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Could be. the Jeep only has 80,000 miles. I think the springs are worn. Thanks!

If you look, the tire is about three inches from the fender, not exactly on stilts. Below the door is 19.5" to the ground. I'm more and more convinced that I'm looking at a caster/spring fatigue issue.

I saw your page before. :^)

Her springs aren't that bad. :^)

Without U or I there is no bullshit, for sure.

Nice paint job, Simon!

That's how my 1994 YJ Sahara leaf springs are.

Helped for me. I don't think it will help much for the OP.

Bill. Those shackles don't look stock to me. :-)