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-   -   What springs for YJ with V8? (http://www.wranglerforum.com/f218/what-springs-for-yj-with-v8-240391.html)

indirocz28 05-05-2013 01:48 PM

What springs for YJ with V8?
 
So, I have my YJ and have my TBI 350 swapped into it.

However, with the 1.5" lift RE springs that came on my YJ, it only sits about 2 " below the bump stop. It also hits the bump stop whenever I start flexing.

So, the question is what springs would you or do you use for front leaf springs with the added weight and still get good flex?

indirocz28 05-05-2013 07:24 PM

Forgot to mention that I'm SOA and on 37" tires.

AZ WRANGLER 05-05-2013 07:54 PM

I have a Chevy 5.3 and run rough country springs had the 4" lift on and didn't sag. Just put the 6" on and so far holding up fine.

Since you are SOA they might have stretched out more? How old are they?

YJ fanatic 05-05-2013 08:22 PM

79 Attachment(s)
I run Rusty's front 4" springs front and back. The front springs are stiffer or arched more to support the weight of the engine, so they seem to give a little extra lift. Since they are stiffer, they might be good under a V8. They'll hold up the weight better and still give the lift you need.

indirocz28 05-05-2013 08:36 PM

The ones on it are for sure worn out. The front of the front springs is straight flat, and the rear of the front springs are just a little of a negative arch since they are worn out.

I just need front springs as my rear is a 8 or so leaf pack in a 1/4 elliptical design.

YJ fanatic 05-05-2013 09:20 PM

79 Attachment(s)
Jeep Suspension Lift kits, Suspension Systems, Suspension Accessories and Components for JK, TJ, XJ, WJ, ZJ, YJ, WK, KJ, MJ, FSJ

Here's the link to the Rusty's springs. They have 4" and SOA 1.5" packs.

indirocz28 05-05-2013 09:21 PM

I doubt I go with a 1.5 just due to the weight factor in my front end.

YJ fanatic 05-05-2013 10:04 PM

79 Attachment(s)
That's a good point. Also, I'm not familiar with the elliptical setup. If you do go higher in the front, how would you raise the rear? Do you have to custom mod a spring pack or something? I've never seen an elliptical suspension.

indirocz28 05-05-2013 10:56 PM

As it sits currently, the front could stand to come up a couple of inches in order for it to become even with the rear.

The rear sits plenty high.
As far as adjusting, the more curved the rear spring packs are it seems the higher the lift.

indirocz28 05-06-2013 03:11 AM

Quote:

Originally Posted by YJ fanatic (Post 3723434)
That's a good point. Also, I'm not familiar with the elliptical setup. If you do go higher in the front, how would you raise the rear? Do you have to custom mod a spring pack or something? I've never seen an elliptical suspension.

So I was a bit wrong. The height/ position of the bump stop for the 1/4 elliptical rear is what sets the height. That is, until the bump stop wears out or there isn't one.

This link was very informative to me on the 1/4 elliptical technology of 3-6 years ago.
1/4 Elliptical Flex Pics.. - OFN Forums

denisbaldwin 05-06-2013 03:39 AM

I plan on running the RE1445 springs I have now. Nice fat 6 pack should hold up real nice.

indirocz28 05-06-2013 06:16 AM

Those look nice Denis.

How much were they, and where did you get them?

denisbaldwin 05-06-2013 06:18 AM

I got mine from mudflaps.com. I used a coupon code and got them down to about $140 per spring. I have them in front and in back of mine.

YJ fanatic 05-06-2013 06:33 AM

79 Attachment(s)
Quote:

Originally Posted by indirocz28 (Post 3723977)
So I was a bit wrong. The height/ position of the bump stop for the 1/4 elliptical rear is what sets the height. That is, until the bump stop wears out or there isn't one.

This link was very informative to me on the 1/4 elliptical technology of 3-6 years ago.
1/4 Elliptical Flex Pics.. - OFN Forums

Great link! Definitely helps me get the overall concept.

indirocz28 05-06-2013 06:53 AM

That link helped me realize that I need to do some changing on my setup.

Good concept, but idiot who put it together years before I ever came across this YJ.

indirocz28 05-06-2013 12:56 PM

Thinking of possibly going with these:

87 95 Jeep YJ Wrangler Front 4" Lift Leaf Springs w Bushings Pair 8010 | eBay

and a set of 1" lift greaseable boomarang shackles.

I also still need to do all 4 shocks on my YJ. I have all the stuff to mount them up, but still need to figure out where I want my long shocks, and if I want to do the same length all the way around or not.

The long shocks I have are from RC and are 30.25" long fully extended.
Then I came across these last night which are 25.54" long fully extended.
2 Load Carrier Shocks Ford Explorer Mazda Navajo 1991 1992 1993 1994 Rear New 2 | eBay

Might put those on the rear since its 1/4 elliptical and 3 linked.

denisbaldwin 05-06-2013 01:06 PM

Just so I've got this right... you have SOA (5.5" of lift), you want 4" lift springs on top of that.. and 1" lift shackles? that's a LOT of lift.

I have 7" of lift on my SOA setup and, for funsies, put 42" tires on it to see how they fit. It all fit (would drive it anywhere, but it DID fit) so I can't imagine going even higher.

Denis

indirocz28 05-06-2013 01:19 PM

Well the issue now is that the springs on my YJ are worn out. Flat worn out.

Plus the weight of the GM350 in the front, and the heavy SM465 trans and D300 T case.

The bump stops sit 1" above the springs, and when I go to flex the front they bump immediately and stop.

I am counting on the weight of the 350 to compress the 4" springs more than they would on a normal YJ, bringing my front end up at least 2-3" and at that point they would start to be even with the height of the rear.

I saw your pics with the 42's. lol!

indirocz28 05-06-2013 01:22 PM

View link:

http://www.wranglerforum.com/f118/my...ml#post3695836

the DR side is sitting solid on the bump stop stopping the flex. The Pass side is only about 4" from the axle.

Now, when the jeep is sitting level, the front end sits a few inches lower in front due to the weight, and the springs being worn out to the point that the fronts of the front leafs are flat, and the rear of the front leafs are actually forming a negative arch.

overthehillsahara 05-06-2013 11:39 PM

Denis, I'm looking for about 7" of lift on my project but with a front coilover. Could you let me know what the space between the top of your front axle and the bottom of your frame is? Thanks

indirocz28 05-06-2013 11:48 PM

Somewhere I think Denis had a build thread.. I think.. or it was just a bunch of pics he posted.

indirocz28 05-07-2013 07:07 PM

No more?


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