I know the YJ swap is super popular, so no need to remind me of that... What I am looking at is maybe a new Idea?

I know Fatkid is running 3" Lifted XJ Rears, which brought me the (Maybe not so new) idea... They are 4" Longer than YJ's and also have a 4" offset axle pin... Good For departure angles, less frame extension in the rear needed... I am thinking of running stock XJ Rears In the rear... An XJ also weighs less than a YJ so they may possible be a hair softer... Yes, I plan to lengthen the wheelbase quite a bit, so again, all the ease and such of a YJ swap will be of no use... Ideas and thoughts on the XJ setup for the rear?

Now for the Front... I know some of the Toyota guys are running stock Toy Rear springs, minus the overload, in the front of their rigs and getting good results... They are also longer (than stock Zuk) and have an offset pin so less frame extension would be needed up front than in a centered pin spring... I know the toys are heavier than us, but those stock rears are pretty soft (don't know spring rate)...

And my last idea, run stock XJ's all around so I know the spring rates match and then front and rear overhangs would be the same... Opinions?

Nobody has any ideas on that? Hrmmm...

I'm debating on using Toy springs in the rear, If I do it I am going to mount them inboard using the inner plate of the stock frame mount, combined with an additional plate to secure them. I'm gonna put the short side to the rear, (Toy's measure 29"+22") So it will push my rear axle back 9". I can't decide if this is too far back to go since I'm gonna stick with the 33"s.
One thing I think would be neat is to have your inner spring mounts for the front and rear springs almost touch each other, tha tway you can use on elonger mount off the bottom of the frame to secure both and eliminate the mounts catching on stuff. Kind of like the inner mounts for the shaffer coil kit but for leafs instead of control arms.
That idea of the balance of XJs all around does sound decent.
I can't decide how far back to push my rear, my front is already 3" forward, and I'm gonna stay with 33"s, about 6" lift height. I'm also debating between YJs, Toys, or coils, I've got YJs goin in up front. would things be thrown off with YJs frotn n coils rear, say 150lb rate?

That does sound interesting, but whats the difference between the YJ and Toy rear OVERALL LENGTH? (I have YJ's now, would I need to have the front mounts moved any more than current location?) I'd love to push the rear back a lot more...

XJ rear, TOY PU rear...
This is EXACTLY what i am going to be using on my current project.
XJ's in the rear, TOY PU in front, all on custom mounts to end up with a 95"-100" WB.:D
That does sound interesting, but whats the difference between the YJ and Toy rear OVERALL LENGTH?
You could do a search :flipoff2: OR..... since i happen to have the measurments sitting next to me...

XJ rear= ~ 51" eye-eye, ~ 22.5" short side, 28.5 long side. ~ 6" offset.
80-88 TOY PU rear= ~ 48" e-e, 20.5" short side, 27.5" long side ~ 7" offset.

This is actually an old idea, i stole it a couple of years ago when i saw them on a couple of Tim Porter's rigs. Also, i believe seabass is running TOY PU rears all around.

Toy pu rears do look interesting...they are the same length as yjs but the pin is offset. Havent tried em but I have some in the shop.

I'm thinking you'll still have to extend your frame rails even you want to keep as long as a stock sammie, even longer if you want to extend your wheelbase

Stock front sammi spring: ~37", centered pin, 18.5 either side
Stock front sammi spring: ~39", centered pin, 19.5 either side


XJ rear= ~ 51" eye-eye, ~ 22.5" short side, 28.5 long side. ~ 6" offset.
80-88 TOY PU rear= ~ 48" e-e, 20.5" short side, 27.5" long side ~ 7" offset

Originally posted by DemoMike
I'm thinking you'll still have to extend your frame rails even you want to keep as long as a stock sammie, even longer if you want to extend your wheelbase

Stock front sammi spring: ~37", centered pin, 18.5 either side
Stock front sammi spring: ~39", centered pin, 19.5 either side


XJ rear= ~ 51" eye-eye, ~ 22.5" short side, 28.5 long side. ~ 6" offset.
80-88 TOY PU rear= ~ 48" e-e, 20.5" short side, 27.5" long side ~ 7" offset

if one side of the spring is 6" longer than the oter, the pin is *3"* off-set, same for the toy spring, should be 3,5" off-set

later alfred

Didja mean:

(27.5-20.5)/2=3.5 (offset) rear toy
(28.5-22.5)/2=3 (offset) rear xj
:D

Well, i am planning on lenghtening the wheelbase to around 94-96" or so, so I have to extend the frame front and rear anyhow... I just want as little overhang as possible in both ends... I already have the springs, so hell, if it doesn't work, i can always redo my mounts and such... Not a biggy right? Im gonna go this route, and I will definitely let everyone know how it goes... I plan on 36" Swampers or 37" MTRs at this point...

Ill go with the XJ rears in the Rear, and Toy Rears up front, and if that sucks then Ill go XJs all around...

Hugh

Take pic.s

Didja mean:

(27.5-20.5)/2=3.5 (offset) rear toy
(28.5-22.5)/2=3 (offset) rear xj :D

Doh!:rolleyes: Thanks Al & Demo.. Yep, i must of had a brain fart there....

I am thinking of running the same setup. Does anybody else have pics of their setups like this? Pros/cons of this setup? Any info would be great!!
-Pat

nobody?

I'm running a set up very simliar to what punkskalar is doing, exept using e150 leaves...I did a lot of research on various leaf springs (toy, xj, waggy, f150, f150svt, dakota, durango, etc...probably too many:D ) but ended up using ford e150 main leaves built up with a mix of yj leaves. With overall length of 54.5" and 8.5" pin offset, they allowed me to move both axles over 10" front and back for a WB of 99.5". On 37" MTR's I find it wickedly awsome:smokin:
the approach/departure angles are great on 37's and can be 90* with 40"+ tires:D ..... maybe next season:grinpimp:
http://img.photobucket.com/albums/v190/frwinks/Suzican%202006/IMG_505020Large.jpg

nice, i like the rear alot. How much did you lengthen the frame in the front? What exactly is an e150? Do you like the flex and offroad handling?

I have toyota rear springs all around, I redrilled the military wrap leaf so it was no backwards in the rear becuase the springs are spun around so that the short offset goes to the back

how do you like them? Flex pics? I heard from somebody on another board that they wore out fast and he did not like them. Whats your imput?

Holy old post... I ran them about 6 months in the front, short side forward... I found myself hanging up on the shackles everywhere (shackle reversal), especially when backing up in the rocks... They got ditched in a hurry, after I bent 5 main leafs, it just wasn't worth it... I was even running doubled up main leafs... They did have more flex than my 14" shocks could handle, so the flex was just a wasted effort if you can't dampen it... My shocks were my limiting factor in the front... Im running 5 leaf YJ's now, which lowered the front about 2-3" over the longer stock XJ's... Very rarely hang up on the shackles now....

Had the same issues in the rear, but just let it slide for about 2 years, and now I am going to a hybrid YJ pack...

My .02 is that the XJ's are just not worth the effort unless you are looking for a cheap WB stretch, and want to leave stock frame mounts in one location... If you are gonna do any real fab work at all, go to a shorter spring, you can't use all the travel the XJ's offer, with shocks as far out on the axle and as verticle as you can mount them...

thanks alot. thats very good info. Were you bending main leafs in the rear? I am thinking about running the XJ's in the rear but something different in the front. Thanks alot
-Pat

I run a traction bar in the rear, and was still bending the main and second leaves on a fairly regular basis... I do beat the hell out of my rig though, but even if I were to go easy on it, I don't think I'd use XJ's again, front or rear... I was bending at least one front leaf per trip out... Sometimes both if I went for a weekend run...

Then again, I found the limits of almost everything I built since I first got this rig on the trail... The only things I have from the original build is the front axle housing, and the steering column...