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post #1 of (permalink) Old 10-19-2002, 07:30 AM
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Got some problems with these YJ springs

OK the YJ spring set up is supposed to be the greatest thing since sliced bread & I had though of putting YJ springs on my Zook way before anyone had heard of it so I finally got around to doing it. If I spend a whole day and a fair amount of money on a mod. I'm gonna expect a lot out of it. So here are some issues I have already:

My approach angle is lousy. My front springs stick WAY out there, if I come up against a rock ledge it seems like instead of my bumper hitting first now my springs & shackles will hit

I added a EXTRA leaf with more arch into my rear YJ spring pack because my Zook always seems to sit too low in the back whenever I change to diffent springs. Well, guess what? With the YJs up front it sits higher in the front then out back now, AGAIN by like 2-1/2"!!

With the amount of flex with YJs up front now my front driveshaft hits on the skid plate and on the crossmember when the front end drops down. (this is BEFORE the double shackles even open up!)

For some reason my front drive shaft is now like 4" too short but this could be a differance between the Zook front axle & Toyota front axle that I'm swapping in.

The missing links up front end up RIGHT ON the mounting plate & bolt head for my front bumper.
(my problem because of design of bumper but still another problem)

The missing links seem like they'll make for extra play in the front end which is something I DON'T need.

My shocks all max out before any of my double shackles open up so I need four new shocks or new lowered upper shock mounts.

SO why did I swap these in again??????????? My wife has a totally stock Zook that will go 90% of the places that mine will go with a little mo-jo & driving skill. [img]images/graemlins/crazy.gif[/img]
So now after I dump hundreds more $$$ & about 30 hours more into the Zook I can show off on RTI ramps....
Wooptie Doo! [img]images/graemlins/tongue.gif[/img]
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post #2 of (permalink) Old 10-19-2002, 08:06 AM
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Re: Got some problems with these YJ springs

I am assuming you have a nonshackle reversed wrangler kit (shackle in front)

my aproch angle is the same as with my lift shackles i have thought of movon my axle forward 2 inches and the springs back 2 inches as well

mine sits level at least within 1/2 inch

i had to install 2 one inch driveline spacersone at each end the one on the transfercase end helps with the clearance of the crossmember

my missing links do add some extra slop but i installed a panhard bar as well when i did the spoa

i have custom upper and lower shock mounts the lowers are on the bottom of the axle the shocks have 13 inches of travel

i have never had mine on a rti ramp it does ride smoother and the added flex is nice it helps make up for lack of lockers or a front one at least and on some ground conditions it makes it more stable
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post #3 of (permalink) Old 10-19-2002, 09:59 AM
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Re: Got some problems with these YJ springs

<font color="green"> Who said that installing Yjs is a easy thing that takes no mods to work??? 1st off, if your driveshaft is too short, then yes it is because the Yj pushed the front in foward and now that you've got yota axles it is even more out there! You have to get a longer driveshaft, period! And if it is hitting the skid plate, then cut a hole or around where it hits! Your shackels will stick out more then before, but that is normal with the set-up you have. I've got the trailtough missing link front and rear and they stick out a little more then a S/R would! And if your mounting bolts, for the missing link, are where your bumper is then cut the mounting plate off the bumpstop for the missing link and weld it to the side of your bumper. This is what I had to do with TT's kit, because I have the wheelers offroad front bumper and it used the same mounting holes as the missing link did. Very easy to make work! (see pic in attachment) About your shocks, of course you will have to get new ones! YJs flex like crazy, and you need to get new shocks so there nothing around that, also take a look at your brake lines, if you have missing links you might need to get longer ones? [img]images/graemlins/confused.gif[/img] And if you don't like the Yj swap, then take it off and sale it to someone that wants one! Its that easy! [img]images/graemlins/grin.gif[/img] [</font color>
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post #4 of (permalink) Old 10-19-2002, 10:31 AM
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Re: Got some problems with these YJ springs

Oh Poo! Listen to you. Waaaa! I'm building a flex monger. You won't be showing off on a ramp, you'll be doing that on the trail. In fact, you can always make fun of the stocker YJ by saying (Huh, those springs seem to do just fine under my rig. It might be the fact that they are attached to a Jeep is why they give you problems" [img]images/graemlins/grin.gif[/img] [img]images/graemlins/laugh.gif[/img] [img]images/graemlins/wink.gif[/img]

Let me give opinion to your issues i the order you made them, except approach angle I'll address last.

Swap the rears up front and vice versa. Maybe one set was worn out more due to things like heavy loads, larger motor, plowing. If not, just consider yourself ground breaking by crossing rockcrawling with pre-running. [img]images/graemlins/laugh.gif[/img]

Yup, you need to modify the skid and crossmember. No doubt.

You're into a new front D/S, probably a rear too but you might not know it yet. [img]images/graemlins/shocked.gif[/img]

Modify your bumper it include M/L rests.

Eliminate the front play with a Panhard bar. Get fabbin'.

Eliminate rear axle wrap with a Traction Bar. Keep fabbin'.

Buy the longest damn shocks you can, like the 36" 9-way adjustables from Full Traction and Rancho (FTs are cheaper).

You'll need higher upper mounts to fit them. Don't stop fabbing yet, or $12 ford mounts might work. In any case, the shock is what is limiting travel. Make the limit the extension of the suspension instead, maximizing travel. Might as well, your into it too far already.

Now about that issue of approach. Unfortunately they only way you will be able to reduce this is by increasing the size of the tire. I think a 37"x12.50"x17" would do nicely here. Can Santa fit them down your chimney? [img]images/graemlins/smile.gif[/img]

But that will only open the next can of worms, fitment. Trimming and bumpstoping will be necessary.

In the long run, you be taking names and kicking ass on the trails. [img]images/graemlins/grin.gif[/img]

Cheer up and enjoy it.
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post #5 of (permalink) Old 10-19-2002, 11:56 AM
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Re: Got some problems with these YJ springs


Send me your home addy and I'll send you some of Quebec's finest Oka cheese to go with that WHINE ..

I've had my share of growing pains with YJ's as well but I'm almost there.
It's silky smooth on the road and trail. Rear flexes like crazy but my front is limited by my shackle droop...I'm going to try a longer shackle or M/L's at the worst. I'm glad I did it....
Keep pushing!!!!
A couple of notes:
My traction bar I made for the rear is perfect and will no doubt save the springs.
The front d-shaft I had made out of PTO triangular shaft (don't laugh) is not balanced and doesn't even vibrate at all!
The yokes were clearanced and we'll see how it goes with more droop....
That's it....get fabbin'....! [img]images/graemlins/grin.gif[/img]

Any one interested in a LWB frame?

Oh almost forgot I bought another LWB yesterday.... [img]images/graemlins/tongue.gif[/img] 1 LJ-81, 1 SWB H/T, 2 LWB...addicted?

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post #6 of (permalink) Old 10-19-2002, 01:25 PM
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Re: Got some problems with these YJ springs

WHy pick on Bill ??? he has a very valid reason to bitch. I to did the YJ swap and ran into every single thing he mentioned. 300 guys on here raved on """just throw yjs on" so i did. Everyone left out the little fact that now i have 6 inches of spring stickin out in front of the sami,there will be SEVERE axle wrap, and oh yea we forgot to mention your drivehsaft is gonna bottom out and rip off the side of your 4:1 t-case...... oops forgot that part!! Im extremely leary of taking advice off this board now becuase noone ever tells the whole story.. The latest one was how awsome it was to swap dodge mounts inot the sami ""THEY ARE THE SAME!"" is what is qoted about 5 different times... OH yea except they forgot to mention, the studs are bigger so a 15 minute change turns into a full afternoon of taking crap off,redrilling and putting it back together.. Oh and now look the motor sits a inch lower throwing off the tranny-t-case shaft angle woops! forgot to mention that to.
Thats just a start to the 15 different ""awsome"" swaps ive tried from listening on here
post #7 of (permalink) Old 10-19-2002, 01:37 PM
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Re: Got some problems with these YJ springs

Did you know the 16V motor swap can be performed in about 15 minutes[img]images/graemlins/laugh.gif[/img]! All the places that sell stuff and most the people who install it fail to tell you what a PITA it is... Just suck it up, modify it best you can and if it still sucks, undo the mess and begin again.
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post #8 of (permalink) Old 10-19-2002, 02:11 PM
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Re: Got some problems with these YJ springs

i never said it was a 15 min job for the dodge motor mounts.
it took me over 2 months of r/r to make my very own 1.6 adapter plate and the passanger side relocating motor mount
yes you have to drill out and you have to cut about 3/8" off the bolt to make it fit. i even went as far as putting in one of the asain soild motor mounts on the drivers side but i did not like the way it vibed my teeth so i replaced it with a stock one i bought at the melt. i have the other dodge mount just have not replaced the drivers side yet.
soon i will be doing rears up front with ylj in the rear so keep me posted
i like to know everything i'm in for before i start so i can be prepared.
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post #9 of (permalink) Old 10-19-2002, 03:12 PM
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Re: Got some problems with these YJ springs

It can be Done approach angles are not that Bad with 33" s put my rig against a wall I have 5" between the wall and the front of the tire. And by far YJ's are no afternoon plop on and go, if you want it all to work right. If you think of the problems ahead of time you can solve them ahead of time, just remember every action has a reaction PLAN,PLAN,PLAN,PLAN
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post #10 of (permalink) Old 10-19-2002, 03:35 PM
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Re: Got some problems with these YJ springs

We've all been there. I can't count the # of times I've started a project, expected it to be a weekend thing only to have it spill over into a marathon event. Case in point: my YJ swap and Toy axle swap. I built the YJ kit myself and it took A LOT of measuring, and re-measuring, only to have to throw it all away and start fresh. Finally, nailed it, many weekends later. Toy swap: much the same. Rear was a bitch, and front is no picnic either. The front is NOT a straight drop-in as the perches are too wide and I'm still messing with the U-bolts, etc. What it boils down to is that nothing goes as planned. My first engine pull took forever, now I can have it out and back in a few hours at most. We'll see if the 4.3L goes in so easily... ;-)
We understand your need to vent, we've all been there. I won't be finishing my Zuk for the next couple months and I initially thought I would have had it done this past summer! LOL Go figure...

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