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Discussion Starter #1
This is in a last-ditch attempt to stop my X from slamming the axle over every dip and speed bump. I installed the Timbrens, but they left zero clearance and allow no travel at all, because the axle rests about 1/2 inch below the bump stops so any articulation immediately contacts the rubber, and essentially stops it. I tried cutting one of the two round "ballons" off to allow for more travel but now it hits just as hard as the factory bump stops. So, what if I tried to find stiffer rear shocks? Wouldn't that help lessen how fast the weak rear leaf springs compress? I'm so frustrated with my X because it bottoms out over the smallest of dips and bumps (speedbumps) and nothing seems to work. Would stiffer shocks work? If so, what shocks might work for that? What else can I do? I have no lift, just stock suspension. Thanks.
 

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Stiffer shocks would help. The Timbrens do limit travel, although, as you can see below, not that much. I hated mine for quite a while until they broke in. They take some time to work in. At first they're pretty stiff. I'm still considering cutting mine in half though.
 

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I don't have pics as USMC but I have done the same test. The Timbren may limit the flex a little bit but it's minimal. Huge gain is no more bottom out and no sag when loaded.

As outlined by Syndicate, the Timbren will soften a bit over time, they only work better after 3 or 4 months.

Another goodie: the stock but stock is hard like concrete in summer and it's not improving when cold. The Timbren stay soft enough during our canadian winter (-15F).

Just my 2¢
 

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ejpreston,

call Timbren, tell them the kit you have and ask them for a bump stop that is 1/2 as tall as the double-balloon damper you currently have. This way, you'll have a rubber bumpstop that is designed to work properly but gives you clearance between it and the axle. There is a part like this available I assure you. I know because I was originally going to go this route but since I put my lift on, the Timbren as is works fine.

Terry
 

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Discussion Starter #7
Thanks for the tip. I have also been considering the Rancho RS9000X adjustable shocks for the rear, assuming that I could make them as stiff as I want, to counteract the weak springs. Anyone have these or know if my theory would work? Thanks again.
 

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I have thes rancho 9000's in the rear... and obviously MC is running the MX6 shocks in the rear which are also adjustable (his is pictured above). I suppose that would help you somewhat, but not totally.

I had the timberens on before any of my lift. I noticed that when i installed them they were almost resting on the axle. But when i drove it around i didnt see any problems. It was 100% better than stock.
 

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Discussion Starter #9
Same with me, but when I drove around it felt like I was bouncing on, well, rubber ballons (how profound). In other words, while it completely eliminated the bottoming out, it also eliminated any soft suspension movement PERIOD (regular roads, not off-road flexing compression) and made it feel like there was no suspension at all. I guess I will try the shocks. I just hope they work for the price.
 

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I haven't bottomed out at all after adding the AAL kit. ...But that's only good if you want a lift. I bet there are spring stiffer packs out there with minimal or no lift. I really like the way the X handles on the road with stiffer springs. (I have stiffer front springs too.) There is not as much body roll even with it lifted 2". I removed my rear anti-roll bar and don't even notice it is gone.

That said, there are probably 10 different ways to help the bottoming out problem. You just have to figure out which is best for you.

Z.
 

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Here's some advice posted by Xterraracer on another site. I haven't tried it , but it sounds like it might work.

"If you look between your frame and the spring , you will see the "X" has dual bump stops. Totally remove the forward stop that hits the spring before the axle. This is a bolt on item. Then take the bump stop that is directly over the axle tube, remove them. Take one of these to you local 4wd parts store and have them find you a pair of low profile urethane pads that will bolt on in their place. You can drive around with out the stops, without causing any damage. If you should hit a speed bump or such it will hit metal to metal and be noisy. It will not do serious damage. This is how I set up the rear on my XterraRacer. If you do lots of serious off roading then you may look at doing the add-a-leaf or a new spring pack. Your stops will already be set up for more movement."


Rob
 

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I'm no expert on this, so I'm sure someone can correct me if I'm wrong, but it sounds like you need more weight carrying capacity. Shocks and bump stops are not designed to up weight carrying capacity, you'll need springs for that.

I added the Deaver mini-pack from PRG. No change in bump stops and, for now, no change from factory shocks. The rear end now sits a couple inches higher, the springs don't sag, no bottoming out, no slamming (unless I come down too hard or too fast, which would be my fault then).

I don't think shocks or bumpstops are the real answer, especially if you plan to go off road. The Deavers are about the same price as a set of shocks, if I remember correctly.

I had better add that I don't know if your truck will sit level or have PST (porn star syndrome?) if you just do the rear springs. If you don't plan to ever lift the front maybe a local spring shop can add a leaf or re-arch your current spring pack to keep them from sagging as much.
 

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what about those coil-over shocks. i cant remember where i saw it at, but i know JC whitney has some.... i know, JC whitiney...

but its a shock with a spring around it, kind of like a load leveling device.
 

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driver X said:
what about those coil-over shocks. i cant remember where i saw it at, but i know JC whitney has some.... i know, JC whitiney...

but its a shock with a spring around it, kind of like a load leveling device.
These???


Or These?? (ooops these look broken for some reason?!?! :drunken: )
 

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yea like those... the top ones not the bottom ones! ive seen people use them on trucks to stiffen the rear so they can haul more. might be worth looking into. ill check my summit mag and jegs catalog to see what they have
 

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Cant use those on the rear of our trucks! only for the front. I have never heard of adding a coil to the rear of a leaf sprung truck.

Trucks like the FJ cruiser use rear coil springs though.
 

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those are the coilovers for the front.....lol....they wont fit the rear. i think i know what your talking about, but i dont think they are used for anything more than a bumpstop.
pretty much the same as the timbrems, except its a spring.
 

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driver X said:
yea like those... the top ones not the bottom ones! ive seen people use them on trucks to stiffen the rear so they can haul more. might be worth looking into. ill check my summit mag and jegs catalog to see what they have
Yea this is an option, I have used spring shocks on the front of a Rambler once, they were for the rear of a 63 impala, but I know what you mean, a shock for the rear with a overload spring, greatly increases load capacity. We even used to add them to the shocks, they came as a kit, you added them to any shock using muffler type clams. You jacked up the car got some stretch took off the bottom of shock slid them in and put on the clamps, if it rode too tough, you dropped the bottom clamp a bit. Then they came out with them as replacement shocks. They looked a lot like the ones pictured in top picture, but were made for the rear.

Ya know, Air shocks will be a possibility also. About 17 PSi would do it.
MC
 

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Yeah! Air!

Big rigs use them. They are tried and true. And you could slam it :)

Does anyone know how they are off road? Does an air suspension articulate?

hmmmm


Z.
 

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Well running a very low air pressure the air would stuff pretty good, be quite quick on a droop, Cadillac runs 14 psi, and has a leveling valve, no matter how many dead people you put in the truck it rides the same level, that's why the Mafia used em so much. MC
 
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