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Unread 01-19-2010, 06:17 PM   #1
daPitbull
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Default Metal Tech rear LT setup

If you read the thread, looks like they'll be offering a weld on kit.
http://www.fjcruiserforums.com/forum...uspension.html
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Unread 01-19-2010, 06:23 PM   #2
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Very cool setup!!!! WIll be great to see how it pans out in the long run.

I wonder how they prevent rubbing on the shock, more offset wheels/wheel spacers? Also the rear links and mounting bracket will catch more rocks, but every setup has tradeoffs.
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Unread 01-19-2010, 06:41 PM   #3
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Tell me about it...my rear links are already boogered up, but it's worth it (and they're stout enough to handle it). I just need to learn to drive.
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Unread 01-19-2010, 08:02 PM   #4
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that looks sweet. pretty beefy and weld on seems cool.
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Unread 01-19-2010, 08:29 PM   #5
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Sic!!! I'd buy it.... If we build up our rears like that, it's so much easier to keep all tires on the ground even with ifs
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Unread 01-20-2010, 04:12 AM   #6
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I can't see any pictures from my office computer, but this might be a solution for me to compensate for front TC LT. I was working myself through finding best way to fit LC80 coils, but looks like there is an alternative way.
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Unread 01-20-2010, 09:43 AM   #7
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Where did my post go in this thread that I made yesterday?
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Unread 01-20-2010, 10:02 AM   #8
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hmmm, 3 linked rear, looks cool!!
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Unread 01-20-2010, 10:04 AM   #9
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Very cool.
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Unread 01-20-2010, 11:29 AM   #10
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Quote:
Originally Posted by medic83 View Post
Sic!!! I'd buy it.... If we build up our rears like that, it's so much easier to keep all tires on the ground even with ifs
With 37" tires - how would that fit?
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Unread 01-20-2010, 11:31 AM   #11
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Quote:
Originally Posted by Mikestang View Post
Where did my post go in this thread that I made yesterday?
DUnno, did yu post to this thread and actually press the posted button? I have had where I type a response but don't click the button.
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Unread 01-20-2010, 11:42 AM   #12
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With extended rear bumpstops, u could limit the uptravel but still have droop. With longer bumps, aren't u just lowering the fulcrum point without loosing droop???
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Unread 01-20-2010, 12:10 PM   #13
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Yea, I posted and proof read it and even edited the post. Ah well...

The jist of the post was, while that's a pretty creative 3 link set up, that center bar is going to swing through an odd arc as the suspension cycles, and the axle is going to deflect toward the passenger side more than the driver. Very creative use of available space, but not ideal geometry at all.

But you're going to spend that kind of money on a custom fab rear, why not build a cantilever suspension?


Here's a guy who did it to his Taco: http://www.customtacos.com/forum/showthread.php?t=60088

Cantilever suspensions are tried and true. You also don't need wheel spacers since there no shocks for the wheels to rub on. I applaud Metal Tech for creativity, but don't think it's a very practical design. I'd love to see a CAD image of the arcs each of those 3 arms trace through and the resulting range of axle movement.

To do a true 3 link you'd want to cut up into the cab and fab up some sort of brace in the rear seat area. Imagine this mustang torque arm suspension, but flip the torque arm to the top of the diff, and the other end of the arm up into the cab. You'd lose the rear bench seat, but could put in two solo seats on each side of the brace.
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Last edited by Mikestang; 01-20-2010 at 12:16 PM.
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Unread 01-20-2010, 02:20 PM   #14
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Quote:
Originally Posted by Mikestang View Post
Here's a guy who did it to his Taco: http://www.customtacos.com/forum/showthread.php?t=60088
It was easy on the Taco as it has leafs and now sway bars, etc. His suspension is 10x more simple to begin with.
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Unread 01-20-2010, 04:17 PM   #15
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Well, I'd hardly call it easy, there's a lot of math and pre-design to get a cantilever suspension to work right. Nor would I call that suspension 10x simpler. The only difference between that leaf suspension and our suspension is where the vehicle weight is carried on the frame (leaf hangers vs. our upper spring perch), and lateral axle control.
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Last edited by Mikestang; 01-20-2010 at 04:20 PM.
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Unread 01-20-2010, 04:38 PM   #16
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Quote:
Originally Posted by Mikestang View Post
Well, I'd hardly call it easy, there's a lot of math and pre-design to get a cantilever suspension to work right. Nor would I call that suspension 10x simpler. The only difference between that leaf suspension and our suspension is where the vehicle weight is carried on the frame (leaf hangers vs. our upper spring perch), and lateral axle control.
I know. what I mean is that it easier for Tacoma. I was working around this idea this summer and I had a few issues which make things very complicated. Looking at the Tacoma there, I would say it would of eliminate 9 out of 10 issues I saw.

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Unread 01-20-2010, 04:39 PM   #17
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In both cases the standard suspension geometry was thrown out the window anyway.

I like the concept, but Joel got pretty good travel out of the stock geometry. The biggest challenge was to fit longer shocks.

I think it is hard to see how the shocks and hoops will be missed by the tires with 14" shock travel on side to side flex, due to angle of the axle to the frame. With 10" shocks it became good challenge already with 35x12.5s.

WIll be great to see how it evolves.

The Taco setup looks very cool. Dunno if we have enough room under the FJ/4R for something like that with the travel we would like.
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Unread 08-29-2011, 08:12 PM   #18
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Has anyone tried a cantilever setup on a 4runner?

Im thinking about doing it. I like what Joel did and I am considering that, but I would really like to have the shock mounts higher on the axle.

If I do the cantilever I will be 3-linking it similar to what metal tech has done but re work it a bit. I don't think the third link will cause too much trouble because the axle is going to deflect to the passanger side by default because of the track bar. Having the links setup like that, I think, wouldn't be much different than having a triangulated 4-link, you are just taking out one link and using a track bar for the lateral stability

Its going to take a bit of work though since the track bar will need to be relocated above the axle rather than behind it to make room for the cantilever links and that means the third link mount will need to be moved forward on the axle.
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Unread 08-30-2011, 10:56 AM   #19
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I looked into this. There will be allot of cutting/welding activities with that.
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Unread 08-31-2011, 05:07 PM   #20
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Cutting and welding is really the only option you have to get any decent travel out of the rear
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