3 link vs 4 link

[mazspeed]

Ok guys I have some questions on both systems. When I rip the car back apart at years end I would like to know what system is best. I have some questions on both. First the Dynamics 3 link. How much of the rear seat will still be useable? It looks from the install pictures that you almost have to rid the rear seat, but it's hard for me to tell. Another point, I have enclosed a picture of the lateral load bolt that I was curious about.
My questions are these. Is that bolt holding the entire unit from going to each side? To me it seems a bit scary that the entire rear is being held in place with this bolt. Also like my Comp bars, the end links seem to hang a little low as well. Also can you run any kind of rear end, or do you have to run a certain carrier? I see in all pictures that I have seen run the same carrier? It also seems like twice the fabrication for this system then a 4 link? Am I wrong?

Ok now the DSE system. I know a little bit about this already other then the new piece that is now coming in for the fix from the original design. Does anyone have a photo of this piece, and how does it connect to the system? How strong are these swivel links? How do they affix to each other? The top 2 links on the DSE seem very short, is this any kind of control issues with this design? Also the panhard bar that they use in the DSE system to keep the side from going back and fourth seems small. Also what about the rear seat? I will tub the car, so I know that the rear seat will have to again be modified, but I don't think, well really don't know if the DSE system will be as intrusive as the 3 link as far as the rear seat goes. Any ideas on that? I know that with the DSE system and when I tub it, I won't lose my custom gas tank, is this the case for the 3 link??
I don't mean to nit pick each system, but I have to for my own gain. I think both systems are the best in the business from where I stand and I need to know which is best for me. I can drive better then most, but cannot design anything other then custom lighting, so I'm at a loss, so this is why I ask. Sorry it's so long winded guys.

[Matt@Lateral Dynamics]

Ok guys I have some questions on both systems. When I rip the car back apart at years end I would like to know what system is best. I have some questions on both. First the Dynamics 3 link. How much of the rear seat will still be useable? It looks from the install pictures that you almost have to rid the rear seat, but it's hard for me to tell. Another point, I have enclosed a picture of the lateral load bolt that I was curious about. My questions are these. Is that bolt holding the entire unit from going to each side? To me it seems a bit scary that the entire rear is being held in place with this bolt. Also like my Comp bars, the end links seem to hang a little low as well. Also can you run any kind of rear end, or do you have to run a certain carrier? I see in all pictures that I have seen run the same carrier? It also seems like twice the fabrication for this system then a 4 link? Am I wrong?

1) You will need to run a split-bun type of rear seat with our kits. See attached picture.

2) Yes, the bellcrank and it's bolt and bearing are what holds the rear end laterally in the car. The bolt is a class 10.9 M20-2.5 and has an approximate shear strength of 36,500psi, and the bellcrank itself is made out of 2024 T6 aluminum, and was proven in FEA at 6,000psi in yield. Mark's had the prototype, which is a slightly inferior design, on his car for nearly two years now with absolutely no problems. Beyond that, this same Watt's setup and it's variations have been on extremely fast road race cars for many years. This is not a new design, we just adapted it to our likeing.

3) The LCA brackets on our rear ends will be off the ground by 4 5/8" with a 335/30/18 tire. This is a bit low, but we're not designing 4x4 suspensions either. That height was arrived at in order to get the excellent geometry we built into these suspensions. Ground clearence was kept in mind throughout the design process, however it mainly took a back seat to performance.

4) We supply fully welded 9"s with each kit, and this is the only option. The 9" is the obvious choice when you consider the fact that you can't reliably weld an UCA bracket to a cast iron housing. That, and the huge amount of aftermarket support for the 9". You can run any factory or aftermarket 3rd member you choose.

5) We tried our best to make this kit as easy to install as possible, but at the same time, we refuse to make huge compromises in geometry and function for the sake of a "bolt-in" kit. We realise that this will drive some potential customers into the arms of our competitors, and that's ok.

[customcam]

Is there a limit on how heigh the wheels can be? say a 19 or 20 inch rear wheel?

[Matt@Lateral Dynamics]

20's on a B body Mopar.

[murtah]

The "new" part for DSE's Quadra link is a reiforcement for the Pan hard bar bracket on the pass side frame rail. The attached letter states that if you use your car on the track, the reinforcement is recommended. They discovered this recently when they were testing the rear on a track.

You can still use your stock rear seat but you need to trim some of the springs on the bottom as well as the upper sides for the mini tubs.

[Dodgenut64]

wow nice B body, got anymore pics?