Would like some PST recommendations

Performance Suspension Technology

  1. SABLT194

    SABLT194 Well-Known Member

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    Hey James,

    I'm doing a street build of a 71 Dart Swinger and need some suspension recommendations. This is a street only car but I would like to vastly improve the handling characteristics. Here's some info on the build

    1971 Dodge Dart
    431 CID Small Block (340 Block)
    904 Automatic Trans
    8 3/4 rear
    Manual Steering
    Disks on Front & Rear
    Manual Brakes
    110#/inch leaf springs lowered 1"
    Spring Hangers 1/2" offset in
    Stock tabbed LCA's reinforced
    Stock style disk brake Upper Control Arms and balljoints

    So I'm thinking I'll still need,

    Larger Torsion Bars
    Front Sway Bar
    Rear Sway Bar
    Street Shocks

    What would you recommend for my project?

    Regards,
    Steve
     
  2. halifaxhops

    halifaxhops It's going to get stupid around here! FABO Gold Member

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    @PST
    They will hook you right up great company!
     
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    • JoePole1

      JoePole1 A dude in a B body FABO Gold Member

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      Your plan is good but add C-body HD tie rod sleeves, poly bushings and frame connectors. No need to go crazy with welding to floor pan. Can even build your own out of bar stock or
      Bolt-In Frame Connector Kits
      Those are bolt in but I would weld. I went with larger Hellwig sway bars on my B-body.
       
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      • rumblefish360

        rumblefish360 So close, yet so far away FABO Gold Member

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        Them Jersey boys will set ya right up. Rome there on line store, give them a call. The only thing I can not point to is a shock for you. 100% street cruiser? Some strip?

        If you need bushings, I suggest the Poly Graphite.
        Good stuff.
         
      • SABLT194

        SABLT194 Well-Known Member

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        Oh, I forgot to mention that I already installed USCT subframe connectors and front & rear torque boxes.
         
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        • Mattax

          Mattax Just the facts, ma'am FABO Gold Member

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          no rear sway bar.
          Front sway bar. stock or 1.125
          T-bars- .91 to 1.03

          For general Penna roads - a tire with decent sidewall hieght and multi-condition traction. Great traction in perfect conditions on smooth concrete will mean nothing if you lose it on gravel or pothole or any of the other common conditions...
          And no KYB shocks. Street shocks from your local supplier will do better for same reasons. Or go big bucks.

          edit: just saw this is in the Sponsers section. Mods - feel free to delete if inappropriate. James from PST. Same - let me know and I'll delete.
           
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          • PST

            PST Marketing Manager FABO Vendor

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            I like to build my cars in stages as I always seem to be on a budget myself. So anything that I do I do not like to do twice. What I basically means is if I have to take something apart on the suspension in order to get to the part I am replacing and it itself is questionable I replace it.

            I do have some questions does your car currently have a front sway bar? If so what diameter is it? Second is the front bushings currently rubber or poly at this time.

            Personally I would start with torsion bars and shocks if you currently have a front sway bar and see if your happy with the performance. Torsion bars should be a minimum of 1". We have the 1.03" which are a favorite of many on the forum here. For shocks you have options depending how extreme you want to go. We offer KYB, Bilstien or Viking. KYB is a good economical shock but you will see from a quick search on the forum that one of its cons is that they can be rather stiff. Bilstein is my opinion is the best bang for the buck with the digressive valve it allow for a comfortable ride and gives a nice balance between street and performance . Than there is Viking double adjustable shocks. These shocks are awesome but the take away is the price, but if you are looking for a shock that will be able to sustain various upgrade over time and grow with your build they are a good choice. I like them as you can set them on the soft end of their settings when cruising with the family. But when you want to go out for a cruise on some winding roads you can crank them up and they respond and come alive.

            The torsion bars will reduce body roll feeling but the shock will dictate overall ride quality and sway bars will be keep your tires firmly planted.

            James
            PST
             
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            • SABLT194

              SABLT194 Well-Known Member

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            • SABLT194

              SABLT194 Well-Known Member

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              Thanks James,

              Can't call this a budget build at this point. It's a full rotisserie resto project. This was a 318 car and has no sway bar. Front suspension is being converted to disks as part of the project. Toothpick rear is gone with an 8 3/4 replacing it. Fresh 340car leaf springs with 110# spring rate (lowered 1")

              Subframe & Torque Box

              Regards,
              Steve




              subframe connectors.jpg
               
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              • PST

                PST Marketing Manager FABO Vendor

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                Are you using the stock 1971 K member?
                 
              • SABLT194

                SABLT194 Well-Known Member

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                Yep- But I have some LCA's that have tabs for a sway bar
                 
              • SABLT194

                SABLT194 Well-Known Member

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                Looks like the only 71 Dart Swinger sway bars from PST are 7/8" rear and 1 1/8" front. That with 1.03" torsion bars, and a set of Bilstiens should do it. Right now I was planning on running rubber bushings.

                Will that rear sway bar fit with my springs moved in 1/2"?????
                 
              • skep419

                skep419 I'm the guy that likes SPAM

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                I've got a set of their 1.03 bars. work great.
                 
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                • PST

                  PST Marketing Manager FABO Vendor

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                  For primarily street use and wanting comfort rubber is ideal. I would say what you have outlined parts wise will attain the handling you want. You may have a clearance issues on the rear as the bar clamps to the diff and the end links line up with the frame rails. Please see the instructions on our website under the documents tab.

                  Thanks
                  James From
                  PST
                   
                • SABLT194

                  SABLT194 Well-Known Member

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                  Copy That James.
                  I'll look on the site. I can fab just about anything to move the endlinks around a bit to clear things.

                  Regards,
                  Steve
                   
                • JoePole1

                  JoePole1 A dude in a B body FABO Gold Member

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                  Not a handling issue but look into a 73 and newer k-member to take advantage of spool type motor mounts. Might even find the bigger disc brake caliper mounts for 11.75 rotors. Pin style are best.
                   
                • Dfr360cuda

                  Dfr360cuda Diagnosis... Plum Crazy.

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                  ...........................

                  I used PST rubber on my 74. I'm very happy with everything. Old Man Mopar will be happy to know that you recommend rubber also.
                   
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                  • SABLT194

                    SABLT194 Well-Known Member

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                    OK James,

                    Order was placed online this AM. I added FABO member name to the comments. Gim'ee that FABO discount please.

                    Regards,
                    Steve
                     
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                    • SABLT194

                      SABLT194 Well-Known Member

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                      James,
                      Do you have any brackets that bolt to the stock location on the K member to mount the front 1 1/8 urethane bushings? Something like this??

                      upload_2020-3-30_6-4-2.png
                       
                    • PST

                      PST Marketing Manager FABO Vendor

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                      The ones in your picture there look like the helwig design.
                       
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                      • SABLT194

                        SABLT194 Well-Known Member

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                        Yes it is. I was asking if PST has a bracket that mounts to the stock location on the K member.
                         
                      • PST

                        PST Marketing Manager FABO Vendor

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                        The one in our kit is a flat mounting tab that attaches to the K member. The instructions can be found on website under the documents tab for each vehicle specific sway bar.

                        Thanks
                        James From
                        PST
                         
                      • SixgunSal

                        SixgunSal Member

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                        Dumb Q...do you need to remove carpet etc inside to keep from burning when subframe connectors are welded in?
                         
                      • PST

                        PST Marketing Manager FABO Vendor

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                        If you are using the USCT than you will need to remove the interior prior to welding in.

                        Thanks
                        James From
                        PST
                         
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