K-FRAME STITCH WELDING......THOUGHTS?

Suspension, Steering and Chassis

  1. CFD244

    CFD244 These pretzels are making me thirsty. FABO Gold Member

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    Hi Folks

    So I'm putting the front suspension together and I am cleaning up the K frame. I have already re-welded all of the shit factory welds for the engine and steering mounts, and welded in some extra support around the lower control arm mounting bosses. Just wondering what everyone thinks about welding the upper and lower section of the k frame together all the way around the perimeter? Input appreciated. Thanks.

    BTW......Mild 340 car with auto transmission and 3.23 gears. P/S and P/B.
     
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    • ChrisRomello

      ChrisRomello Well-Known Member

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      Box in the steering box mounts while you have it out!
       
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      • CFD244

        CFD244 These pretzels are making me thirsty. FABO Gold Member

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        Pics?
         
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        • Wayne's World

          Wayne's World My World, My Universe, My Garage

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          Yes stich up any areas that look funky. It's not necessary to fully weld it.
           
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          • Dana67Dart

            Dana67Dart The parts you don't add don't cause you no trouble FABO Gold Member

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            IMHO, if some things are too stiff they will put stress on other areas.

            Not sure it would apply to what your asking, but who knows the intent of the factory welds. Speed? Price? Engineering?
             
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            • Rat Bastid

              Rat Bastid .004 light

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              I fully weld every seam on the K member. They are stamped steel. Weld everything.
               
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              • CFD244

                CFD244 These pretzels are making me thirsty. FABO Gold Member

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                You know, that's why I decided to ask this question. I am thinking the same thing.
                 
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                • ChrisRomello

                  ChrisRomello Well-Known Member

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                  A74A5D8A-2BFB-4CD9-8CD7-5484C69A1983.jpeg 6C1B5AE4-0A2E-4FA3-9EBA-60F8B317627B.jpeg
                   
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                  • 1969383S

                    1969383S FABO Gold Member FABO Gold Member

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                    My 69 BB K was pretty Good.

                    Lots of 2" wire sections left though! I ground those off before a epoxy refinish!
                     
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                    • Princess Valiant

                      Princess Valiant Duster specialist

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                      Yup, even i am finish welding and cleaning up the factory welds on my slant six K frame that will have a slant on it. The factory did not take much time on any of these cars because they were trying to get paid for them as quick as possible and as long as no one complained over the years then all was ok for them, but that still doesn't mean they did a good job welding these K frames.

                      I like the idea of gussets around the where the lower control arm studs go into the K frame. So many of these cars died early because the lower control arm stud sleeve broke and wobbled into a big hole and huge clunk that scared the shit out of the drivers who would junk the car for that very reason.
                       
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                      • pishta

                        pishta I know I'm right....

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                        My box mount cracked. I would definately weld that thing up as good as possible. When it cracks, the front wheels act like bad shopping cart wheels at about 15 mph and will shake your radio right out the dash.
                         
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                        • 72bluNblu

                          72bluNblu FABO Gold Member FABO Gold Member

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                          I reinforce the steering box mount, LCA pivot tubes and fully seam weld the K’s for my cars. You’re not going to make the K “too stiff” by doing that.
                           
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                          • mbaird

                            mbaird mbaird

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                            The too stiff thing came from one of Uncle Tony's first shows. I couldnt follow his logic .
                             
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                            • 72bluNblu

                              72bluNblu FABO Gold Member FABO Gold Member

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                              That's because it isn't logic. That "show" is full of so much bad information it's not even funny. Metallurgy, work hardening and stress/strain fractures are clearly not something Tony is well versed in.
                               
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                              • CFD244

                                CFD244 These pretzels are making me thirsty. FABO Gold Member

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                                Thanks to everyone who chimed in. Welding them up seems to be the consensus. I'll continue on.
                                 
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                                • kg340

                                  kg340 Well-Known Member

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                                  What I did on mine, right or wrong, instead of welding perimeter of K-member, I took a spot weld cutter and cut only through top layer of metal in between factory spot welds, and then plug welded each of them. Then I installed the Firm Feel K-frame stiffening kit, and rewelded around motor mounts etc...
                                   
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                                  • AAndrews

                                    AAndrews MOPAR .. Move Over, Plymouth Approaching Rapidly!

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                                    Weld it all, and I see you have gussetted the steering box mounts. Also consider the larger 11/16 seamless tie rods from Firm feel.tie rods,. Also , this is the perfect time to check the torsion bar mounts in the crossmember. You may need to weld them as well.
                                     
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                                    • CFD244

                                      CFD244 These pretzels are making me thirsty. FABO Gold Member

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                                      Cross member is new, as is everything else on this pig!
                                       
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                                      • JoesEdge

                                        JoesEdge Well-Known Member

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                                        Weld it up! I welded and powder coated mine. I tried to find the best pics I could. Yes, do weld up the steering box mount. That area flexes quite a bit.

                                        IMG_20170627_072427.jpg

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                                        IMG_20170625_124015.jpg
                                         
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                                        • JoesEdge

                                          JoesEdge Well-Known Member

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                                          A couple more.

                                          IMG_20170628_091337.jpg

                                          IMG_20170701_092917.jpg
                                           
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                                          • matthon

                                            matthon Well-Known Member

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                                            The LCA pivot tubes are not welded to the k in the front.
                                            I cut access holes and welded from the inside.
                                             
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                                            • CFD244

                                              CFD244 These pretzels are making me thirsty. FABO Gold Member

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                                              Well, that was fun!:) Thanks for the input everyone. Now, on to the control arms:thumbsup:

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                                              • 4spdragtop

                                                4spdragtop CONGRATS NORTH AMERICA! FABO Gold Member

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                                                I would just clearcoat that!:thumbsup:
                                                 
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                                                • CFD244

                                                  CFD244 These pretzels are making me thirsty. FABO Gold Member

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                                                  LOL.....A blind guy would be happy to see it.
                                                   
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                                                  • pishta

                                                    pishta I know I'm right....

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                                                    @CFD244 is that stick welded? That's nice looking! That untouched stock steering gear mount is a joke! I remembered pulling mine and seeing 1 crack in it and the thing was flopping around like a loose tooth. I just bought a new one ad that one had a far better weld where the old one cracked. Maybe it was a Monday 1st shift job. In hindsight I should have kept it and welded it up for an extra but that was a looong time ago.
                                                     
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