Left vs right hand thread wheel studs.

Tires and Wheels (Mopar Hubcaps Too)

  1. Bills65Dart

    Bills65Dart FABO Gold Member FABO Gold Member

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    Hello good people,

    I read a few days ago about this left hand threads versus right hand threads on wheel studs. The person said the left hand thread studs should be used on the right side of the vehicle, and the right hand threaded studs on the left side of the vehicle. This was sort of the normal for it to have any purpose. But, today when getting new car tires on my car, instead of trailer tires, I discovered that the left hand threads was on the left side of the car. And the right hand threaded studs on the right side of the car.

    Anyone have any knowledge about this ? I just felt a bit like, ... have someone switched them at some point, or is this how Dodge did it. Or is this fellow off in his thinking ?

    If the left wheel had just a center bolt, and nut, it would be normal if the wheel spins forward to have a right hand threaded nut there to make it tighten itself, if you had a wrench on it all the time. But maybe life is not that simple. :)


    Bill
     
  2. RAT ROD AL

    RAT ROD AL I know just enough to be dangerous FABO Gold Member

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    Left on left , I believe is correct
     
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    • 1969383S

      1969383S FABO Gold Member FABO Gold Member

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      Left hand studs were on the driver side!
       
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      • kursplat

        kursplat Well-Known Member

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        left and right, describing a car does not work unless someone specifies thier point of view. drivers side / passenger side much better. left hand threads on the drivers side is correct
         
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        • 67Dart273

          67Dart273 FABO Gold Member FABO Gold Member

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          Nonsense. In the same era when my Mopars had LH thread, none of the wheels ever came loose. Neither did any of the Chivvies or Ferds that had all right hand thread.
           
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          • RAT ROD AL

            RAT ROD AL I know just enough to be dangerous FABO Gold Member

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            In Australia they would be on the passenger side
             
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            • kursplat

              kursplat Well-Known Member

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              yes, but i'd be standing on my head looking at it
               
            • RAT ROD AL

              RAT ROD AL I know just enough to be dangerous FABO Gold Member

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              From the rear , with your right eye shut. LOL
               
            • SGBARRACUDA

              SGBARRACUDA ROY FABO Gold Member Legendary Member

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              You for real? LEFT has always meant from the drivers point of view. Since Moby Dick was minnow! In 1974 I worked at a large repair shop. my boss hired a guy and his first assignment was to pull off the left fender off a 65 Mustang, He removes the passenger side. Said "When your facing the car, that is the left side" Fired on the spot, lasted 2hrs.
               
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              • RAT ROD AL

                RAT ROD AL I know just enough to be dangerous FABO Gold Member

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              • kursplat

                kursplat Well-Known Member

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                awesome, looks like you proved my point
                 
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                • moparmat2000

                  moparmat2000 FABO Gold Member FABO Gold Member

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                  Knock em out, put in all RH studs. The LH ones are a pain in the ASS anyways.
                   
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                  • SGBARRACUDA

                    SGBARRACUDA ROY FABO Gold Member Legendary Member

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                    Your right , most people would twist two of them off before they realized they were left hand thread!
                     
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                    • SGBARRACUDA

                      SGBARRACUDA ROY FABO Gold Member Legendary Member

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                      So on right hand drive cars you would pull? Right? Drivers left or right is universal.
                       
                    • RAT ROD AL

                      RAT ROD AL I know just enough to be dangerous FABO Gold Member

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                      I'm gettin confused.
                       
                    • Bills65Dart

                      Bills65Dart FABO Gold Member FABO Gold Member

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                      Like the 65 Dart I had in Norway, one wheel had 4 bolts with left hand threads, and 1 with right hand thread, and the other wheel had 3 left hand treaded bolts and 2 right hand threaded bolts. It was a challenge. This time I will get it right. I need two nuts, and one right hand threaded stud, and one left hand threaded stud with larger knurl, if that is possible to find.

                      Bill
                       
                    • kursplat

                      kursplat Well-Known Member

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                      cause' you're up too late, get some sleep :)
                       
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                      • Bodyperson

                        Bodyperson Pedal to the metal FABO Gold Member

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                        Ford and Chevy guys just use a cutting torch on the left side.
                         
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                        • DrEamer

                          DrEamer I suffer from cars on the brain!

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                          Funny you mention that, in theory the left handed threads made sense, in reality, not so much. Strangely, IIRC Ford put left hand threads on the left rear only in the 1980's on their F350 pickups. The only reason I know is I worked at a tire store in the 90's, and had to deal with it enough to know. We occasionally would set up the new guys and watch them try to figure out why the left rear lugs would not come off. You could not let them try for too long, since they could over tighten the lugs, or stretch the threads.
                           
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                          • 69_340_GTS

                            69_340_GTS Well-Known Member

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                            On any vessel, be it car, truck, aircraft, boat, missile, train, wagon, etc... the left (port) side is the left side of the driver when he's facing forward. Right (starboard) side is always the right side of the driver when he's facing forward. For some reason I thought everybody knew this....
                            lights1d.jpg
                             
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                            • toolmanmike

                              toolmanmike Moderator Staff Member FABO Gold Member

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                              Left/right always from the drivers seat looking forward.
                               
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                              • moparmat2000

                                moparmat2000 FABO Gold Member FABO Gold Member

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                                Yep "port" is left side as seated in the drivers seat. I had a 68 charger w those damn LH studs. I knocked em out with a hammer and went to my local corner auto parts store and bought 10 RH studs. Did the same w a 69 charger I had a few years later.

                                My 67 cuda and my sons 69 cuda are getting upgraded to cordoba big brakes and BBP. Thankfully It appears Chrysler gave up on that L/H R/H horseshit in the early 70s. Saved me the trouble.
                                 
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                                • RAT ROD AL

                                  RAT ROD AL I know just enough to be dangerous FABO Gold Member

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                                  This should clear this up.
                                  Look at your left hand, it should be on the end of your left arm.
                                  Spin around a few times and stop in a different position. Look at the end of your left arm. Your left hand should still be on it ! Same would be true if you did this while on your head spinning. Left is always on the left and right is always on the right, unless I'm wrong !
                                   
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                                  • kursplat

                                    kursplat Well-Known Member

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                                    i used to think some things like this were true, but after preforming a lot of training at my work over the last few years, i've realized that assuming everyone in a conversation agrees on the basic facts creates a chance at killing someone.
                                    consequently, i now need to be very careful, because i annoy the crap out of my wife :lol:
                                     
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                                    • Mattax

                                      Mattax Just the facts, ma'am FABO Gold Member

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                                      This thread is killing me! lol.gif
                                      Yes its normal, and your thinking isn't screwed up.

                                      Sometimes, but not always, there are markings on the nuts or the studs. Nuts will have a different color or line on them. Studs may have an L stamped on the head. One set of Crager closed nuts I have uses a different size hex for the lefties. They are easy to work with. All you have to do is run your clock backwards. laugh2-gif.gif

                                      upload_2019-7-26_11-14-58.png
                                       
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