Question on axle studs

[JWH]

Would these axle studs be what was originally installed on a very early (Carryover) 1966 GT350? Notice the thicker shoulder of the stud near the axle face.

[Bob Gaines]

Would these axle studs be what was originally installed on a very early (Carryover) 1966 GT350? Notice the thicker shoulder of the stud near the axle face.

How far do those studs protrude out from the surface of the hub? Maybe just the angle of the picture but they look significantly longer then typical. The picture makes me think of the longer studs we press into the axles and front disc hub on open track cars in conjunction with the longer lug nuts for more clamping power.

[TA Coupe]

I started using those years ago on some of my cars. Bought them from Ford but you can get Dorman ones that are the same. Part number in the pictures.

    Roy

[JWH]

I ask because I ordered new 10 X 2 1/2" brake drums and they are giving me fits locking up when I mount the tires. I finally figured out the five holes in the face of the drum are not large enough to clear the thick shoulder. So when the tires are mounted, the drum is off-kilter. It sounds like I need to pull the axles and install the stock studs or get the five holes in the drums machined a bit larger. Thanks for the replies.
     

[TA Coupe]

As you can see in my last picture, I had the studs shoulder turned down so there would be no problem like you are talking about. Hope this helps.

     Roy

[JWH]

Roy, I didn't notice the machining done on the stud in the last picture. Thank you for pointing that out.

[Bob Gaines]

I have track Shelby's and street Shelby's . With that said unless a track car and if you are having to take the studs out for the drum problem reason anyway then it would be most prudent in my opinion to put back the original stock type studs in your historical significant carry over street car.

[pbf777]

    To the best of my knowledge those studs are a replacement from the original equipment; that may present the proper threading but might prove a tad long, so be careful and measure both the internal threaded and overall lengths of any intended "capped-nuts". 

    Generally those with the elongated type shoulder engineering protruding thru the axle flange face are intended to provide location of the disc brake rotor (generally drums utilize the axle end "register), and considering the engineering appearance, for a vehicle of the of past applications, for the front wheel positions, in the period of vehicles which were equipped with mixture of disc & drum braking systems. 

    But also note that it is not considered a good practice to machine studs in such a manor!  This as they are of a "forging" with "rolled" threading so as to preserve the materials "grain-flow" which enhances the strength and durability, which is compromised with the machining process.    

    Scott. 


   

[TA Coupe]

Scott, I didn't have the threads machined just the shoulder.

     Roy

[pbf777]

    Yes, I realized that from the photo previously; and I do realize that the shoulder is still of a greater diameter than that of the minor thread point, so not the worst case scenario, but it 'still' is not a recommended procedure. 

    Scott. 

[TA Coupe]

You brought up "Rolled Threads" so I thought you thought they had been machined also. I've had some on the car for approximately 40 years so I'm not to worried. I've had 3 or 4 stock studs brake over the years though.

  Roy

[pbf777]

     No, "rolled threading" is not a cutting process, more of a displacement/compression process, with no material being separated from the parent whole.   

     Scott.

[TA Coupe]

I know what Rolled Threads are. Much preferred over "cut" ones

     Roy