I need to replace wheel studs in my '40 hubs...anyone have the part number for the correct ones? I can just see the look on the parts store employees face if I ask him about the right stud!!!
i just replaced some in the drums I have - I had to use 68-1107 from macs - the ones which were suppsed to fit didnt and I had to send them back, they were not long enough to be swedged onto the drum like the originals - the 68-1107 have a knurled part at the head and that had to be hammered/pressed into the hub.
FYI, If you are replacing a stock stud that broken or stripped in a stock brake drum you probably wont be able to find it at your local auto parts store. The ford style stud is best purchased from a place that sells you gennie parts. If you have purchased the replacement style brake drums or want to run wires with a spacer, they require a special longer stud and the gennie design is too short. Since there is no longer length original design part you will have to use the after market studs that press in. None of these are the correct shank size as the old ford hole, so the hole must be reamed open to compensate for the slightly large shank size and serration flutes. The closest stud is 1/2" -20 by 1-5/8 long with a .621 shank.
So you would ream holes to .625 for shank clearance and serration flutes then provide the "fit" ? I may, actually want to run '35 wire wheels.
Depending on the brand of stud and accuracy of your caliper, the studs serration diameter .625 usually run around .610 so in that case you'd ream hole to about .600 to give the serration some metal to bite into. You will have to compare the readings on your measure and part to be super correct.
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