Stud length the same front to rear?

[Shimmy]

call me lazy. i suppose i could take my wheels off and measure. hahaha.

are the front studs the same length as the rear studs? 77 bronco

 

[Apogee]

You're LAZY!

The lengths and configurations of the front and rear studs are different, why do you ask? Front studs are technically ~3/8" longer uninstalled (~2.18" front, ~1.81" rear), however that's because they retain the rotors to the inside of the hub flanges, so their stick through lengths are actually very similar to the rears. FWIW, the rear stud stick through length on my axles (F150 axles) is about ~1.28" and the front is ~1.35" give or take.

 

[Shimmy]

exactly what i was wondering. i'll be putting rear discs on from a 2004 E150 van.

 

[Apogee]

If you need/want a little extra length to account for the increased thickness through the rotor hat versus the drum, you could run the E150 van rear wheel studs, Dorman 610-441, as they're about 3/8" longer than the factory studs with a 2.19" under head length, noting that they have a quick-start nose, so they're not full threaded to the end. These studs also have an advertised knurl diameter that is .005" larger than the Bronco stud, making it suitable for a direct swap without any machining required.

 

[Shimmy]

If you need/want a little extra length to account for the increased thickness through the rotor hat versus the drum, you could run the E150 van rear wheel studs, Dorman 610-441, as they're about 3/8" longer than the factory studs with a 2.19" under head length, noting that they have a quick-start nose, so they're not full threaded to the end. These studs also have an advertised knurl diameter that is .005" larger than the Bronco stud, making it suitable for a direct swap without any machining required.

excellent! thanks