Rear wheel studs

[Kivyee]

Hello Folks,
Had a heck of a time trying to find this information so I thought I'd just post it up on the forum for posterity's sake. I'm slowly going through my MkIV (4 link live axle) roadster and taking care of small issues. When I removed my rear wheels I found that most of the wheel nuts were only on by 4 maybe 5 threads, which started my hunt for new wheels studs - the existing studs in there were Dorman 610-260 (12-20, .618 Knurl, 1 13/16 under head length) which matches what I believe to be Ford explorer axles. After going through the entire Dorman catalogue, any length that I wanted (3/8 to 1/2" longer) had too thick of a shoulder (e.g. the 610-290 which shoulders would protrude from the hub and were too big to fit the rotors.) I also didn't feel like getting the 3" Moroso studs and cutting them down.

I ended up with a Dorman 610-441.
223994

It's a .623 knurl which concerned me but pressed in just fine. 2 3/16 underhead length so 3/8 longer which was just about perfect.
223995


Here's how the wheel nuts look now.
Before
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After
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And made sure the cover still fits :p
223998

Also used a great tool that helped greatly with wheel stud removal and installation without the impact to the wheel bearings from pounding it out. Got the idea from a youtube video.

https://www.amazon.ca/dp/B099WQJYM9?ref=fed_asin_title

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Easily presses the studs out and almost as easily presses them back in - I used a lisle tool to get it started to make sure it goes in "square", but I didn't want to potentially damage the stud threads to pull them in.

[cv2065]

As an FYI, a machine shop will press these in for $20.

[rich grsc]

Ya, after you remove the axles

[J R Jones]

Kivyee,
Have you checked to see if your lug nuts are compatible with your wheels?
Some wheels have counterbores in the lug holes and the lug nuts are to have a projected nose that fits in each lug hole, accounting for more threads and concentricy wheel to hub.
I have seen your circumstance before using common taper-seat lug nuts inappropriately.
jim

[mrglaeser]

Kivyee,
Have you checked to see if your lug nuts are compatible with your wheels?
Some wheels have counterbores in the lug holes and the lug nuts are to have a projected nose that fits in each lug hole, accounting for more threads and concentricy wheel to hub.
I have seen your circumstance before using common taper-seat lug nuts inappropriately.
jim

Agree with Jim double check the lugs are compatible. I'm pretty sure these are what I picked up as spares.
https://www.autozone.com/p/white-knight-wheel-lug-nut-213044/883452

Interesting use of a ball joint separator. For install I used a tool like this:
https://www.amazon.com/HUIOP-Installer-Strong-Durable-Trucks/dp/B0G34KXS5M/

I also ordered an axel upgrade kit from LMR which came with studs. But it doesn't list the specific part # for the studs. But I think they are these
https://lmr.com/item/LRS-1107A-10/mustang-rear-wheel-stud-kit-10pc-79-04
1 31/32" in length. So only an 1/8" longer than your originals. They fit fine. I'm also running a live axle 4 link. My axel came out of an 87 T-Bird (Superbird).

[Kivyee]

I used the same nuts that were on the wheels, (ffr halibrands), so I havent checked the the nut cone angle, but they looks to be evenly matched w the wheels.

[Kivyee]

Ya, after you remove the axles

Yeah and I didn't feel like doing that yet, since I'll probably get the rear end regeared next year.

[J R Jones]

Kivyee,
I'm not sure my suggestion was understood. I bought a car and wheels held on by lug nuts like Mr Glaeser suggested but these are the style that is appropriate for that American wheel:

https://www.summitracing.com/parts/crr-27804-4?seid=srese1&ppckw=pmax-vf-cragar&gclid=Cj0KCQiAprLLBhCMARIsAEDhdPeDOWc6lYvJyFWrrm2s 1ziERNUXT7FNntYBv-M5deLfjHz3JA61h8kaAjt0EALw_wcB
Size and thread TBD.

The problem with the as-delivered car was poor thread engagement as you described. The extended nose lug nuts corrected the problem and improved the torque load transfer from axle hub to wheel.
jim

[rich grsc]

I agree, you have the wrong style lug nuts

[Kivyee]

Kivyee,
I'm not sure my suggestion was understood. I bought a car and wheels held on by lug nuts like Mr Glaeser suggested but these are the style that is appropriate for that American wheel:

https://www.summitracing.com/parts/crr-27804-4?seid=srese1&ppckw=pmax-vf-cragar&gclid=Cj0KCQiAprLLBhCMARIsAEDhdPeDOWc6lYvJyFWrrm2s 1ziERNUXT7FNntYBv-M5deLfjHz3JA61h8kaAjt0EALw_wcB
Size and thread TBD.

The problem with the as-delivered car was poor thread engagement as you described. The extended nose lug nuts corrected the problem and improved the torque load transfer from axle hub to wheel.
jim

Ah I thought you might have referred to a different cone angle on the nuts - I see what you mean now, would have probably been an easier fix (if the OD of the extended shank fits the ID of the lug hole in the wheel) - but all my new studs have already been pressed on :p

Unfortunately looks like I have a bigger issue to deal with, as I'll detail on another post

[RonJon24]

Kivyee,

I literally just ordered and installed the same rear wheel lug bolts....

If anyone has a clear recommendation for off the shelf lug bolts that are "correct", then please share if possible.

Thanks, Nick

[rich grsc]

Ah I thought you might have referred to a different cone angle on the nuts - I see what you mean now, would have probably been an easier fix (if the OD of the extended shank fits the ID of the lug hole in the wheel) - but all my new studs have already been pressed on :p

Unfortunately looks like I have a bigger issue to deal with, as I'll detail on another post
Regardless of the longer studs, if the rims you have are designed to use the extended shank lug nuts, then that is what you need to use. The rims should determine what lug nuts you use. Check to be sure

[Kivyee]

Regardless of the longer studs, if the rims you have are designed to use the extended shank lug nuts, then that is what you need to use. The rims should determine what lug nuts you use. Check to be sure

Understood - It's the standard halibrands that FFR supplied - as far as I can tell these are the same nuts that they supplied.