Replacing LH thread wheel studs front and rear 2200 2500 lb axle

My van is a 1969 A-108 Custom Sportsman with a 318 automatic I've read the few threads regarding replacing left hand (LH) wheel studs and I'm looking for information on choosing the correct size RH studs for the rear axles.

After reading the thread "This stud's for you" from 2013, the person posting recommended Moser part number MSR-8368, but these were for the front hubs with 2200 lb axle. I have the 2500 lb. front axle

I did read about NOT pounding out the studs but to grind the back of the head and then use a 3/4" hole saw to cut the weld from the brake drum.

For the rear axle I was able to pound out the LH studs easily. The RH wheel studs I had ordered from Rock Auto do not fit, they are too loose.

I'm looking for a longer RH thread stud like the Moser brand so I can fit a wider wheel in back. Let me know what you've done and or what you recommend. Thanks!

68vanman wrote:My van is a 1969 A-108 Custom Sportsman with a  318 automatic I've read the few threads regarding replacing left hand (LH) wheel studs and I'm looking for information on choosing the correct size RH studs for the rear axles.

After reading the thread "This stud's for you" from 2013, the person posting recommended Moser part number MSR-8368, but these were for the front hubs with 2200 lb axle. I have the 2500 lb. front axle

I did read about NOT pounding out the studs but to grind the back of the head and then use a 3/4" hole saw to   cut the weld from the brake drum.

For the rear axle I was able to pound out the LH studs easily. The RH wheel studs I had ordered from Rock Auto do not fit, they are too loose.

I'm looking for a longer RH thread stud like the Moser brand so I can fit a wider wheel in back. Let me know what you've done and or what you recommend. Thanks!

I'm kind of in the same boat as you and wish I had an answer for you.
I am going to replace some studs and was planning on leaving left handed threads on the van.
I was going to go with Rockauto. I may need to do some more research before I purchase them.

If I find any helpful info I'll be sure to post.

Why did you NOT include the part number of the part that doesn't fit, then ask for someone to look up what you do need?
Here is the info on the first page of results for searching "1969 dodge a100 wheel studs"
Dorman 610-039.1
specs on the same page
0.625 in. Knurl Diameter
0.719 in. Shoulder Length
Serrated Stud without Clip Head
1/2 in.-20 Thread Size
1.625 in. Under Head Length

You said " The RH wheel studs I had ordered from Rock Auto do not fit, they are too loose.

I'm looking for a longer RH thread stud like the Moser brand so I can fit a wider wheel in back."
So I'd guess your requirements are
bigger than (but no measurement) 0.625 in. Knurl Diameter
0.719 in. Shoulder Length
Serrated Stud without Clip Head
1/2 in.-20 Thread Size
longer than  (but no measurement) 1.625 in. Under Head Length

So, here is the Dorman wheel stud catalog in .pdf format.
https://static.dormanproducts.com/document/wheellugstudattributes.pdf
Look down the list and find the part that fits your criteria.
Post your answer!

BTW, Moser does NOT have an online spec/catalog page.
They do have a tech support page
https://www.moserengineering.com/tech-support/
which has contact info. Ask them and when you have a good answer, post it here!

My 2 cents but it sounds like I'm being reprimanded for honestly forgetting to add some information. It happens, we know what we want to convey but it doesn't translate to the keyboard sometimes. I would think new members or viewers shy away from posting because they don't want their head handed to them if they don't have all the information in front of them.

Just so you know, the box the wheels studs came in didn't have a p/n on it, but I did find it later on my order form. I had ordered Wagner BD61056, .625" knurl diam. which at the time I ordered them, assumed (wrong), that that would fit both front and rear hubs.

The knurl diameter on the wheel stud for the REAR are .665"
I found a set from Moser, p/n MRE 8040 that match and are a bit longer. I decided I didn't want the 3" long stud.

The front studs measure at .625" knurl diameter


Lesson learned, always measure before you order. Click on the info button when you're ordering on Rock Auto or other sites so you know what you're ordering.

While I was at it. I decided to mount a 15" x 8.5" Ansen wheel with 4.5" backspacing. It seemed to fit fine without the tire. I was considering a 275/60 15 tire. Just in case anyone was wondering about the fit. I know this is covered in other forum topics.

I'll post some pictures once I figure out how to rotate them so the don't show up sideways.

I'm curious why lots of people seem determined to replace left hand wheel studs. Beyond not having to remember to turn the opposite way you're used to when changing a tire, is there something else I'm missing?

In my case, a few of the studs had threads that we worn and near cross threaded and one was broken. Certain aftermarket wheels, especially aluminum wheels may take a different style lug nut and the LH nut may not fit or secure the wheel properly. Lastly, replacing front drums required cutting out the old studs from the drum and hub.

Pic 1- left to right: original Rear LH stud .665", Moser 8040 Rear .665" stud, Wagner BD61056 Front .617" stud, Moser 8368 Front .625" stud.

while that stud is longer, the treaded length is the same! summit has them in several lengths. longer is better but allow a little for seating properly. you don't want the lug bottoming out on stud! https://www.summitracing.com/search/part-type/wheel-studs?SortBy=Default&SortOrder=Ascending&tw=wheel%20st&sw=Wheel%20Studs&N=4294909385%2B4294947593

68vanman wrote:Pic 1- left to right: original Rear LH stud .665", Moser 8040 Rear .665" stud, Wagner BD61056 Front .617" stud, Moser 8368 Front .625" stud.

Let me try this again...

Correct me if I'm wrong but for the front stud, don't you need the shoulder to be close to the same length(and diameter) as the original stud to hold the drum firmly in place on the hub? There is not enough material above the knurled part on the 8368 stud to do that. I would think that could cause the drum to be loose on the hub)have some play/movement), not be centered on the hub when tightened and could cause excessive wear on the brake shoes,or worse.

My front studs are. Disclaimer: all measurements are + or - a thousandth or two...
Knurl.....=.625
Shoulder= .630
Length...= 1.560(1 9/16")

Hub thickness .= .370
Drum thickness= .265
....................= .635 +/- shoulder

Looking on the Dorman PDF there are numerous options with a longer Shoulder. One that matches my lugs is part # 610-178
A few others I found...
Part # / Knurl / Shoulder / Length
610-039 - .625 x .710 x 1.625(1 5/8")
610-109 - .625 x .563 x 1.625
610-153 - .625 x .625 x 1 688(1 11/16")
610-273 - .625 x .656 x 1.625


EDIT: based on photos on Advance autos website...

610-039, the entire shoulder is knurled
610-109, Looks similar to my stock stud
610-153, Looks like my stock stud
610-273, Smooth shoulder at the base and knurled up near the threads where the drum would be sitting.

I'm going with the slightly longer 610-153 for the front and the Moser 8040's for the rear. I'm placing and order with Summit in a few minutes...

The 610-153 diameter is too small for my front hubs. They slip right into the hole and spin.
I don't know what I was measuring the other day but my front lug studs aren't .625 diameter. Maybe I was just going along with the .625 measurement everyone was mentioning But I'm pretty sure I checked with the digital calipers. The average is diameter of all the old studs is .635.

Of course only I realized my mistake after I received the new studs...

The Dorman link Rod posted isn't working now. I found the PDF on Dormans site.

https://static.dormanproducts.com/document/web/wheel-lug-stud_attributes.pdf

The closest I can find are the 610-136 but the shoulder is too short, the knurl is out near the threads instead of down near the head of the stud where it would contact the axle and the stud is kind of longer than I want...

Any ideas? I have 11" drums on the front.

Kudos to Vintage Vans member @michael! He contacted me a few days ago trying to help me find wheel studs for the front of my van...and succeeded!
His van that uses the larger diameter front studs like my van does. Most members have mentioned the 0.625 diameter studs fitting. Every source I looked at online only lists the 0.625...even for the 11" drums.
michael found his receipt from when he had an alignment shop order some for him.

These are for 11" front drum brakes. The Dorman part number is 610-315. Dimensions...

610‐315    Dorman ‐ AutoGrade ‐ Boxed

Knurl Diameter = 0.641
Shoulder length = 0.625
Under head length = 1.625
Right Hand Thread = 1/2"‐20

https://static.dormanproducts.com/document/web/wheel-lug-stud_attributes.pdf

https://www.amazon.com/gp/product/B0011MW7SY/ref=ask_ql_qh_dp_hza

I don't know if it's the drum diameter that dictates what is needed or what but these will work! As always get your studs dimensions before ordering.

I ordered the Moser 8040's for the 10 drum rear. Both sets I ordered are slightly longer than the ones I took off. Besides the length being slightly longer(fine by me), they're almost a perfect match.


I hope this info helps someone else