The Stovebolt Site Forums The Parking Lot Tons 'o Fun 1 ton flat bed lug bolts

Hello,
Can anyone tell me where I can get new lug bolts for the back of my truck. They gave me the wrong ones at Napa. I have the stock rear end, 18" tires, 8 bolts.
Thanks!
Chris

You need to search by dimension, find someone that knows what a dimension is, and get them to look through their book,or parts bin, maybe in the back room after all the teeny'boppers have gone home.

Ed

Fastenal. If you are lucky enough to have 1 of the original lug nuts, just let them match it up. If not, you can get nuts that will work-but aren't as heavy duty-at any good hardware store.
Somewhere (the constant lament of the rapidly aging) I have the Fastenal part number. When I find it, I'll post it>

I think the question is about bolts/studs, not the nuts.

Still need more info on what bolt pattern and wheels in question, something sounds fishy.

For the studs though I'd start at NAPA or another auto parts store with paper catalogs with pictures, an original stud to compare, and a pair of calipers to measure with.

Sorry, I didn't read that right. I had lots of trouble finding studs for my truck and the parts stores weren't able to help me.
I posted a "Parts Wanted" ad here on Stovebolt and was able to find some new ones thanks to the great people here.
Other avenues to look at include any of the wrecking yards that frequently list parts for our trucks on eBay,such as RPM Motors (no affiliation). They have been helpful to me. 888-223-1864

Jim, do you have a part number for the studs you found, is it the original GM part and number or a suitable replacement with a different part number?

Having a part number to hunt for usually helps. I don't have my original parts book handy, I'll look when I get a chnace.

I bought some for my 1 Ton a number of years ago. I bought them from LMC and they were listed for a 3/4 Ton. It took them three tries to send me the correct ones but I got them. They have them listed at the bottom of page 96 of their online catalog.

Grigg,

I think the part number is 3680991. The ones I received weren't in their original packages so the part number was from research.
In the Parts and Accessories Catalog, 30 March 1957 they are listed and illustrated on page 509, according to my old notes. In an older version of the book the page number was different.
My 1 Ton has dual rear wheels and if the OP has a single rear wheel truck, the studs will be different.

Thanks guys,
I ordered the bolts from LMC. I'll let you know if they work.
Chris

I ordered a set of the bolts from LMC and a set of bolts from Summit. Neither are an exact match. The ones from LMC have the same diameter and length knurl, but there is no smooth section between the knurl and the threads like the ones on my truck. The ones from Summit have the same diameter knurl, but the knurled section is not as long. I think that both bolts will work. I installe3d the LMC bolts and I'm back on the road. The lug nuts that I got from Napa are the same 1/2" thread and 13/16" wrench size, but they are thicker than the stock bolts, they also have a bevel on one side. They work, but I'd like to find some nuts that match the stock ones. I tried looking through a Dorman catalog at Napa, but did not find any. So, the search continues. I'm super happy to have the truck back on the road.
Thanks,
Chris

Lug nuts,
From my research they are originally 3/4" over flats and 1/2-20 thread. Common grade 8 nuts are the right shape/size.
I purchased two boxes of "armor coat" nuts from McMaster Carr, their part number 93827A249
http://www.mcmaster.com/#93827a249/=14geajr

Thanks!

The shop manual list the "wheel nut" torque specs, for 1/2-20 at about 75 ftlb
PICTURE Torque specs.

I found two part numbers from Dorman that were perfect replacements. If you are still looking let me know and I will pull out the part number.

That would be nice, thanks!
Please also explain if and how any machine work was done to fit the new studs.