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Any help on 1928 chevy break drum rear wheel studs size and were to get them Rick

I’m not sure of the size but I needed 1 for my 28 and took it to a local parts store and they matched it with one they had in stock.

If you are talking about the external brake adjustment bolt with the sliding lock plate, I made my own when I worked on the brakes for my '27 one ton truck. Here is the post that I made at the time: https://vccachat.org/ubbthreads.php/topics/415525/re-brake-band-bending-technique.html#Post415525

Cheers, Dean

hello looking for bots that press in to the break drum and hold drum on and hub

According to my Master Parts Price List for all the four cylinder Chevys, if your wheel has wood spokes, the rear hub bolt is is a 3/8"-16 x 1 15/16" bolt (3/8 inch in diameter, 16 threads per inch (TPI) and 1 15/16 inches long). On my '28 AB Canopy Express (which is a 1/2 ton truck built on a car chassis), these bolts are carriage bolts. The hub has a square hole that the bolt head goes into. My truck has wooden spokes.

The book does not mention the strength (grade) of the bolt, but I would think that the stronger the better.

The book also does not mention the size of the bolt if you have disc wheels. It does mention, however, the size of the acorn nut that goes onto that bolt and the thread size for the nut is 7/16-20, so that is a clue.

New carriage bolts might have a different shape to the head than the old ones. But, I suspect that you can grind the new heads to match the old one's shape if you have an old one to guide you.

Hope this helps. Dean

Hello DEAN
I have disk wheels acorn head the knurl part of the bolt is 1/2" the rest of the bolt is 7/16' -20 and is 2 1/4 " long you need the knurl part as it line up the drum to the hub dy the way i used to live in san leandro off davis st Rick