wheel studs have a look

Put a wheel on other side that is original. Make sure length difference old vs new can be overcome with lugnuts.
Use spacers/ washers to pull stud in so you dont strip out knurled area when pulling them in.
Loctite on knurled section will help.
Also once installed you can tack weld the back to hold them.Had to do that with dads as a couple stripped out.

Why are you changing them?