Hi,
There are 7/16 inch studs available that have a knurl diameter of around
.520 inch. I think these will press in without reaming, but I don't know
for sure.
There are several manufacturers of 7/16 studs like Moroso, Mr. Gasket,
and ARP, the longer studs are around 2 5/8 inch up to around 3 inch.
If you go to 1/2 inch, you'll have to ream. The Moroso jobbies come in
two sizes, the smaller size is .615 knurl diameter.
Good luck, I had to take my hubs apart and open up the holes to
accomodate the larger knurl anyway, so I converted to 1/2 inch.
see ya,
rml
TR6's
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