1929 Chevrolet International - 4 Door Sedan Project by BearsFan315

2 minute(s) of a 636 minute read

can someone validate the thread diameter and thread per inch for the 1929 hub cap and mating thread.

unfortunately my thread gauge will not FIT in the area to measure it. looks to be approx 2-3/8" diameter. my thread gauge is the L-type worked great till now and it is too big @!

gonna have to order another thread pitch gauge (smaller compact style)

any easy way to chase the threads inside the cap to clean them up any ??

5-13-2019

here are some pictures of the original caps I have as well the hub on the car they screw onto.

Wheel Hub OD

Wheel Hub TPI

Original Hub ID

Original Hub Face

a few of the Repro Hubs

Repro Hub ID

Close-Up of Threads