Re: Help. What size gear shift knob insert do I need?
Determine the thread of your later knob. The A thread is 5/16-24.
You might even get lucky and buy a standard thread insert that matches both, yours on the outside and 5/16-24 on the inside.
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Nathan - 1929 Closed Cab Pickup, 1929 Tudor, 1930 Coupe, 1941 Pickup - Vintage BMW Motorcycle Collector/Mechanic
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