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**larry** · 12-23-2023, 08:18 AM

All mine are 3/8-24

**duffeycycles** · 12-23-2023, 09:22 AM

1937-1970 is 3/8-24..#700..
1971-86.. #707 1/2-13
Thanx Tom,I was wondering if Peak would work with the heat at the plug hole.

**T. Cotten** · 12-23-2023, 10:16 AM

Originally posted by duffeycycles View Post

1937-1970 is 3/8-24..#700..
1971-86.. #707 1/2-13
Thanx Tom,I was wondering if Peak would work with the heat at the plug hole.

PEEK does fine on OHV sparkplugs, Duffey!

On flattys, its marginal.

....Cotten

**pan620** · 12-24-2023, 08:27 AM

Originally posted by MMasa View Post

I have a couple of 4 speed cases with 1947, 48, and 49 date codes and all of the drain holes are 3/8-24????
Mark

I do to, but was waiting for the experts to chime in.

**macca** · 12-24-2023, 02:24 PM

over 400 hundred views on this & still nobody can identify my fender

**macca** · 12-24-2023, 02:25 PM

what is this off

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