Gear knob/lever thread size?

Post by **mininut** » 29 Aug 2007, 16:51

Any one know the internal thread size of a standard gear knob or the external thread size on the top of the lever?
I'm wanting to make a stainless steel extension, seen 'em on ebay for £15

. Could make one for nowt if I knew the thread size

.
Looks like it could be M14 or 9/16" UNC, can anyone confirm this?

Post by **HarryMann** » 30 Aug 2007, 09:36

More likely to be M12 or M14 I'd have thought.
Just use your thread gauges or dies to check it's not Metric non-std (fine) or run a nut up and down it. Wheel nuts are M14?

Post by **shepster** » 30 Aug 2007, 10:16

It's definately METRIC, 12mm i would have thought 'cos it looks way smaller than a wheelnut!

Post by **toomanytoys** » 30 Aug 2007, 11:45

They can be 12 or 14.. not sure if std or fine thread..

Post by **mearnsy** » 30 Aug 2007, 12:01

I bought my 8ball gear knob off ebay with 12mm thread and it fits my 1981 just fine.

Post by **davros** » 30 Aug 2007, 20:20

i bought a pool ball 14 mm creg 1986 . fits fine

Post by **mininut** » 30 Aug 2007, 22:53

Thanks for the replies guys.
I can reveal, for future reference, that the thread size of a 1990 gear lever is................. M14 x 1.5, which I do believe is metric fine.