48 Spoke wheels were used until the middle of the BJ7 production run when 60
spokers were introduced. I suspect this was because it was found that the 48
spoke wheels were inadequate for the side forces that were generated by the
newly available radial tires. Coarse thread knock off nuts and thicker
section splined hubs were introduced with the BJ8 Phase 2 probably also in
response to the improved tires available.
60 spoke wheels will contact the front brake drums on 100 and 100/6 cars but
72 spoke wheels will clear the drums as I recall.
The stub axle and king pin assembly for the 100/6 (and BN2) is the same as
that used until the beginning of the use of the coarse thread splined hubs
so you can easily install discs with Girling 14 calipers on a 100/6 although
some of the parts are getting difficult to find.
I think I have a couple of sets if anyone is contemplating this conversion.
Michael Salter
http://www.netbug.net/blogmichael/?p=445
-----Original Message-----
From: healeys-bounces@autox.team.net [mailto:healeys-bounces@autox.team.net]
On Behalf Of Mark LaPierre
Sent: Saturday, September 19, 2009 8:38 PM
To: Ed Woods; healeys@autox.team.net
Subject: Re: [Healeys] The mystery of the 100-6 Wheels
My car is # 6744 and it is a 1960 BT7. It has always had disc brakes in the
front. Not sure
how the spindle set up changes. Most of the early wire wheel cars had fine
thread knock offs.
Make sure you get the hubs that match your knock offs.
Mark
----- Original Message -----
From: "Ed Woods" <fogbro1@comcast.net>
To: "Mark LaPierre" <lapierrem@sbcglobal.net>; <healeys@autox.team.net>
Sent: Saturday, September 19, 2009 8:39 AM
Subject: Re: [Healeys] The mystery of the 100-6 Wheels
> List,
>
> I just happen to have a set of four almost new Dayton 60 spoke wires with
> tires mounted and balanced and and set of four coarse thread eared
> knockoffs. Of course these won't fit the front of a drum braked car. So my
> next question is: At what point in the front suspension are the BN6 and
> later disk braked cars identical? At the vertical link and spindle so that
> all I need, other than the brake parts, is the correct hub? Or would
> changes go deeper than that?
>
> Ed Woods
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