[Healeys] BJ7 - CLOSE RATIO GEARBOX

[Alan Seigrist]

Scott -

I think you are confused.  As far as I am aware there are only two types of
new gear sets on the market, tulip ratio and sebring ratio, both are
straight cut gears.

If you can find a non overdrive side change box (standard) out of a BN4, if
I'm not mistaken this box had the most evenly spaced ratios of all the boxes
and the final ratio is similar to the OD boxes on the BJ7 so on the highway
it would work more or less the same.

You'd have to take the gear set out and then match it to the box you have, I
think they are interchangeable (but I could be wrong) others on the list
will know better than me on this one.  I think the ratios on the old non OD
BN4s is similar to the Sebring gear ratios.

That being said, it's a huge amount of effort for hardly any gain.  I like
driving the car just the way it is.

Alan

'52 A90
'53 BN1
'64 BJ8


On Sun, Sep 20, 2009 at 5:24 PM, Ingrid & Scott Graham
<isgraham at yahoo.com>wrote:

> My gearbox is nearing its next rebuild.  I am keen to move to closer ratio
> gearing - like most not thrilled with low 1st & big gap 2nd to 3rd.
>
> My mate has a box rebuilt with close ratio gears - but they are straight
> cut
> and make a helluva racket - very loud whine.
>
> But he tells me that there are now standard (not straight cut) closer ratio
> gears available.  Anyone on the list than can give me guidance on this?
>
> Thanks
>
> Scott Graham
> BJ7
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