[Healeys] Overdrive question

[Laurie Wilford]

I put a 28% and a 3.54 diff in the BJ8. The overdrive sun and planet gears are the only difference and they are interchangeable in sets between the 22% and the 28%
The 22% overdrive has 24 teeth on the large planet, 15 teeth on the small planet, and 21 teeth on the sun gear
The 28% overdrive has 21 teeth on the large planet, 15 teeth on the small planet, and a 24 tooth sun gear.
Both use a 60 tooth annulus.

Laurie



Sent from Laurie Wilford


-------- Original message --------
From: Michael Salter <michaelsalter at gmail.com>
Date: 2019-07-14 12:17 PM (GMT-05:00)
To: healeys at autox.team.net
Subject: [Healeys] Overdrive question

I'm trying to put a 28% BN1 overdrive unit together from parts and am having difficulty with the gear tooth counts.
Anyone out there with one of these units in pieces who could help me out?

Thanks,

Michael S

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