Terry
Original gear - C3OA-17271-A has 15 teeth and is marked 15R; it is no longer
available.
The 16 tooth gear that SS sells is a better match with today's tire sizes.
Different tooth gears from 16 to 21 are used to correct for tire size and
axle ratios.
The 17r gear should have worked OK but given a speedometer error depending
on your tire size and axle ratio.
These gears work with the stock parts; Ford 4 speed transmission with the
speedo cable going into the left side of the transmission.
Ron Fraser
-----Original Message-----
From: tigers-bounces@autox.team.net [mailto:tigers-bounces@autox.team.net]
On Behalf Of TERRY MORRIS
Sent: Wednesday, April 28, 2010 2:24 AM
To: tigers@autox.team.net
Subject: [Tigers] Trans gear for speedo
How many teeth should the speedo gear have for a Mk1a. The one I took out
had 17r stamped on it. The teeth were worn out. I replaced it with a new one
but it didn't last a block. I'm thinking it has always had the wrong tooth
count since I've owned it. In SS catalog it has a 16 listed but says it
should have a 15 but not available. Will the 16 work?
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