Subject: [TR] Overdrive and Sppedometer

From: Jeff Scarbrough <[email-masked]>
Date: Mon, 24 Aug 2020 09:13:53 -0400

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I have a 1975 TR6.   With the original gearbox, the speedometer was
correct.  I took it out to add overdrive and put in a gearbox from a 1974
while I worked on it.  That gearbox made the speedo read about 12% higher.

Got the overdrive on the box and in the car.  My speedo still reads high.
I'd like to find a simple solution...

Do I try to find the right drive gear for the gearbox output, or do I get a
different speedometer?

Jeff Scarbrough
Corrosion Acres, Ga.

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<div dir=3D"ltr">I have a 1975 TR6.=C2=A0 =C2=A0With the original gearbox, =
the speedometer was correct.=C2=A0 I took it out to add overdrive and put i=
n a gearbox from a 1974 while I worked on it.=C2=A0 That gearbox made the s=
peedo read about 12% higher.<div><br></div><div>Got the overdrive on the bo=
x and in the car.=C2=A0 My speedo still reads high.=C2=A0 I&#39;d like to f=
ind a simple solution...</div><div><br></div><div>Do I try to find the righ=
t drive gear for the gearbox output, or do I get a different speedometer?</=
div><div><br></div><div><br>Jeff Scarbrough</div><div>Corrosion Acres, Ga.<=
/div></div>

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