Speedo gear question

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Sep 22, 2016 | 12:57 PM

Phil Fleming

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Cross-Country

Joined: Jun 2016

Posts: 67

Likes: 5

From: Mount Forest Ontario

Speedo gear question

I have a 79 F100, 300 I6, T18 4sp and 2.72 rearend (I believe). The tranny is not original the truck used to be a 3 sp. It currently has an 18 tooth yellow speedo gear on the cable but the speedometer is about 20km/h lower than actual speed. Can anybody tell me the correct gear for the speedo cable? Thanks

Sep 22, 2016 | 01:19 PM

Filthy Beast

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Joined: Mar 2011

Posts: 2,698

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From: Taxachusetts

You probably want the wine colored one - 16 tooth, driven gear. ID #37192A at Bronco Graveyard. $6 each, shipping is nuts!

Ford # CODZ-17271-A .....presupposing you have stock tires.

Sep 22, 2016 | 01:35 PM

NumberDummy

Ford Parts Specialist

Joined: Nov 2006

Posts: 88,826

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From: Simi Valley, CA

Quote:

Originally Posted by Filthy Beast

You probably want the wine colored one - 16 tooth, driven gear. ID #37192A at Bronco Graveyard. $6 each, shipping is nuts!

Ford # CODZ-17271-A .....presupposing you have stock tires.

This nylon DRIVEN speedo gear is available from Ford & auto parts stores.

MSRP: $5.24 / autonationfordwhitebearlake.com price: $3.45 / White Bear Lake located in MN