Speedo / Tach / Gauges: speedo drive gears parts book chart for 62 GT Hawk

[Kenmike2]

Anyone have a parts book for the 62 GT Hawk? Need copy of the page that shows drive and driven (pinion) gears for the speedo drive.
Speedo reads about 20% fast with a 19 tooth pinion installed. At 55 MPH actual vehicle speed (have GPS to compare with) the speedo reads 65 mph.

Thanks to anyone who has this book and can scan a copy of that page for me.

Ken Michael

[bensherb]

65-15.4%=54.99,

19-15.4%=16.074,

A 16 should get you as close as it gets.

[dpson]

You can find the Studebaker parts manuals on Bob's Resource and Information site at this link, you'll need to scroll down the page to the "Manuals" section: http://www.studebaker-info.org/rjtec...2g.html#stuman

[SScopelli]

Here are the pages...






Notice the gear on the transmission output shaft varies (5, 7 or 8) depending on the rear ratio. Don't assume to just use a "19" without knowing the entire setup..

Here is my post on using a calculator to get the correct pinion. These charts assumed a certain tire size, gear on the transmission shaft, and the rear ratio.

I've updated my spread sheet once again.

My Google Drive link...

Click here ==>> https://drive.google.com/open?id=0B_...WZIUVdhODFsNUU

I have added a more detailed calculation for the speedometer pinion tooth calculation..

Previously I had fixed values of 10 and 11. Unfortunately Studebaker's use 7 or 8 spline speedometer gears on the tail shaft

Now you can enter your own values of the number of splines that are on your Speedo drive on the tail shaft..