Author Topic: Speedometer Gear  (Read 584 times)

upscope757

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Speedometer Gear
« on: August 30, 2013, 11:15:32 PM »
All,

I had received some info on this several months back but can't seem to locate it.

My car was a factory 12-bolt, 3:31 gears and I just pulled out the speedometer gear, red w/21 teeth, original Powerglide.

I found elsewhere that a 4:10 had 25 teeth.

I have changed out the gears to 3:73. Can I deduce then that the new speedometer gear would be 23 teeth?

Thanks,
Matt
Matt: 1967 RS/SS - L48/Powerglide - Sierra Fawn/Beige Vinyl Top, Charleston, SC

Ed_B

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Re: Speedometer Gear
« Reply #1 on: August 30, 2013, 11:30:34 PM »
Here's what the CHART shows in the P&A (scroll down to my reply number 4).

3.73 with F70-14 tires and Powerglide - 3860346 (Black, 23 teeth).

Ed

upscope757

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Re: Speedometer Gear
« Reply #2 on: August 30, 2013, 11:32:51 PM »
Thanks a million
Matt: 1967 RS/SS - L48/Powerglide - Sierra Fawn/Beige Vinyl Top, Charleston, SC