Ring gear and pinion
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Topic author - Posts: 32
- Joined: Sun Jan 06, 2019 12:52 pm
- First Name: Harold
- Last Name: Chambers
- * REQUIRED* Type and Year of Model Ts owned: 1925 fordor. 1923 touring
- Location: Winfield tn.
- MTFCA Number: 50278
Ring gear and pinion
Hello everyone. Thanking about changing my pinion gear.I've got a 11tooth pinion and a 40 tooth ring gear can I use a 10 tooth pinion on the 40 tooth ring gear. Thanks in advance Harold
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- Posts: 663
- Joined: Fri Jan 04, 2019 11:15 am
- First Name: Tony
- Last Name: Bowker
- * REQUIRED* Type and Year of Model Ts owned: 1914 touring
- Location: La Mesa, CA
- MTFCA Number: 32
- MTFCA Life Member: YES
- Board Member Since: 2005
Re: Ring gear and pinion
Yes.
I did quite successfully on the Town Car. It required a little more effort than an 11 tooth pinion but just a few shims.
I did quite successfully on the Town Car. It required a little more effort than an 11 tooth pinion but just a few shims.
Tony Bowker
La Mesa, California
1914 Touring, 1915 Speedster, 1924 Coupe.
La Mesa, California
1914 Touring, 1915 Speedster, 1924 Coupe.
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- Posts: 67
- Joined: Sat Jan 12, 2019 10:30 pm
- First Name: Aaron
- Last Name: Griffey
- * REQUIRED* Type and Year of Model Ts owned: 1926 touring
- Location: Hayward, ca.
Re: Ring gear and pinion
I built a speedster with a Warford aluminum three speed and a 10 tooth pinion.
The 10 tooth was made to run against the stock ring gear.
The gout to one rear end gives you plenty of power in direct Warford or high Ruxtell.
But....if going up a slight upgrade if you run in high Ruckstell or direct Warford the motor is running very fast to tour with stock T’s.
If you run in overdrive Warford the engine will overheat from running too slow and lugging.
If you run in underdrive Warford or low Ruckstell everybody with the stock setup will overheat because their engines will be running too slow.
We found I just could not lead tours with that setup. The 3:63 overall gear ratio is by far the best in hilly country.
The 10 tooth was made to run against the stock ring gear.
The gout to one rear end gives you plenty of power in direct Warford or high Ruxtell.
But....if going up a slight upgrade if you run in high Ruckstell or direct Warford the motor is running very fast to tour with stock T’s.
If you run in overdrive Warford the engine will overheat from running too slow and lugging.
If you run in underdrive Warford or low Ruckstell everybody with the stock setup will overheat because their engines will be running too slow.
We found I just could not lead tours with that setup. The 3:63 overall gear ratio is by far the best in hilly country.
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- Posts: 3284
- Joined: Tue Jan 08, 2019 10:43 am
- First Name: Larry
- Last Name: Smith
- * REQUIRED* Type and Year of Model Ts owned: 13 Touring, 13 Roadster, 17 Coupelet, 25 Roadster P/U
- Location: Lomita, California
- MTFCA Number: 121
- MTFCA Life Member: YES
- MTFCI Number: 16310
Re: Ring gear and pinion
Unless you do a lot of driving on mountain roads, I would suggest sticking with the stock ratio.
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- Posts: 3907
- Joined: Sun Jan 06, 2019 8:00 pm
- First Name: John
- Last Name: Kuehn
- * REQUIRED* Type and Year of Model Ts owned: 19 Roadster, 21 Touring, 24 Coupe
- Location: Texas
- MTFCA Number: 28924
Re: Ring gear and pinion
Changing the differential gears from original has shown to be questionable after years of reading different outcomes on the forum. More than a few have noted that overall leaving the original gear ratio is the best way to go. Different opinions on this will always arise.
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- Posts: 1053
- Joined: Thu Feb 21, 2019 1:20 pm
- First Name: Joe
- Last Name: Bell
- * REQUIRED* Type and Year of Model Ts owned: 24 Fordor
- Location: Tiffin Ohio
- MTFCI Number: 24066
Re: Ring gear and pinion
If you are pulling hills all the time the ten tooth is great but if you are flat lands I would run the eleven tooth.