Ruckstell 3:25 Ring Gear, Bill Everett

Post parts wanted or for sale here
User avatar

Topic author
Bill Everett
Posts: 296
Joined: Tue Jan 08, 2019 8:29 pm
First Name: Bill
Last Name: Everett
* REQUIRED* Type and Year of Model Ts owned: 1911 Touring, 1914 Touring, 1912 Roadster PickUp in process
Location: Collierville, TN
MTFCA Life Member: YES
Board Member Since: 2011

Ruckstell 3:25 Ring Gear, Bill Everett

Post by Bill Everett » Mon Mar 11, 2024 4:15 pm

I'd like to buy a new Ring Gear for the Ruckstell currently under construction.

Does anyone have a 3:25 they'd part with?

3:63 is too low, and 3:1 is too high.

If you have a 3:25 you'd let go, please send me a few pictures at bill.everett@epickett.com, and how much $$ you'd like for it.

Thank you.

Bill Everett

User avatar

BE_ZERO_BE
Posts: 628
Joined: Sun Jan 06, 2019 12:27 pm
First Name: BOB
Last Name: CASCISA
* REQUIRED* Type and Year of Model Ts owned: 1916 TOURING
Location: POULSBO, WA

Re: Ruckstell 3:25 Ring Gear, Bill Everett

Post by BE_ZERO_BE » Mon Mar 11, 2024 4:29 pm

 
For a 3.25 gear ratio, a 12 tooth pinion and 39 tooth ring gear are required.
 
Gear Ratios.JPG
Respectfully Submitted,
Be_Zero_Be

I drive a Model T ... Microseconds don't matter :D

For every Absolute Model T Fact there are at least three exceptions.


NoelChico
Posts: 266
Joined: Tue Jan 08, 2019 10:42 pm
First Name: Noel
Last Name: Chicoine
* REQUIRED* Type and Year of Model Ts owned: 1920 roadster, 1923 Touring, 1926 Coupe
Location: Pierre, South Dakota
Board Member Since: 2005

Re: Ruckstell 3:25 Ring Gear, Bill Everett

Post by NoelChico » Mon Mar 11, 2024 7:40 pm

I believe, as Bob said, you would need the 12 tooth pinion and a recessed ring gear made for the 3:1 high speed gears. Then you would need to add space under the ring gear to raise it to the proper clearance with the 12 tooth pinion. When I did it, I had to add a 1/16 inch, or .0625 shim. Stacking shims increases the chance of sheared ring gear bolts.


speedytinc
Posts: 4725
Joined: Fri Feb 12, 2021 12:24 pm
First Name: john
Last Name: karvaly
* REQUIRED* Type and Year of Model Ts owned: 14/15 wide track roadster. 23 touring, 27 roadster pickup, 20ish rajo touring
Location: orange, ca
Board Member Since: 2020

Re: Ruckstell 3:25 Ring Gear, Bill Everett

Post by speedytinc » Mon Mar 11, 2024 8:56 pm

noelchico wrote:
Mon Mar 11, 2024 7:40 pm
I believe, as Bob said, you would need the 12 tooth pinion and a recessed ring gear made for the 3:1 high speed gears. Then you would need to add space under the ring gear to raise it to the proper clearance with the 12 tooth pinion. When I did it, I had to add a 1/16 inch, or .0625 shim. Stacking shims increases the chance of sheared ring gear bolts.
I confirm all that.
I made my shim out of 6061-T6
A stack of steel shims is more likely to move & shear the bolts.

User avatar

Mark Gregush
Posts: 5370
Joined: Sat Jan 05, 2019 1:57 pm
First Name: Mark
Last Name: Gregush
* REQUIRED* Type and Year of Model Ts owned: 1925 cutdown PU, 1948 F2 Ford flat head 6 pickup 3 speed
Location: Portland Or
Board Member Since: 1999

Re: Ruckstell 3:25 Ring Gear, Bill Everett

Post by Mark Gregush » Mon Mar 11, 2024 10:30 pm

Bill you might use the pencil thing over to the right and add Wanted to the title and remove your name. :)
I know the voices aren't real but damn they have some good ideas! :shock:

1925 Cut down pickup
1948 Ford F2 pickup


Art M
Posts: 964
Joined: Wed Jun 19, 2019 12:57 pm
First Name: Art
Last Name: Mirtes
* REQUIRED* Type and Year of Model Ts owned: 1923 Touring
Location: Huron, Ohio
Board Member Since: 2016

Re: Ruckstell 3:25 Ring Gear, Bill Everett

Post by Art M » Tue Mar 12, 2024 10:00 am

If a 3.33 would satisfy your needs, a 12 - 40 should be doable.

Art Mirtes


speedytinc
Posts: 4725
Joined: Fri Feb 12, 2021 12:24 pm
First Name: john
Last Name: karvaly
* REQUIRED* Type and Year of Model Ts owned: 14/15 wide track roadster. 23 touring, 27 roadster pickup, 20ish rajo touring
Location: orange, ca
Board Member Since: 2020

Re: Ruckstell 3:25 Ring Gear, Bill Everett

Post by speedytinc » Tue Mar 12, 2024 2:07 pm

Art M wrote:
Tue Mar 12, 2024 10:00 am
If a 3.33 would satisfy your needs, a 12 - 40 should be doable.

Art Mirtes
A stock ring gear from an 11-40 set wont work with a 12T pinion.
A 12T pinion is a larger diameter than the 11 T, but smaller than a 13T.
This is the reason the ring gear(39 or 40 for a 3-1 set) needs some shimming.
I thought It would be possible To use the stock 40T gear with a 12T pinion in a Rux by machining that aprox. .062" off the carrier(bell) & shortening the ring gear bolts. This would eliminate the danger of a shim & bolts shearing.
This is my plan if I have a shearing failure in my T. So far, so good.

Post Reply Previous topicNext topic