The Ford Barn

katy · 07-15-2021, 10:35 AM

Ouch

rotorwrench · 07-15-2021, 10:40 AM

This link is a Ruckstell Dual High transmission.
http://www.fordgarage.com/pages/ruckstelldualhigh.htm

The photo in the previous post 19 looks like an AA truck under/over unit. These are not overdrives but low to high splitter auxiliary units. It has an underdrive and a 1:1 ratio.
https://www.fordbarn.com/forum/showthread.php?t=244077

There are likely other units that give under/over auxiliary action for model As but most are for trucks or model Ts.
This is why I asked.

If it has a planetary gear set then there could be a problem there too. Not enough information can make for a lot of guess work.

There is not much to a rear axle but here is a good link to the Santa Anita As.
http://www.santaanitaas.org/wp-conte...vised-2014.pdf

07-15-2021, 10:35 AM	#21
katy Senior Member Join Date: Jun 2015 Location: Red Deer, Alberta Posts: 5,043	Re: Teach me about differentials. Ouch __________________ If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn!

07-15-2021, 10:40 AM	#22
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,426	Re: Teach me about differentials. This link is a Ruckstell Dual High transmission. http://www.fordgarage.com/pages/ruckstelldualhigh.htm The photo in the previous post 19 looks like an AA truck under/over unit. These are not overdrives but low to high splitter auxiliary units. It has an underdrive and a 1:1 ratio. https://www.fordbarn.com/forum/showthread.php?t=244077 There are likely other units that give under/over auxiliary action for model As but most are for trucks or model Ts. This is why I asked. If it has a planetary gear set then there could be a problem there too. Not enough information can make for a lot of guess work. There is not much to a rear axle but here is a good link to the Santa Anita As. http://www.santaanitaas.org/wp-conte...vised-2014.pdf Last edited by rotorwrench; 07-15-2021 at 11:22 AM.