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For Sale '54 and '55 Differentials


Airy Cat
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  • 3 weeks later...
1 hour ago, dustybonz said:

Hello I'm interested in your 54' special differential. I'm looking to change my gear ratio on my 1941 Buick special sedanette 40 series.

Do you know if that diff will work for that? 

It will work great 😊

Sort of bolt in, but you will probably have to use your old torque tube. Guess the length is different.  Can be hard to separate the drive shaft from the pinion shaft.

Lots of info in http://www.1937and1938buicks.com/The-Torque-Tube/The-Torque-Tube.htm

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1 hour ago, dustybonz said:

Tons of info on the link. I read in another site that I can just change the carrier? Is the easy bolt in way you're talking about. 

Yes, in a way, but read the tech articles.  Some people replace the complete diff, with brakes etc & use the original 1941 torque tube.

There are threads here on the forum about 1940's ratio changes

Typical threads

--> http://forums.aaca.org/topic/267259-buick-special-1948-rear-differential-ratio/

--> https://www.teambuick.com/forums/showthread.php?20920-rear-gear-swap

 

Not really applicable to 1940 & later, but interesting http://www.1937and1938buicks.com/Technical-Tips/Technical-Tips.htm

For 1939 and earlier machine work & more torque tube work is needed.

Edited by 1939_Buick (see edit history)
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3 hours ago, dustybonz said:

Do I just reply to this quote to show I'm interested in the part or is there a way to send a email? Sorry I'm new to this 

If you click on Airy Cats name you can send a message.  He lasted visited this site on 8 Dec.

As this---> https://forums.aaca.org/profile/80448-airy-cat/

Edited by 1939_Buick (see edit history)
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  • 3 weeks later...
  • 1 month later...
  • 1 month later...

Airy Cat last visited this site February 2, 2019, so it's been awhile. He may not read his PM's, he may not read emails, just not sure.  He is a BCA member.  I just called him and his phone rang and rang so perhaps it's still a land line.  PM me, and I will share that information OR if you are a BCA member, you can go to your Roster and he is on page 21.

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