What Is My Rear????
Thread Starter
Burning Brakes
Joined: Oct 2010
Posts: 1,037
Likes: 28
From: Montclair New Jersey
What Is My Rear????
I bought an entire rear assembly from a swap meet. I sold all the other parts. This rear is free to me now. My plan is to have gears put into this rear without laying the car up. My question is that I want gears for this rear. I see "thick and thin" gears. What does that mean? I am 99% sure this rear is a dana 36 with 3:07's. Could someone tell me if this is a Dana 36 with 3:07's and what brand of gears would be right? I am thinking a 3:40's ratio. Also Thick or Thin?? The car is a 1986 for the street with the stock rear. I think 2:54. Not a track car.
I know why did I buy it if I wasn't sure. I knew if it wasn't right I couldn't loose. Money talks at swap meets.
Thanks for the help......
I know why did I buy it if I wasn't sure. I knew if it wasn't right I couldn't loose. Money talks at swap meets.
Thanks for the help......
Team Owner
Joined: Aug 2005
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From: Riverside County Southern California
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Thats a 3.07 (3.0714) Dana 36
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
You have a "3 series " carrier so you can install any ratio ;
3.07 - 3.73 using regular "thin " gears.
Aftermarket "thick " gears are used if installing 3.07+ gears on a "2 series"
carrier as in your old diff w/ 2.59's
I would give serious consideration to running the 3.07's as is to see what you think.
They are the recommended ratio for a stock TPI and give noticeable SOTP improvement over the 2.59's
http://forums.corvetteforum.com/1568185079-post21.html
3.07 - 3.73 using regular "thin " gears.
Aftermarket "thick " gears are used if installing 3.07+ gears on a "2 series"
carrier as in your old diff w/ 2.59's
I would give serious consideration to running the 3.07's as is to see what you think.
They are the recommended ratio for a stock TPI and give noticeable SOTP improvement over the 2.59's
http://forums.corvetteforum.com/1568185079-post21.html
Last edited by rodj; Sep 6, 2011 at 10:21 PM.
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Thread Starter
Burning Brakes
Joined: Oct 2010
Posts: 1,037
Likes: 28
From: Montclair New Jersey
OK...Thanks again............So if I use my stock differential I would need "thicker gears" but; if I use this differntial I can use "thinner gears"
I think I got it....
I think I got it....
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
Thin are stock factory style gear
When the factory changed ratios they changed the ring gear carrier to suit;
as noted the aftermarket " thick' gears allow you to do a gear change without the carrier swap.
Le Mans Master
Joined: Mar 2002
Posts: 5,889
Likes: 2
From: Castro Valley Calif.
St. Jude Donor '03 thru '26
I would give serious consideration to running the 3.07's as is to see what you think.
They are the recommended ratio for a stock TPI and give noticeable SOTP improvement over the 2.59's
http://forums.corvetteforum.com/1568185079-post21.html
They are the recommended ratio for a stock TPI and give noticeable SOTP improvement over the 2.59's
http://forums.corvetteforum.com/1568185079-post21.html
