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First Generation Camaro dedicated Site. Information, Photo Gallery, Tips, Facts, and everything you need to know about these musclecar legends. If you love First Gen Camaros, this is the place to be. Welcome to FIRSTGENCAMARO.COM

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Griffin Aftermarket Aluminum Radiator

Griffin Aluminum Radiator

A pic of a Griffin Aluminum Radiator.


Afco Aftermarket Aluminum Radiator

Go to the Afco Racing Products Home Page

Afco Racing Radiator

Here we see a pic of an Afco Racing Aluminum Radiator.



10 Bolt Vs. 12 Bolt

12 Bolt Chevy Differential

10 Bolt Chevy Differential

 

Which one is better? Great question. And the answer is: it depends. The 10 bolt is lighter and needs more power to turn. The 12 bolt is a heavy duty unit, much stronger, but is HP hungry and will suck your car more horses. Take a look at your aplication, and then decide wich one is for you. Usually, behind a Big Block Chevy, you´ll want to use the 12 bolt axle.

The Chevrolet Camaro Differentials.



Camaro 1967-1969
10-bolt 12-bolt
Casting Number 3894859NF 3894860NF
Bolt Diameter 3/8 3/8
Ring Gear Diameter 8.20 8.875
Pinion Diameter 1.438 1.625
Axle Splines 28 30
Overall Dimensions:    
Axle tube flange to axle tube flange 54 1/4 54 1/4
Between centerlines of spring seats 42 7/16 42 7/16
Shaft Length 29 33/64 29 9/16

Below is a list of positraction casting numbers. Gearing "up" indicates that the Posi Traction Unit is applicable to gearing Numerically Higher. Gearing "down" indicates that the Posi Traction Unit is applicable to gearing Numerically Lower.

Axle
Casting Number
Series
Gearing
12-bolt passenger ED 32088
2
 2.73:1 and down
30140PM1
3
 3.08 to 3.73:1
EDB 30174
4
 3.90:1 and up
Corvette ED 32297 PW 3
3
 2.73 to 3.70:1
EDB 32298
4
 3.90:1 and up
8.5 Corporate 410408N
3
 2.73:1 and up
410409N
2
 2.56:1 and down
8.2 10-bolt ED 32118
2
 2.73:1 and down
ED 30116
3
 3.08:1 and up


Here we show you a picture with the location of the Casting numbers for both 10 and 12 bolt differentials and the location for the Axle Stamp. The graphic is a Courtesy of Steve Brown.

Chevy Rear Axle Sketch


Here we see a picture of a 10 Bolt Chevy Ring and Pinion Set by Richmond.
3,90 Ring and Pinion Set from Richmond (Aftermarket)



Chevrolet Camaro Differentials and Rear Axle



Any questions about Camaro Driveline and Transmissions?:

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Source: Camaro Research Group - camaros.org

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