Does this look like the proper gear selection?
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Joined: Feb 2002
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From: Avondale, AZ
Car: currently thirdgenless!!!
Does this look like the proper gear selection?
I am going to put in some 3.42's and ditch the 2.73's finally. Does this sound like what I need? It is from Sumitt Racing's web page.
Gear, Ring and Pinion, 3.42:1 Ratio, GM, 7 1/2 in./7 5/8 in, 10 Bolt, 2 Series, Set
Richmond Gear is the leading manufacturer of professional quality, high performance ring and pinion sets. The superior quality of these gear sets is the result of years of racing development, outstanding design, and state-of-the-art manufacturing methods. Richmond also offers these gear sets in a lightened version for the weight-conscious enthusiast. Their lightened ring and pinion sets feature an outstanding rotating weight loss of up to 6 lbs., ground pinion threads for trouble-free installation, and a special heat treatment for improved strength.
Vendor Richmond Gear
Product Line Richmond Gear Ring and Pinion Sets
Ring and Pinion Ratio 3.42:1
Cover Bolts 10
Ring Gear Bolts 10
Pinion Spline Count 27
Carrier Series 2
Ring Gear Rotation Standard
Ring Gear Teeth 41
Pinion Gear Teeth 12
Ring Gear Diameter (in) 7.50
Pinion Shaft Diameter (in) 1.438
Quantity Sold as a set.
Notes (Not Specified)
Gear, Ring and Pinion, 3.42:1 Ratio, GM, 7 1/2 in./7 5/8 in, 10 Bolt, 2 Series, Set
Richmond Gear is the leading manufacturer of professional quality, high performance ring and pinion sets. The superior quality of these gear sets is the result of years of racing development, outstanding design, and state-of-the-art manufacturing methods. Richmond also offers these gear sets in a lightened version for the weight-conscious enthusiast. Their lightened ring and pinion sets feature an outstanding rotating weight loss of up to 6 lbs., ground pinion threads for trouble-free installation, and a special heat treatment for improved strength.
Vendor Richmond Gear
Product Line Richmond Gear Ring and Pinion Sets
Ring and Pinion Ratio 3.42:1
Cover Bolts 10
Ring Gear Bolts 10
Pinion Spline Count 27
Carrier Series 2
Ring Gear Rotation Standard
Ring Gear Teeth 41
Pinion Gear Teeth 12
Ring Gear Diameter (in) 7.50
Pinion Shaft Diameter (in) 1.438
Quantity Sold as a set.
Notes (Not Specified)
Joined: Feb 2001
Posts: 13,757
Likes: 560
From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
I would wait and get a posi before you get a 2 series gear. You should be able to snag a 4th gen posi for next to nothing and then go with a 3 series gear. I am not aware of any 2 series posi's for the 10 bolt other than the super rare ones found in some 3.08 T5 cars. I could be wrong on that though. Although I have never owned a set of richmonds, I hear they whine. For that reason I went with GM gears.
Joined: Feb 2001
Posts: 13,757
Likes: 560
From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by azvolfan
What about Strange gears. They make some 3.42's that should fit my car. Anybody heard of them?
What about Strange gears. They make some 3.42's that should fit my car. Anybody heard of them?
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Joined: Feb 2002
Posts: 1,141
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From: Nashville TN
Car: 1989 Trans Am
Engine: 355 HSR
Transmission: Pro-Built 700r4 w/ 3400 converter
Axle/Gears: 10 bolt w/ 3.42 gears
I had a posi in my 89 305 2.73 car.
I got used GM gears, and they still whine a little. I have setup several different sets for people and by far the quietest is the Motive IMO.
I got used GM gears, and they still whine a little. I have setup several different sets for people and by far the quietest is the Motive IMO.
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