Product Summary

  • Change the gear ratio of your GM car with these 7.5" 10 bolt gear sets
  • These ring and pinion sets are manufactured to meet exact specifications to ensure a quality product every time
  • 3.23 and numerically higher ring & pinion ratios are designed for use with a "3 series" carrier
  • If you intend to install these ratios with a "2 series" carrier, you need to use ring gear spacer #910-48305
  • The 3.08 ratio ring and pinion set is for use with a "2 series" carrier
See more details

Key Specs

MFG. Part #
BrandSpeedway Motors
Ratio
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Details

IMPORTANT NOTE: 3.23 and numerically higher ring & pinion ratios are designed for use with a "3 series" carrier. If you intend to install these ratios with a "2 series" carrier, you need to use ring gear spacer #910-48305. 3.08 ratio ring and pinion sets fit a "2 series" carrier and do not use a ring gear spacer.

  • 7.50" diameter ring gear
  • 1.438" diameter pinion
  • 27 splines

Application

  • 1975-79 Omega
  • 1982-99 Camaro/Firebird
  • 1983-99 S-10/S-15/Astro Van
  • 1976-79 Skylark
  • 1977-90 Fullsize Olds/Buick/Pont
  • 1977-96 Fullsize Chevy
  • 1978-81 Century/Phoenix/Ventura
  • 1978-87 Cutlass/Grand Prix
  • 1978-87 Monte Carlo/Regal

Warranty Information

Click for details

Specifications

KEY SPECS
MFG. Part #
BrandSpeedway Motors
Ratio
GENERAL
Ring Tooth Count
Pinion Tooth Count
Shaft Diameter1.438"
Outside Diameter
Spline Count27
Material TypeSteel
Sold in QuantitySet

Ratings & Reviews

4.6

8 Reviews

Overall Assessment

Customers highly praise the product for its high quality, remarking on its excellent fit and easy assembly. Many were impressed by the robustness and durability, having used it repeatedly without any issues. The product's feature of easy installation was recurrently emphasized, suggesting simplicity of use. Positive remarks about the material quality and good packaging reinforce the perception of a top-notch, professional design. Compared to similar items from competitors, customers affirmed they would prefer this product again, appreciating its timely delivery and true-to-description qualities.

4.6

8 reviews

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Filter by Ratings

Yes

5.0

4 years ago

Walt

Walt Wabash ind

Verified

Works great

Would Recommend

Great parts and fit without any problems. Thanks

5.0

5 years ago

Kooldaddyo

Tooele Ut

Verified

Everything assembled with no problems. Thanks

Would Recommend

great transaction

5.0

10 years ago

Nate

wa

Verified

My first gm rear end set up and install not sure how quiet i got it cant here it over my bbc 427 lol

Would Recommend

I would buy this product again

5.0

10 years ago

Ben

Mooresville In

Verified

Had no problem with this gear

Would Recommend

GOOD PRODUCT

5.0

10 years ago

MIKEYDOG

LAWTON IA.

Verified

GOOD PRODUCT

Would Recommend

good deal

4.0

11 years ago

lewis

cortex colorado 81321

Verified

the gear set that was deliverd was exactly what I had ordered and got it in a great time frame. the gears looked great and were packaged securely. looks like quality material went into the product all the way around even in the packaging

Would Recommend

good gear easy to install

4.0

11 years ago

jason

oklahoma

Verified

easy to install

Would Recommend

ran ring and pinion before they held up

4.0

16 years ago

jeff

new york

Verified

good parts

Showing 8 of 8 reviews

Questions & Answers

18 Questions • 10 Answers

will the 456 gears fit in the stock carrier of a 1985 z28

by z28

• 8 years ago

1 answer

i have a 1986 s10 chassis and I also need a posi carrier can you recommend a carrier that speedway carries to go with this gear set?

by Jeremy ratrod

• 8 years ago

1 answer

Will this set work in my 95 Camaro 10 bolt

by Andrew

• 8 years ago

1 answer

Will the 4.56's work in a 7.5 10 bolt out of a 91 camaro? I have 3.73s right now but wanting more gear.

by Matthew

• 8 years ago

1 answer

will these work on a 80 caprice gm 10 bolt 7.5 currenty has 2.41 27 spline pinion and 26 spline axles

by thomas

• 9 years ago

1 answer

Will these gears work if I run a stock carrier in a gm 7.5 10 bolt in a 88 monty carlo ss and are these thick gears

by stinky pinky

• 9 years ago

1 answer

Is the 3.73 a thick or thin gear?

by Tyler

• 9 years ago

1 answer

Who is the manufacturer of these gear sets?

by Dave

• 9 years ago

1 answer

Will this gear work in my 1985 delta 88? I believe I have 2:73 gears right now. the differential is a GM 10 bolt and I BELIEVE a 7.5. I would like to put 4:10 or 3:90. thanks.

by kal

• 9 years ago

1 answer

Will this work on a 80 Chevy monza

by Jbell

• 10 years ago

1 answer

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