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DIFFERENTIAL COMPONENT PARTS

We offer a complete line of rear end parts for the GM 7.5 & 7.625 inch differential, this differential was utalized by GM in it very popular passanger Car starting in 1977. 1982 GM starting installiation in the Camero and Z28 series vehicles, Pontiac Firebirds and Trans AM began using it in 1982. This differential also is utalized in the S-10 series Blazers and Jimmy. Our inventory includes ring gear and pinion sets, including aftermarket and OE gear sets. We are able to supply axles, bearing overhaul kits, carriers, cases, spider and side gears. Positraction units we offer include Lockrights by Powertrax, Auburn, Detroit Lockers, Trac Loc and ARB air lockers. We are a Dana Spice volume distributor and offer a complete line or ring gear and pinions to the large Dana 80 differential.

Specifications are provided below to assist you in the identification and setup as well as torque spec's for your Chevrolet/General Motors 7.5" and 7.625" differentials.

Applications

Model

Year

GM Passanger Car (Except H body Monza, Vega, Starfaire)

77-93

Camero, Z28

82-97

Chevrolet S-10 & S-15

77-97

Pontiac Firebird & Trans Am

82-97

What differential ratio do you have?

Need information on how to setup ring and pinion backlash

Purchase your parts @ drivetrain.com and receive telephone access to experienced differential technician to assist you with installation, we help you solve the problem.

8-5/16" X 10-9/16"
10 HOLES
OVAL Gasket Pattern

SPECIFICATIONS

  • RG Diameter 7.50"
  • 10 3/8" X 18 RH Threaded Bolts
  • PINION Diameter 1.438", 27 Spline

    CASE: 3.08 & Down, 3.23 Numerically Higher

    8620 Material Heat-Treated

    Assembly Specifications:

  • Cover Bolt Ft. Lbs. 20
  • Pinion Brg. Preload In. Lbs 24-32
  • Pinion Brg. Preload In. Lbs 8-12 Used
  • Ring Gear Backlash .005-.009
  • Ring Gear Bolt to case Ft. Lbs. 90
  • Side Brg. Caps Ft. Lbs. 60

GM 7.5" 7.625" Differential Ring and Pinion Sets

 
Part Number OE Number

Ratio

Teeth

Price

 
GM7.5-273 OEM

2.73

 

$296.00

 
GM7.5-308 14048380

3.08

40-13

$208.33

Quality Guarnateed Performance
GM7.5-323 14085348

3.23

42-13

$208.33

GM7.5-342 14048378

3.42

41-12

$208.33

GM7.5-373 14048379

3.73

3.73

$208.33

GM7.5-373OE  

3.73

3.73

$260.30

GM7.5-410 14059087

4.10

41-10

$208.33

 
GM7.5-456  

4.56

 

$287.50

 



GM 7.5" 7.625" Differential Parts

Description

Part Number

Price

 
Case, Empty 7.5" 3.23 - 4.56

SA65-2015

$122.82

 
Case, Empty 7 5/8" 2.73 - 3.08

SA65-2015A

$122.82

 
Case, Empty 7 5/8" 3.23 - 4.56

SA65-2015B

$131.03

 
Bearing/Overhaul Kit 7.5/7 5/8"

DTSR7.5GRMK

$93.83

 
Bearing/Overhaul Kit GM 7.5 82 Newer

DTSR7.5GRMK

$93.83

 
Installation Kit (no bearings)

MWGM7.5IK

$50.00

See the kit.

Internal Kit 7.5" 26 spline (spider/side gears, cross shaft thrust washer)

MWGM7.5BI

$135.33

 
Internal Kit 7 5/8" 28 spline (spider/side gears, cross shaft thrust washer)

MWGM7.6BI

$135.33

 
Axle 7.5" 26 Spline, 5 holes, 29" length, R&L 4WD 83-89 S Series Blazer, 83-89 S Series Jimmy, 83-89 GMC S15, 83-89 Sonoma

PA5567

$120.32

Your Cost $48.98 + S&H.

Axle 7.5" 28 Spline 5 holes, 29" length, R&L, 4WD 88-98 Series Blazer, 88098 S Series Jimmy, 94-96 Olds Bravado, 88-98 Chevy S10, 88-98 GMC S15, 88-98 Sonoma

PA5566

$120.32

Axle 85-89 Astro Van 26 Spline Left Side

PA5737

$146.67

Axle 85-89 Astro Van 26 Spline Right Side

PA5738

$146.67

Axle 90-98 Astro Van 26 Spline Left Side

PA5739

$146.67

Axle 90-98 Astro Van 26 Spline Right Side

PA5740

$146.67

Bearing, Axle 2.25 Outside Diameter

TIM5707

$12.86

 
Seal, Axle

TM86605

$2.08

 

GM 7.5" 7.625" Positraction Differential Assembly Options

Description

Part Number

Price





Whats the difference in Positractions?

Check out Differentials whats the Difference
Auburn Limited Slip Positraction 2.73 -3.08 26 spline 1979 newer

542058

$435.50

Auburn Limited Slip Positraction 3.23 -4.56 26 spline 1979 newer

542057

$435.50

Auburn Limited Slip Positraction 2.73 -3.08 28 spline 1988 newer

542041

$435.50

Auburn Limited Slip Positraction 3.23 up 28 spline 1988 newer

542040

$435.50

LockRight 7.5" 26 spline

1930

$352.02

LockRight 7 5/8" 28 spline

1931

$350.31

LockRight 7 5/8" 26 spline

1932

$350.31

 
no-slip Powertrax Positraction 26 Spline

92-0775-2605

$425.25

New Item

Detroit Locker 26 spline 3.23 and up

DET162-58A

$559.97

 

In addition to the Chevrolet General Motors 7.5" and 7.625" inch differential parts and accessories listed here, we also provide an impressive list of automotive after market products for car, pickup truck, SUV and 4wd repair parts and accessories that includes rear end covers, ring and pinion gears, OE clutches and heavy duty performance clutches, diesel gauge kits, exhaust brakes, re manufactured manual transmissions and both manual and automatic overhaul kits. Other products we offer for the RV recreational vehicle market include REMCO drivelinedisconnects, tow bar and baseplates and auxiliary overdrive units to improve vehicle performance and save fuel. We have a complete 4 wheeling drivetrain product line including complete differential assemblies, limited slip and other solid locking positractions. We offer transmission conversion kits including the NV4500 and NV5600 as well as replacement kits for light duty GM and Jeep transmissions. You may be interested in visiting our Ford and Powerstroke Diesel page, Dodge Ram and other Jeep pages for detailed information.

Watch for future additions of new products to be added to our on-line catalog including advanced wheels, tires, engine tune-up kits and other accessories.

Our large
question and answer data base it's provided for you it provides additional information that may be of interest to you. Our easy to use vehicle information data base is cataloged by vehicle manufacture, part or component, to review just select Q&A data.

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If it's a part and or a components under your vehicle we can supply it!
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Considering purchasing parts from drivetrain.com and have questions contact Tech line at 1-702-876-3100 or send e-mail.
Drivetrain Specialists of Las Vegas - Las Vegas NV, 89102


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Las Vegas Nevada, 89102
(702) 876-3100