GM 10 Bolt 8.5/8.6 Rear

GM 10 Bolt – 8.5/8.6 Rear Axle
      GPG Performance Parts

SPECIFICATIONS

Diff Cover: 10 bolt Ring Gear Dia.: 8.5" or 8.6" Pinion Dia.: 1.626" Pinion Splines: 30 spline

Case Change: 2.56–down & 2.73–up Years: 1972–2008 Notes:

ILL #

Part #

Base Description

Extended Description

MASTER KITS (with Shims & Ring Gear Bolts)

006

742G006

Master Differential Bearing Kit

1972–1999 Drum brakes

006

742G006A

Master Differential Bearing Kit

1999–2004 Disc brakes/2005–2008 Drum brakes

006

742G006B

Master Differential Bearing Kit

2009–up (casting # 8064)

KITS

004

742G004

Differential Bearing Kit

1972–1999 Drum brakes

004

742G004A

Differential Bearing Kit

1999–2004 Disc brakes/2005–2008 Drum brakes

004

742G004B

Differential Bearing Kit

2009–up (casting # 8064)

SEALS & SLEEVES

034

742G034

Crush Sleeve

1972–2008

070

742G070

Pinion Seal

1972–1998 Drum brakes

070

742G070A

Pinion Seal

1999–2004 Disc brakes/1999 Drum brakes/2005–2008 Drum brakes

074

742G074

Rear Axle Seal

1973–1987 Truck/1971–1995 G10/G20 van

074

742A074

Rear Axle Seal

1988–2008 Truck/1996–2005 van

074

721A074

Rear Axle Seal

1977–1996 Car (excluding wagon)

CLUTCH PACK

119

742G119A

Clutch Pack

Left side OEM

119

742G119

Clutch Pack

Right side OEM

BEARING, SHIMS & WASHERS

200

741A200

Carrier Shim Kit

1972–99 Drum brakes

200

742G200A

Carrier Shim Kit

1999–2004 Disc brakes/2005–2008 Drum brakes

202

742G202

Pinion Shim Kit

210

742G210

Differential Side Gear Washer (non-posi)

1972–1999 Drum brakes

210

742G210A

Differential Side Gear Washer (non-posi)

1999–2004 Disc brakes/2005–2008 Drum brakes

215

742A215

Pinion Yoke Washer

216

742G216

Pinion Gear Washer

250

742G250

Front Pinion Bearing Cone

251

742G251

Front Pinion Bearing Cup

255

742G255

Rear Pinion Bearing Cone

No shoulder

255

742G255A

Rear Pinion Bearing Cone

With shoulder 2002–2008

256

742G256

Rear Pinion Bearing Cup

270

741A270

Differential Side Bearing Cone

1972–1999 Drum brakes

270

722B270

Differential Side Bearing Cone

1999–2004 Disc brakes/2005–2008 Drum brakes

270

722A270

Differential Side Bearing Cone

Use on Eaton posi units only 1988–1999 Drum brakes

271

741A271

Differential Side Bearing Cup

1972–1999 Drum brakes

271

722B271

Differential Side Bearing Cup

1999–2004 Disc brakes/2005–2008 Drum brakes

271

722A271

Differential Side Bearing Cup

Use on Eaton posi units only 1988–1999 Drum brakes (O.D.2.89)

280

742G280

Rear Axle Bearing

1972–1987 Truck/1972–1995 Van

280

742G280A

Rear Axle Bearing

1988–2008 Truck/1996–2005 Van

281

741A280A

Rear Axle Bearing

1977–1996 Car (excluding wagon)

281

742G281

Rear Axle Bearing Repair Kit

1972–1987 Truck/1972–1995 Van

281

742G281A

Rear Axle Bearing Repair Kit

1988–2008 Truck/1996–2005 Van

GASKETS

303

742G303

Differential Cover Gasket

Front Differential

303

742G303A

Differential Cover Gasket

Rear Differential

GM 10 Bolt – 8.5/8.6 Rear Axle
     GPG Performance Parts

ILL #

Part #

Base Description

Extended Description

FLUIDS

465

M465D

Posi Additive

465

M465G

Gear Oil Supplement

HARD PARTS

484

742G484

Differential Cover Plug

673

742G673

Pinion Shaft

Non posi

673

742G673A

Pinion Shaft

OEM posi


690


742B690


Rear Axle Shaft

Appollo 1973–1975/Skylark 1975–1979/Seville 1976/Omega 1973– 1979/Nova 1970–1975/Phoenix 1977–1979/Ventura 1971–1977

690

742G690Z

Rear Axle Shaft

Cadillac 1989–1990 30 7/16" O.L.

690

742G690AA

Rear Axle Shaft

Cadillac Coupe Deville 1982–1983/Fleetwood 1988–1989 30 7/16"

690

742B690A

Rear Axle Shaft

Camaro/Firebird 1970–1981/Chevelle/El Camino 1968–1972 30 1/8"

690

741A690R

Rear Axle Shaft

Camaro/Firebird 1982–1987 w/Disc brakes

690

741A690S

Rear Axle Shaft

Camaro/Firebird 1982–1987 w/Drum brakes


690


742G690M


Rear Axle Shaft

Caprice & Caprice Classic 1988–1996/Buick Roadmaster 1991– 1996/Buick Electra Wagon 1989 31 1/2" O.L.

690

742G690L

Rear Axle Shaft

Caprice 1989–1990 30 1/2" O.L.

690

742G690S

Rear Axle Shaft

Caprice 1991–1996 (w/Drum brakes)

690

742G690T

Rear Axle Shaft

Caprice 1994–1996 (w/Disc brakes)

690

742G690U

Rear Axle Shaft

Caprice Police/Taxi 1995–1996 5 bolt Disc brakes 771mm long

690

742G690AB

Rear Axle Shaft

Chev full size Station Wagon 1991–1996 31" O.L.


690


742G690K


Rear Axle Shaft

Chevelle/El Camino/Century/Regal/Laguna/Malibu/Monte Carlo/ Cutlass/Vista Cruiser/Grand Prix/Lemans 1973–77/Estate Wagon/ Custom Cruiser 1977–1979/Lesabre/Impala/Delta 88 1977–1985/ Riviera/Grand Safari 1977–1978/Parisenne 1983–1986/Caprice 1977–1988/Sprint 1976–1977/Bonneville 1977–1981/Catalina 1977–1981/Grand Am 1973–1974/Grand Lemans 1976–1977

690

742G690V

Rear Axle Shaft

Envoy XL/Trailblazer EXT L. side 2002–up 31 3/4"

690

742G690W

Rear Axle Shaft

Envoy XL/Trailblazer EXT R. side 2002–up 33 1/4"

690

742G690P

Rear Axle Shaft

Express Van 1500/Savana Van 1500 1996–2002

690

742G690AD

Rear Axle Shaft

Express Van 1500/Savana Van 1500 2003–2007

690

742G690R

Rear Axle Shaft

Impala 1994–1996 (w/Disc brakes)

690

742G690H

Rear Axle Shaft

Truck 1979–1987 2WD 28 spline

690

742G690

Rear Axle Shaft

Truck 1981–1987 4WD 28 spline

690

742G690C

Rear Axle Shaft

Truck 1988 2WD/4WD 28 spline 33" O.L.

690

742G690J

Rear Axle Shaft

Truck 1988–1991 2WD 30 spline

690

742G690B

Rear Axle Shaft

Truck 1988–1991 4WD 30 spline

690

742G690G

Rear Axle Shaft

Truck 1988–1999 2WD 30 spline Drum brakes

690

742G690D

Rear Axle Shaft

Truck 1992–1999 4WD 30 spline Drum brakes


690


742G690A


Rear Axle Shaft

Truck 1999–2004 Disc brakes/2005–2008 Drum brakes 2WD & 4WD 39" O.L. 30 spline

690

742G690N

Rear Axle Shaft

S10/S15/Blazer 1997–2001 4WD non ZR2

690

742G690T

Rear Axle Shaft

S10/S15/Blazer 1998–2001 ZR package

690

742G690X

Rear Axle Shaft

Savanna/Rally Van 1500 2003–up


690


742G690AC


Rear Axle Shaft

Tahoe/Escalade/Yukon 2003–2007 w/VSES Stabiltrak system 33 9/16" O.L.

690

742G690F

Rear Axle Shaft

Van G10/G20 1975–1987 (28 spline)

690

742G690E

Rear Axle Shaft

Van G10/G20 1988–1995 (30 spline)

710

742G710

Differential Side Gear (Non-posi)

1972–1987

GM 10 Bolt – 8.5/8.6 Rear Axle
     GPG Performance Parts

ILL #

Part #

Base Description

Extended Description

HARD PARTS

710

742G710A

Differential Side Gear (Non-Posi)

1988–1999 Drum brakes

710

742G710B

Differential Side Gear (Non-Posi)

1999–2004 Disc brakes/2005–2008 Drum brakes

711

742G711

Pinion Gear

1972–Early 2000

711

742G711A

Pinion Gear

Early 2000–2008

714

742G714

Differential Case Empty (non-posi)

1972–1999 Drum brakes

714

742G714A

Differential Case Empty (non-posi)

1999–Early 2000 Disc brakes (casting # 0749)

714

742G714B

Differential Case Empty (non-posi)

Early 2000–2004 Disc brakes/2005–2008 Drum brakes (casting # 7875)

715

742G715

Differential Case Loaded(non-posi)

1972–1987 Drum brakes

715

742G715A

Differential Case Loaded(non-posi)

1999–Early 2000 Disc brakes (casting # 0749)

715

742G715B

Differential Case Loaded(non-posi)

early 2000–2004 Disc brakes/2005–2008 Drum brakes

715

742G715C

Differential Case Loaded(non-posi)

1988–1999 Drum brakes 30 spline

715

742G715D

Differential Case Loaded (posi)

Auburn High Performance 1972–1987 28 spline

715

G42G715E

Differential Case Loaded (posi)

Auburn High Performance1988–1999 Drum brakes 30 spline


715


G742G715F


Differential Case Loaded (posi)

Auburn High Performance1999–2004 Disc/2005–2008 Drum 30 spline

715

742G715G

Differential Case Loaded (posi)

Auburn Pro Series1972–1987 Drum brakes 28 spline


715


742G715H


Differential Case Loaded (posi)

Auburn Pro Series1988–1999 Drum brakes(w/diff bearings)

Auburn Pro Series 1999–2004 Disc brakes/2005–2008 Drum brakes

715

742G715J

Differential Case Loaded (posi)

Eaton posi 1972–1987 Drum brakes 28 spline


715


742G715K


Differential Case Loaded (posi)

Eaton posi 1999–2004 Disc brakes/2005–2008 Drum brakes 30 spline

715

742G715L

Differential Case Loaded (posi)

Detroit Truetrac posi 1972–1987 Drum brakes 28 spline


715


742G715M


Differential Case Loaded (posi)

Detroit Truetrac 1999–2004 Disc brakes/2005–2008 Drum brakes 30 spline

715

742G715N

Differential Case Loaded (posi)

Detroit Locker posi 1972–1987 Drum brakes 28 spline


715


742G715P


Differential Case Loaded (posi)

Detroit Locker 1999–2004 Disc brakes/2005–2008 Drum brakes 30 spline

716

742G716C

Electrically Controlled Traction

Auburn ECTED 1972–1987 28 spline

716

742G716D

Electrically Controlled Traction

Auburn ECTED1988–2008 30 spline

716

742G716E

Electromagnectic Locking Mech.

Eaton Elocker 1988–2008 30 spline

717

742G717

Internal Kit (non-posi)

1972–1987 28 spline

717

742G717A

Internal Kit (non-posi)

1988–1999 30 spline Drum brakes

717

742G717B

Internal Kit (non-posi)

1999–Early 2000 (casting # 0749)

717

742G717C

Internal Kit (non-posi)

Early–2000–2008 (casting # 7875)

717

742G717D

Internal Kit (non-posi)

2009–up (casting # 8064)

730

742G730A

Ring & Pinion

2.73 ratio

730

742G730B

Ring & Pinion

3.08 ratio

730

742G730J

Ring & Pinion

3.23 ratio

730

742G730C

Ring & Pinion

3.42 ratio

730

742G730K

Ring & Pinion

3.42 ratio Envoy/Trailblazer

730

742G730D

Ring & Pinion

3.73 ratio

730

742G730E

Ring & Pinion

4.10 ratio

730

742G730F

Ring & Pinion

4.56 ratio

730

742G730G

Ring & Pinion

4.88 ratio

730

742G730H

Ring & Pinion

5.13 ratio

730

742G730L

Ring & Pinion

5.38 ratio

730

742G730M

Ring & Pinion

5.57 ratio

732

742G732

Full Spools

1972–1987 28 spline

732

742G732A

Full Spools

1988–1999 30 spline

733

742G733

Mini Spools

GM 10 Bolt – 8.5/8.6 Rear Axle
     GPG Performance Parts

ILL #

Part #

Base Description

Extended Description

HARD PARTS

758

742G758

Differential Carrier Cover

1999–2004 Disc brakes/2005–2008 Drum brakes – fill plug in cover

758

742G758A

Differential Carrier Cover

1972–1999 Drum brakes – no fill plug in cover

920

742G920

Rear Axle C-Clip

930

742G930

Differential Case Lockscrew

935

742G935

Ring Gear Bolt

951

742G951

Rear Pinion Yoke

Truck only

951

742G951A

Rear Pinion Yoke

961

741A961

Pinion Nut

952

742G952

Speedi Sleeve

1980–1997 (1.932"–1.940")

* Chev Vans G10/G20 recommend OEM ring and pinions for noise reduction

* GM cars with ABS ring on pinion must use OEM ring and pinions

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