Rear Differential - For GM 10 Bolt with 8-1/2" Ring Gear

1978-91 Chevy Blazer, Suburban
1978-91 GMC Jimmy, Suburban
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Kit components may vary from illustration depending on your truck's model.
How to choose the correct Ring & Pinion: Each ring and pinion gear set sold below is for replacement use only. Gear ratio changes are possible as long as the ratio selected is within the range of ratios available for the carrier. See chart below for carrier/case breaks by differential model.
10 Bolt
Series 2 = 2.56 - down (smaller numerically)
Series 3 = 2.73 - up (larger numerically)

AT = Automatic Transmission

Full Parts List
Part # Description Application Reqd Price Stock Status QTY.
1 34-2786
Finish:
Machined
Material:
Steel
Finish:
Machined
Material:
Steel
Axle Shaft-28 Spline 2 Wheel Drive 1/2 78-88 2 $79.95 In Stock
QTY Required
1 34-2787
Finish:
Machined
Material:
Steel
Finish:
Machined
Material:
Steel
Axle Shaft-28 Spline 4 Wheel Drive 1/2 78-88 2 $99.95 In Stock
QTY Required
1 34-2791
Finish:
Machined
Material:
Steel
Finish:
Machined
Material:
Steel
Axle Shaft-30 Spline 2 Wheel Drive 1/2 88-91 2 $99.95 In Stock
QTY Required
1 34-2792
Finish:
Machined
Material:
Steel
Finish:
Machined
Material:
Steel
Axle Shaft-30 Spline 4 Wheel Drive 1/2 88-91 2 $99.95 In Stock
QTY Required
2 30-1614
Lock Clip-Axle 1/2 78-91 2 Temporarily
Out Of Stock
No Backorders
3 34-0150
Seal 1/2 78-91 2 Temporarily
Out Of Stock
No Backorders
4 34-0520
Material:
Steel
Material:
Steel
Wheel Bearing 1/2 78-91 2 $10.95 In Stock
QTY Required
5 34-0452
Material:
Steel
Material:
Steel
Side Bearing 1/2 78-91 2 $19.95 In Stock
QTY Required
6 30-2921
Finish:
Plain
Material:
Steel
Finish:
Plain
Material:
Steel
Spacer 1/2 78-91 2 $7.95 In Stock
QTY Required
7 30-1980
Color:
Black
Material:
Magnet
Color:
Black
Material:
Magnet
Case Magnet 1/2 84-91 1 $11.95 In Stock
QTY Required
8 30-1969
Color:
Black
Finish:
Phosphate
Material:
Steel
Color:
Black
Finish:
Phosphate
Material:
Steel
Filler Plug 1/2 78-91 1 $4.50 In Stock
QTY Required
9 32-9219
Finish:
Zinc
Material:
Steel
Finish:
Zinc
Material:
Steel
Differential Cover 1/2 78-91 1 $19.95 In Stock
QTY Required
9 38-1815
Finish:
Chrome
Material:
Steel
Finish:
Chrome
Material:
Steel
Differential Cover-Chrome 1/2 78-91 1 $19.95 Backordered
QTY Required
10 30-4352
Cover Gasket 1/2 78-91 1 Temporarily
Out Of Stock
No Backorders
11 30-0260
Finish:
Zinc
Material:
Steel
Finish:
Zinc
Material:
Steel
Bolt 1/2 78-91 10 $0.25 In Stock
QTY Required
12 30-2543
Finish:
Chrome
Material:
Steel
Finish:
Chrome
Material:
Steel
Bolt Set-Cover-Chrome 1/2 78-91 1 $7.95 In Stock
QTY Required
13 34-0554
Material:
Steel
Material:
Steel
Differential Master Kit 1/2 78-91 1 $89.95 In Stock
QTY Required
14 34-0550
Material:
Steel
Material:
Steel
Differential Bearing Kit 1/2 78-91 1 $69.95 In Stock
QTY Required
15 34-5223
Differential Carrier "A"
  • "A" Fits models without positraction or limited slip differentials.
1/2 78-91 1 Temporarily
Out Of Stock
No Backorders
  • "A" Fits models without positraction or limited slip differentials.
16 30-0373
Color:
Black
Finish:
Phosphate
Material:
Steel
Color:
Black
Finish:
Phosphate
Material:
Steel
Ring Gear Bolt 1/2 78-91 12 $1.45 In Stock
QTY Required
17 32-9081
Finish:
Machined
Material:
Steel
Finish:
Machined
Material:
Steel
Internal Kit-28 Spline "A"
  • "A" Fits models without positraction or limited slip differentials.
1/2 78-88 1 $94.95 Backordered
QTY Required
  • "A" Fits models without positraction or limited slip differentials.
17 32-9082
Finish:
Machined
Material:
Steel
Finish:
Machined
Material:
Steel
Internal Kit-30 Spline "A"
  • "A" Fits models without positraction or limited slip differentials.
1/2 88-91 1 $109.95 In Stock
QTY Required
  • "A" Fits models without positraction or limited slip differentials.
18 34-5165
Finish:
Plain
Material:
Steel
Finish:
Plain
Material:
Steel
Washer-Pinion Shaft "A"
  • "A" Fits models without positraction or limited slip differentials.
1/2 78-91 2 $1.95 In Stock
QTY Required
  • "A" Fits models without positraction or limited slip differentials.
19 34-5175
Color:
Black
Finish:
Phosphate
Material:
Steel
Color:
Black
Finish:
Phosphate
Material:
Steel
Washer-Side Gear "A"
  • "A" Fits models without positraction or limited slip differentials.
1/2 78-91 2 $1.95 In Stock
QTY Required
  • "A" Fits models without positraction or limited slip differentials.
20 34-5160
Color:
Black
Finish:
Phosphate
Material:
Steel
Color:
Black
Finish:
Phosphate
Material:
Steel
Pinion Shaft Lock Screw 1/2 78-91 1 $2.95 In Stock
QTY Required
21 32-9028
Material:
Steel
Material:
Steel
Ring & Pinion 2.73 1/2 78-91 1 $184.95 In Stock
QTY Required
21 32-9029
Ring & Pinion 3.08 1/2 78-91 1 Temporarily
Out Of Stock
No Backorders
21 32-9030
Material:
Steel
Material:
Steel
Ring & Pinion 3.42 1/2 78-91 1 $179.95 In Stock
QTY Required
21 32-9031
Material:
Steel
Material:
Steel
Ring & Pinion 3.73 1/2 78-91 1 $189.95 In Stock
QTY Required
21 32-9032
Material:
Steel
Material:
Steel
Ring & Pinion 4.11 1/2 78-91 1 $179.95 In Stock
QTY Required
22 34-0484
Material:
Steel
Material:
Steel
Rear Pinion Bearing 1/2 78-91 1 $19.95 In Stock
QTY Required
23 30-2922
Color:
Black
Material:
Steel
Color:
Black
Material:
Steel
Spacer 1/2 78-91 1 $2.95 In Stock
QTY Required
24 34-0462
Material:
Steel
Material:
Steel
Front Pinion Bearing 1/2 78-91 1 $16.95 In Stock
QTY Required
25 34-0181
Material:
Steel/Rubber
Material:
Steel/Rubber
Pinion Bearing Oil Seal 1/2 78-91 1 $6.95 In Stock
QTY Required
26 32-8050
Material:
Steel
Material:
Steel
Yoke 1/2 78-81 1 $159.95 In Stock
QTY Required
26 32-8051
Material:
Steel
Material:
Steel
Yoke "B"
  • "B" Yoke has tapered ends.
1/2 82-87 1 $99.95 In Stock
QTY Required
  • "B" Yoke has tapered ends.
26 32-8051
Material:
Steel
Material:
Steel
Yoke Automatic Transmission 1/2 87-91 1 $99.95 In Stock
QTY Required
27 30-0605
Finish:
Plain
Material:
Steel
Finish:
Plain
Material:
Steel
Washer 1/2 78-91 1 $7.95 In Stock
QTY Required
28 30-0793
Color:
Black
Finish:
Phosphate
Material:
Steel
Color:
Black
Finish:
Phosphate
Material:
Steel
Nut 1/2 78-91 1 $2.95 In Stock
QTY Required
Close
Part # Description Application Reqd Price Stock Status QTY.

Vehicle Application

Includes Parts for the Following Models:

1978 Chevy Blazer 2WD 1979 Chevy Blazer 2WD 1980 Chevy Blazer 2WD 1981 Chevy Blazer 2WD 1982 Chevy Blazer 2WD 1978 Chevy Blazer 4WD 1979 Chevy Blazer 4WD 1980 Chevy Blazer 4WD 1981 Chevy Blazer 4WD 1982 Chevy Blazer 4WD 1983 Chevy Blazer 4WD 1984 Chevy Blazer 4WD 1985 Chevy Blazer 4WD 1986 Chevy Blazer 4WD 1987 Chevy Blazer 4WD 1988 Chevy Blazer 4WD 1989 Chevy Blazer 4WD 1990 Chevy Blazer 4WD 1991 Chevy Blazer 4WD 1978 Chevy Suburban 2WD 1979 Chevy Suburban 2WD 1980 Chevy Suburban 2WD 1981 Chevy Suburban 2WD 1982 Chevy Suburban 2WD 1983 Chevy Suburban 2WD 1984 Chevy Suburban 2WD 1985 Chevy Suburban 2WD 1986 Chevy Suburban 2WD 1987 Chevy Suburban 2WD 1988 Chevy Suburban 2WD 1989 Chevy Suburban 2WD 1990 Chevy Suburban 2WD 1991 Chevy Suburban 2WD 1978 Chevy Suburban 4WD 1979 Chevy Suburban 4WD 1980 Chevy Suburban 4WD 1981 Chevy Suburban 4WD 1982 Chevy Suburban 4WD 1983 Chevy Suburban 4WD 1984 Chevy Suburban 4WD 1985 Chevy Suburban 4WD 1986 Chevy Suburban 4WD 1987 Chevy Suburban 4WD 1988 Chevy Suburban 4WD 1989 Chevy Suburban 4WD 1990 Chevy Suburban 4WD 1991 Chevy Suburban 4WD 1978 GMC Jimmy 2WD 1979 GMC Jimmy 2WD 1980 GMC Jimmy 2WD 1981 GMC Jimmy 2WD 1982 GMC Jimmy 2WD 1978 GMC Jimmy 4WD 1979 GMC Jimmy 4WD 1980 GMC Jimmy 4WD 1981 GMC Jimmy 4WD 1982 GMC Jimmy 4WD 1983 GMC Jimmy 4WD 1984 GMC Jimmy 4WD 1985 GMC Jimmy 4WD 1986 GMC Jimmy 4WD 1987 GMC Jimmy 4WD 1988 GMC Jimmy 4WD 1989 GMC Jimmy 4WD 1990 GMC Jimmy 4WD 1991 GMC Jimmy 4WD 1978 GMC Suburban 2WD 1979 GMC Suburban 2WD 1980 GMC Suburban 2WD 1981 GMC Suburban 2WD 1982 GMC Suburban 2WD 1983 GMC Suburban 2WD 1984 GMC Suburban 2WD 1985 GMC Suburban 2WD 1986 GMC Suburban 2WD 1987 GMC Suburban 2WD 1988 GMC Suburban 2WD 1989 GMC Suburban 2WD 1990 GMC Suburban 2WD 1991 GMC Suburban 2WD 1978 GMC Suburban 4WD 1979 GMC Suburban 4WD 1980 GMC Suburban 4WD 1981 GMC Suburban 4WD 1982 GMC Suburban 4WD 1983 GMC Suburban 4WD 1984 GMC Suburban 4WD 1985 GMC Suburban 4WD 1986 GMC Suburban 4WD 1987 GMC Suburban 4WD 1988 GMC Suburban 4WD 1989 GMC Suburban 4WD 1990 GMC Suburban 4WD 1991 GMC Suburban 4WD

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