Rear Differential - 12 Bolt with 8-7/8" Ring Gear and 30 Spline Pinion

1967-72 Chevy Truck, Blazer, Suburban
1967-72 GMC Truck, Jimmy, Suburban
Drag illustration to view more parts
Axle Shaft Specifications
34-2780 Rear Axle Shaft 30 Spline x 30-3/4" OL 6 Lug 12 Bolt x 8-7/8" Ring Gear 2/4WD
34-2782 Rear Axle Shaft 30 Spline x 31-9/32" OL 6 Lug 12 Bolt x 8-7/8" Ring Gear 2/4WD
34-2784 Rear Axle Shaft 30 Spline x 31-5/16" OL 5 Lug 12 Bolt x 8-7/8" Ring Gear 2WD
Professional Installation Recommended
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.
Truck 12 Bolt
Series 2 = 2.73 - down (smaller numerically)
Series 3 = 2.76 - 3.42
Series 4 = 3.73 - up (larger numerically)
Full Parts List
Part # Description Application Reqd Price Stock Status QTY.
1 32-9020
Material:
Steel
Material:
Steel
Ring & Pinion Assembly-3.08 Series 3 1 $179.95 Backordered
QTY Required
1 32-9022
Material:
Steel
Material:
Steel
Ring & Pinion Assembly-3.42 Series 3 1 $174.95 In Stock
QTY Required
1 32-9021
Material:
Steel
Material:
Steel
Ring & Pinion Assembly-3.73 Series 4 1 $199.95 In Stock
QTY Required
1 32-9023
Material:
Steel
Material:
Steel
Ring & Pinion Assembly-4.11 Series 4 1 $174.95 In Stock
QTY Required
2 34-0555
Material:
Steel
Material:
Steel
Master Kit 1/2 Ton 67-72 1 $84.95 In Stock
QTY Required
3 34-0551
Material:
Steel
Material:
Steel
Bearing Kit 1/2 Ton 67-72 1 $72.95 In Stock
QTY Required
4 32-9080
Material:
Steel
Material:
Steel
Internal Kit-30 Spline 1/2 Ton 67-72 1 $106.95 In Stock
QTY Required
5 34-2780
Finish:
Machined
Material:
Steel
Finish:
Machined
Material:
Steel
Rear Axle Shaft-30 Spline 1/2 Ton 67-69 2 $159.95 In Stock
QTY Required
5 34-2782
Finish:
Machined
Material:
Steel
Finish:
Machined
Material:
Steel
Rear Axle Shaft-30 Spline 2 Wheel Drive 1/2 Ton 70 2 $109.95 Backordered
QTY Required
5 34-2784
Finish:
Machined
Material:
Steel
Finish:
Machined
Material:
Steel
Rear Axle Shaft-30 Spline 2 Wheel Drive 1/2 Ton 71-72 2 $99.95 In Stock
QTY Required
5 34-2782
Finish:
Machined
Material:
Steel
Finish:
Machined
Material:
Steel
Rear Axle Shaft-30 Spline 4 Wheel Drive 1/2 Ton 70-72 2 $109.95 Backordered
QTY Required
6 30-1614
Lock Clip-Axle 1/2 Ton 67-72 2 Temporarily
Out Of Stock
No Backorders
7 34-0520
Material:
Steel
Material:
Steel
Rear Wheel Bearing 1/2 Ton 67-72 2 $10.95 In Stock
QTY Required
8 34-0150
Rear Wheel Oil Seal 1/2 Ton 67-72 2 Temporarily
Out Of Stock
No Backorders
9 30-0890
Color:
Black
Finish:
Phosphate
Material:
Steel
Color:
Black
Finish:
Phosphate
Material:
Steel
Nut-Pinion 1/2 Ton 67-72 1 $5.95 Backordered
QTY Required
10 30-0687
Finish:
Zinc
Material:
Steel
Finish:
Zinc
Material:
Steel
Washer 1/2 Ton 67-72 1 $4.95 In Stock
QTY Required
11 34-5122
Material:
Die Cast
Material:
Die Cast
Pinion Yoke 1/2 Ton 71-72 1 $104.95 Backordered
QTY Required
12 34-0154
Material:
Steel/Rubber
Material:
Steel/Rubber
Pinion Oil Seal 1/2 Ton 67-72 1 $5.95 In Stock
QTY Required
13 34-0462
Material:
Steel
Material:
Steel
Pinion Bearing-Front 1/2 Ton 67-72 1 $16.95 In Stock
QTY Required
14 30-2916
Color:
Black
Finish:
Phosphate
Material:
Steel
Color:
Black
Finish:
Phosphate
Material:
Steel
Spacer-Bearing 1/2 Ton 67-72 1 $6.95 In Stock
QTY Required
15 34-0466
Material:
Steel
Material:
Steel
Pinion Bearing-Rear 1/2 Ton 67-72 1 $22.95 In Stock
QTY Required
16 30-4354
Material:
Paper
Material:
Paper
Gasket-Cover 1/2 Ton 67-72 1 $5.95 In Stock
QTY Required
17 38-1806
Finish:
Chrome
Material:
Steel
Finish:
Chrome
Material:
Steel
Rear Cover-Chrome-12 Bolt 1/2 Ton 67-72 1 $19.95 In Stock
QTY Required
18 30-2543
Finish:
Chrome
Material:
Steel
Finish:
Chrome
Material:
Steel
Bolt Set-Cover-Chrome 1/2 Ton 67-72 1 $7.95 In Stock
QTY Required
Close
Part # Description Application Reqd Price Stock Status QTY.

Vehicle Application

Includes Parts for the Following Models:

1967 Chevy C10 Pickup 1968 Chevy C10 Pickup 1969 Chevy C10 Pickup 1970 Chevy C10 Pickup 1971 Chevy C10 Pickup 1972 Chevy C10 Pickup 1967 Chevy K10 Pickup 1968 Chevy K10 Pickup 1969 Chevy K10 Pickup 1970 Chevy K10 Pickup 1971 Chevy K10 Pickup 1972 Chevy K10 Pickup 1967 Chevy C20 Pickup 1968 Chevy C20 Pickup 1969 Chevy C20 Pickup 1970 Chevy C20 Pickup 1971 Chevy C20 Pickup 1972 Chevy C20 Pickup 1967 Chevy K20 Pickup 1968 Chevy K20 Pickup 1969 Chevy K20 Pickup 1970 Chevy K20 Pickup 1971 Chevy K20 Pickup 1972 Chevy K20 Pickup 1970 Chevy Blazer 2WD 1971 Chevy Blazer 2WD 1972 Chevy Blazer 2WD 1969 Chevy Blazer 4WD 1970 Chevy Blazer 4WD 1971 Chevy Blazer 4WD 1972 Chevy Blazer 4WD 1967 Chevy Suburban 2WD 1968 Chevy Suburban 2WD 1969 Chevy Suburban 2WD 1970 Chevy Suburban 2WD 1971 Chevy Suburban 2WD 1972 Chevy Suburban 2WD 1967 Chevy Suburban 4WD 1968 Chevy Suburban 4WD 1969 Chevy Suburban 4WD 1970 Chevy Suburban 4WD 1971 Chevy Suburban 4WD 1972 Chevy Suburban 4WD 1967 GMC C15 Pickup 1968 GMC C15 Pickup 1969 GMC C15 Pickup 1970 GMC C15 Pickup 1971 GMC C15 Pickup 1972 GMC C15 Pickup 1967 GMC K15 Pickup 1968 GMC K15 Pickup 1969 GMC K15 Pickup 1970 GMC K15 Pickup 1971 GMC K15 Pickup 1972 GMC K15 Pickup 1967 GMC C25 Pickup 1968 GMC C25 Pickup 1969 GMC C25 Pickup 1970 GMC C25 Pickup 1971 GMC C25 Pickup 1972 GMC C25 Pickup 1967 GMC K25 Pickup 1968 GMC K25 Pickup 1969 GMC K25 Pickup 1970 GMC K25 Pickup 1971 GMC K25 Pickup 1972 GMC K25 Pickup 1970 GMC Jimmy 2WD 1971 GMC Jimmy 2WD 1972 GMC Jimmy 2WD 1970 GMC Jimmy 4WD 1971 GMC Jimmy 4WD 1972 GMC Jimmy 4WD 1967 GMC Suburban 2WD 1968 GMC Suburban 2WD 1969 GMC Suburban 2WD 1970 GMC Suburban 2WD 1971 GMC Suburban 2WD 1972 GMC Suburban 2WD 1967 GMC Suburban 4WD 1968 GMC Suburban 4WD 1969 GMC Suburban 4WD 1970 GMC Suburban 4WD 1971 GMC Suburban 4WD 1972 GMC Suburban 4WD

Choose Your Vehicle