Availability
1981 CHEVROLET K20 Transmission & Drivetrain
SPRING AND PIN KIT
Part Number: SPZ-17011
Not Yet Reviewed
Estimated Ship Date: Mar 10, 2026 if ordered today
Estimated Ship Date: Mar 10, 2026 if ordered today
USA Standard Ring & Pinion gear set for 10.5" GM 14 bolt truck in a 4.56 ratio
Part Number: SPZ-36184
Not Yet Reviewed
Estimated Ship Date: Mar 10, 2026 if ordered today
Estimated Ship Date: Mar 10, 2026 if ordered today
Ring and Pinion Gears, 5.13:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 10.5 in. (14-bolt), Set
Part Number: SPZ-36187
Not Yet Reviewed
Estimated Ship Date: Mar 10, 2026 if ordered today
Estimated Ship Date: Mar 10, 2026 if ordered today
Axle Shafts, Ten Factory, Front Left Inner , 4340 Chromoly, Cut to Fit, 22.00 Length, Dana 44, Each
Part Number: MGR-MG20440
Not Yet Reviewed
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Axle Shaft; 22" length, Blank
Part Number: MGR-MG20600
Not Yet Reviewed
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Axle Shaft; 39" length, Blank
Part Number: MGR-MG20601
Not Yet Reviewed
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Axle Shaft, Direct Fit, 4340 Chromoly, 35-Spline, 12.000 in. Length, Chevy, GMC, Each
Part Number: MGR-MG20650B
Not Yet Reviewed
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Differential Ring and Pinion, Differential Ring and Pinon Front and Rear Complete Kit
Part Number: MGR-MGK-207
Not Yet Reviewed
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Axle Shaft, Direct Fit, 4340 Chromoly, 30-Spline, 19.150 in. Length, Chevy, GMC, Each
Part Number: MGR-MG20132B
Not Yet Reviewed
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Universal Joint U-Bolt
Part Number: MGR-MGUB1350
Not Yet Reviewed
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Ring and Pinion Bearing Kit
Part Number: MGR-GM105IK
Not Yet Reviewed
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Ring and Pinion Installation Kit, GM, 8.875 in., Passenger Car, Kit
Part Number: MGR-GM12IK
Not Yet Reviewed
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Tapered Cup, TAPERED CUP OD 3.7500"-TIMKEN
Part Number: MGR-HM804810T
Not Yet Reviewed
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Wheel Bearing Race, Front Wheel Inner, Each
Part Number: MGR-JLM104910T
Not Yet Reviewed
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Differential Carrier Gear Kit
Part Number: RMG-XL-4048
Not Yet Reviewed
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Differential Carrier Gear Kit
Part Number: RMG-XL-4062
Not Yet Reviewed
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Spring, SPRING,COMPRSN, .25D,250 LB/IN
Part Number: PWT-8011001ZAT
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Spring, SPRING,COMPRSN,15 LB/IN,IN, NS
Part Number: PWT-8021001ZBG
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Spring, SPRING,COMPRSN, 500 LB/IN,OUTR
Part Number: PWT-8031001ZAV
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Differential Carrier, Rear - Grip Pro GM 8.875" Truck 30 Spline 2.76-3.42
Part Number: PWT-GT238730
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Ring and Pinion Kit
Part Number: RMG-GM95342
Not Yet Reviewed
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Spool, Full Size, Steel, 28-Spline, 10-Bolt, GM 8.5 in., Each
Part Number: RMG-81-1028-1
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Ring and Pinion Installation Kit, GM 9.5 in., Rear, Chevrolet, GMC, Kit
Part Number: ETN-K-GM95-96
Not Yet Reviewed
Estimated Ship Date: Mar 18, 2026 if ordered today
Estimated Ship Date: Mar 18, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
Tapered Cone, TAPERED CONE ID 1.8750"-TIMKEN
Part Number: MGR-HM804846T
Not Yet Reviewed
Estimated Ship Date: Mar 13, 2026 if ordered today
Estimated Ship Date: Mar 13, 2026 if ordered today
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