Best Plastic Complete Kits in 2026

Daisy
Last Updated: Jul 30, 2026

At a Glance: Our Top Picks for Plastic Complete Kits

USA Standard Gear (ZK GM12P) Master Overhaul Kit for GM 12-Bolt Passenger Car Differential
#TOP1
Usa Standard Gear (Zk Gm12P) Master Overhaul Kit
9.8
PM SCORE
USA Standard Gear (ZK D70-HD) Master Overhaul Kit for Dana 70HD Differential
#TOP2
Usa Standard Gear (Zk D70-Hd) Master Overhaul Kit
9.8
PM SCORE
USA Standard Gear (ZK GM9.25IFS-A) Master Overhaul Kit for GM 9.25 IFS Front Differential
#TOP3
Usa Standard Gear (Zk Gm9.25Ifs-A) Master Overhaul Kit
9.8
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Plastic Complete Kits of 2026

Market Overview
Plastic Complete Kits Reviewed
  • Reviews Analyzed: 53212 Items
  • PM Avg. Rating: 9.7 / 10
25 Products Evaluated
  • Highest Price: $310.93
  • Lowest Price: $85.00
  • Avg. Price: $159.39

Usa Standard Gear (Zk Gm12P) Master Overhaul Kit For Gm 12-Bolt Passenger Car Differential

USA STANDARD GEAR
ZK GM12P
12.00 X 12.00 X 3.00 Inches
6.45 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

USA Standard Master Overhaul kits let you finish your install with confidence

This kit uses Koyo bearings and races

Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable)

USA Standard Gear manufactures products that are engineered to surpass and exceed OEM specifications and eliminate points of failure through quality engineering, manufacturing, and quality control practices.

#TOP2

Usa Standard Gear (Zk D70-Hd) Master Overhaul Kit For Dana 70Hd Differential

USA STANDARD GEAR
ZK D70-HD
12.00 X 12.00 X 3.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

USA Standard Master Overhaul kits let you finish your install with confidence

This kit uses Koyo bearings and races

Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable)

Complete Installation Kit

#TOP3

Usa Standard Gear (Zk Gm9.25Ifs-A) Master Overhaul Kit For Gm 9.25 Ifs Front Differential

USA STANDARD GEAR
ZK GM9.25IFS-A
13.00 X 13.00 X 4.00 Inches
8.80 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

USA Standard Master Overhaul kits let you finish your install with confidence

This kit uses Koyo bearings and races

Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable)

Package weight of the Product: 8.8 pounds

Usa Standard Gear (Zk Gm14T-C) Master Overhaul Kit For Gm 14-Bolt Truck 10.5 Differential, Silver

USA STANDARD GEAR
ZK GM14T-C
12.00 X 12.00 X 3.00 Inches
7.25 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

USA Standard Master Overhaul kits let you finish your install with confidence

This kit uses Koyo bearings and races

Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable)

USA Standard Gear manufactures products that are engineered to surpass and exceed OEM specifications and eliminate points of failure through quality engineering, manufacturing, and quality control practices.

Usa Standard Gear (Zk Gm8.6) Master Overhaul Kit For Gm 8.6 Differential

USA STANDARD GEAR
ZK GM8.6
12.00 X 12.00 X 3.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Quick Performance Racing 9.86

Features

USA Standard Master Overhaul kits let you finish your install with confidence

This kit uses Koyo bearings and races

Includes carrier bearings and races,

Includes complete shim kit

Includes ing gear bolts, pinion nut, crush sleeve

Includes thread locker, marking compound with brush and gasket

Fit type: Vehicle Specific

#TOP6

Usa Standard Gear (Zk D60-F) Master Overhaul Kit For Dana 60 Front Differential

USA STANDARD GEAR
ZK D60-F
12.00 X 12.00 X 3.00 Inches
9.44 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Quick Performance Racing 9.86

Features

USA Standard Master Overhaul kits let you finish your install with confidence

This kit uses Koyo bearings and races

Includes carrier bearings and races

Includes pinion bearings and races, pinion seal

Includes complete shim kit, ring gear bolts, pinion nut

Fit type: Vehicle Specific

#TOP7

Usa Standard Gear (Zk Gm8.2Bop) Master Overhaul Kit For Buick/Oldsmobile/Pontiac 8.2 Differential

USA STANDARD GEAR
ZK GM8.2BOP
12.00 X 12.00 X 3.00 Inches
6.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Quick Performance Racing 9.86

Features

USA Standard Master Overhaul kits let you finish your install with confidence

This kit uses Koyo bearings and races

Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable)

USA Standard Gear manufactures products that are engineered to surpass and exceed OEM specifications and eliminate points of failure through quality engineering, manufacturing, and quality control practices.

#TOP8

Usa Standard Gear (Zk F9-A-Spc) Master Overhaul Kit For Ford 9 Lm102910 Differential With Solid Spacer

USA STANDARD GEAR
ZK F9-A-SPC
13.00 X 12.00 X 3.00 Inches
5.90 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Quick Performance Racing 9.86

Features

USA Standard Master Overhaul kits let you finish your install with confidence

This kit uses Koyo bearings and races

Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable)

Fit type: Vehicle Specific

#TOP9

Usa Standard Gear (Zk Gm8.6-B) Master Overhaul Kit For Gm 8.6 Differential

USA STANDARD GEAR
ZK GM8.6-B
12.00 X 13.00 X 3.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

USA Standard Master Overhaul kits let you finish your install with confidence

This kit uses Koyo bearings and races

Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable)

USA Standard Gear manufactures products that are engineered to surpass and exceed OEM specifications and eliminate points of failure through quality engineering, manufacturing, and quality control practices.

#TOP10

Usa Standard Gear (Zk Gm55Chevy) Master Overhaul Kit For Gm Chevy 55P/55T Differential

USA STANDARD GEAR
ZK GM55CHEVY
12.00 X 13.00 X 3.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

USA Standard Master Overhaul kits let you finish your install with confidence

This kit uses Koyo bearings and races

Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable)

Package weight of the Product: 6.45 pounds

#TOP11

Usa Standard Gear (Zk D44-Jk-Std) Master Overhaul Kit For Jeep Jk Non-Rubicon Dana 44 Rear Differential

USA STANDARD GEAR
ZK D44-JK-STD
12.00 X 12.00 X 3.00 Inches
7.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
SG MARKETPLACE 9.60

Features

USA Standard Master Overhaul kits let you finish your install with confidence

This kit uses Koyo bearings and races

Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable)

Package weight of the Product: 7.00 Pounds

Usa Standard Gear Zk C9.25Zf Master Differential Rebuild Kits

USA STANDARD GEAR
ZK C9.25ZF
13.00 X 13.00 X 4.00 Inches
7.38 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Uses Koyo bearings and races

Fits 2011 and up Chrysler 9. 25" ZF rear axles

Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve, thread locker, marking compound with brush and gasket

Item model number : ‎SP121-6 PK

Usa Standard Gear (Zk C9.25-R-B) Master Overhaul Kit For Chrysler 9.25 Rear Differential

USA STANDARD GEAR
ZK C9.25-R-B
12.00 X 12.00 X 3.00 Inches
6.54 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Quick Performance Racing 9.86

Features

USA Standard Master Overhaul kits let you finish your install

Fits 2001 to 2009 Chrysler 9. 25" rear Uses Koyo bearings and races

Compatible Make / Model - Chrysler Aspen (2006-2009), Dodge Dakota (2001-2010), Dodge Ram 1500 1/2 Ton (2001-2010), Dodge Ram Van 1500 1/2 Ton (2001-2003), Dodge Ram Van 2500 3/4 Ton (2001-2003), Dodge Durango (2001-2009) and Mitsubishi Raider (2006-2009).

Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve, thread locker, marking compound with brush and gasket.

#TOP14

Usa Standard Gear (Zk D70-U) Master Overhaul Kit For Dana 70U Differential

USA STANDARD GEAR
ZK D70-U
12.00 X 13.00 X 3.00 Inches
8.87 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Uses High Quality Koyo Bearings and Races

USA Standard Master Overhaul kits let you finish your install with confidence

This kit uses Koyo bearings and races

Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable)

#TOP15

Usa Standard Gear (Zk D44-Rear) Master Overhaul Kit For 30-Spline Dana 44 Rear Differential

USA STANDARD GEAR
ZK D44-REAR
12.00 X 12.00 X 3.00 Inches
6.90 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

USA Standard Master Overhaul kits let you finish your install with confidence

This kit uses Koyo bearings and races

Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable)

USA Standard Gear manufactures products that are engineered to surpass and exceed OEM specifications and eliminate points of failure through quality engineering, manufacturing, and quality control practices.

#TOP16

Usa Standard Gear (Zk Isam) Master Overhaul Kit For Suzuki Samurai Differential

USA STANDARD GEAR
ZK ISAM
12.00 X 13.00 X 3.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

USA Standard Master Overhaul kits let you finish your install with confidence

This kit uses Koyo bearings and races

Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable)

USA Standard Gear manufactures products that are engineered to surpass and exceed OEM specifications and eliminate points of failure through quality engineering, manufacturing, and quality control practices.

#TOP17

(Zk Gm8.5) Master Overhaul Kit For Gm 8.5" Differential

USA STANDARD GEAR
ZK GM8.5
0.00 X 0.00 X 0.00 Inches
6.12 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Quick Performance Racing 9.86

Features

USA Standard Master Overhaul kits let you finish your install with confidence

This kit uses Koyo bearings and races

Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable)

Included are Timken bearings and races along with high quality seals and small parts. Included in this kit are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve , thread locker, marking compound with brush, and gasket.

fit type: Vehicle Specific

Usa Standard Gear Zk Gm7.5-B Master Overhaul Kit For Gm 7.5"/7.625" Differential

USA STANDARD GEAR
ZK GM7.5-B
12.00 X 12.00 X 3.00 Inches
3.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

usa standard master overhaul kits let you finish your install with confidence

this kit uses koyo bearings and races

included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable)

Fit type: Vehicle Specific

#TOP19

Usa Standard Gear (Zk D44) Master Overhaul Kit For Dana 44 Differential With 30 Spline

USA STANDARD GEAR
ZK D44
12.00 X 12.00 X 3.00 Inches
5.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

USA Standard Master Overhaul kits let you finish your install with confidence

This kit uses Koyo bearings and races

Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable)

Complete Installation Kit

Yukon Gear Zkgm8.5-Hd Master Overhaul Kit For Gm 8.5" Differential

USA STANDARD GEAR
ZK GM8.5-HD
12.00 X 12.00 X 3.00 Inches
6.11 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Quick Performance Racing 9.86

Features

USA Standard Master Overhaul kits let you finish your install with confidence

This kit uses Koyo bearings and races

Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable)

USA Standard Gear manufactures products that are engineered to surpass and exceed OEM specifications and eliminate points of failure through quality engineering, manufacturing, and quality control practices.

#TOP21

Usa Standard Gear (Zk D30-Jk) Master Overhaul Kit For Jeep Jk Dana 30 Front Differential

USA STANDARD GEAR
ZK D30-JK
12.00 X 12.00 X 3.00 Inches
6.90 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Drivetrain America 9.65

Features

usa standard master overhaul kits let you finish your install with confidence

this kit uses koyo bearings and races

included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable)

Fit type: Vehicle Specific

#TOP22

Usa Standard Gear (Zk Gm11.5) Master Overhaul Kit For Gm/Chrysler 11.5 Aam Differential

USA STANDARD GEAR
ZK GM11.5
12.00 X 12.00 X 3.00 Inches
6.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

USA Standard Master Overhaul kits let you finish your install with confidence

This kit uses Koyo bearings and races

Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable)

USA Standard Gear manufactures products that are engineered to surpass and exceed OEM specifications and eliminate points of failure through quality engineering, manufacturing, and quality control practices.

#TOP23

Usa Standard Gear (Zk D44-Rev) Master Overhaul Kit For Dana 44 Reverse Rotation Front Differential

USA STANDARD GEAR
ZK D44-REV
12.00 X 12.00 X 3.00 Inches
7.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Quick Performance Racing 9.86

Features

USA Standard Master Overhaul kits let you finish your install with confidence

This kit uses Koyo bearings and races

Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable)

Package weight of the Product: 6.80 pounds

Usa Standard Gear (Zk D44-Dis) Master Overhaul Kit For Dana 44 Front Differential

USA STANDARD GEAR
ZK D44-DIS
12.00 X 12.00 X 3.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Quick Performance Racing 9.86

Features

USA Standard Master Overhaul kits let you finish your install with confidence

This kit uses Koyo bearings and races

Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable)

Complete Installation Kit

Usa Standard Gear (Zk F8.8) Ford 8.8" Diff Master Overhaul Kit

USA STANDARD GEAR
ZK F8.8
12.00 X 12.00 X 3.00 Inches
6.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Uses High Quality Koyo Bearings and Races.Material:Alloy Steel,Rubber,gasket material,marking compound,threadlocker

Complete Installation Kit

Top 10 complete kits Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Usa Standard Gear 25

Top 10 complete kits Brands Pie Chart


We've carried out a comprehensive analysis of 53,212 reviews on complete kits, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select complete kits priced around $159.39, with top brands including and

Our team of expert editors reviewed these high-quality items and handpicked the top 25 complete kits for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include and .

We are dedicated to assisting our users in finding the right kits Products based on their needs, saving them considerable time when choosing which complete kits to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.