This page lists 5 drivetrain parts for the 2020 Chevrolet Express 4500, across 4 part types, covering the 6.0L V8 engine. Every part shows its brand, manufacturer part number and fitment notes.
The drivetrain system on the 2020 Chevrolet Express 4500 moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. The largest groups are Axle / Differential Assembly (2 parts), Axle Bolt (1 part) and Axle Bumper (1 part). The other 1 part type covers the remaining 1 part.
Every part on this page is matched to the 6.0L V8 — the only engine offered in the 2020 Chevrolet Express 4500.
Every drivetrain part listed for the 2020 Chevrolet Express 4500 comes from GM GENUINE.
Each part number listed for the 2020 Chevrolet Express 4500 opens a page with every vehicle that part fits.
Axle / Differential Assembly
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 84447463 | 🇺🇸 US 🇨🇦 CA | Gear Ratio: 3-42Mounting Hardware Included: No | View on Amazon |
| GM GENUINE | 84596523 | 🇺🇸 US 🇨🇦 CA | Fits 3.73 Rear Axle Ratio (GT4)Positraction Limited-Slip Rear Axle (G80),Dual Rear Wheels(R05) | View on Amazon |
This table covers the Axle / Differential assemblies.
GM GENUINE supplies both parts for the 2020 Chevrolet Express 4500.
This group includes GM GENUINE 84447463 and GM GENUINE 84596523.
Axle Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 20920619 | 🇺🇸 US 🇨🇦 CA | Rearwith Locking Patch | View on Amazon |
This table covers the Axle bolts.
This group shows a single part: GM GENUINE 20920619.
Axle Bumper
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 06263975 | 🇺🇸 US 🇨🇦 CA | RearExcept Rear Spring (9Q4) | View on Amazon |
This table covers the Axle bumpers.
This group shows a single part: GM GENUINE 06263975.
Axle Hub Key
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 22760462 | 🇺🇸 US 🇨🇦 CA | 3.73 Rear Axle Ratio (GT4),4.10 Rear Axle Ratio (GT5) | View on Amazon |
This table covers the Axle Hub keys.
One part is listed for the 2020 Chevrolet Express 4500 — GM GENUINE 22760462.
Buying Drivetrain Parts for a 2020 Chevrolet Express 4500
On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.
- Confirm you have the 6.0L V8 engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the differential or transfer-case fluid with any axle or seal job while everything is already open.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Axle / Differential Assembly and Axle Bolt .
Frequently Asked Questions
How many drivetrain parts fit the 2020 Chevrolet Express 4500?
Our catalog currently lists 5 drivetrain parts for the 2020 Chevrolet Express 4500 across 4 subcategories and 1 brand, covering the 6.0L V8 engine. Each part is matched to the engine(s) it fits.
What are the signs of drivetrain problems on a 2020 Chevrolet Express 4500?
Common symptoms include clicking in tight turns, a clunk when shifting between drive and reverse, vibration that builds with speed, or gear oil on the inside of a wheel. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the differential or transfer-case fluid with any axle or seal job while everything is already open.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2020 Chevrolet Express 4500 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2020 Chevrolet Express 4500?
Every part on this page is matched to the 6.0L V8 engine. Then a torn CV boot caught early is a cheap boot kit; caught late it is a whole axle — inspect before deciding which to buy. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2020 Chevrolet Express 4500
Drivetrain Parts for Other Chevrolet Express 4500 Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.