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Description
Reproduction High Hump Transmission Cover – 1967–1972 Chevy GMC C/K Truck Suburban | 1969–1972 Blazer Jimmy
24" L x 18" W x 7¾" H | 4WD & Big Block Fitment | Direct-Fit Reproduction
Restore the floor of your classic C10, K10, or square-body Chevy GMC with this reproduction high hump transmission cover — the correct piece for 4WD, 4x4, and big block applications where standard low-hump covers simply don't have enough clearance.
What Is the High Hump Transmission Cover?
Also called the transmission tunnel or transmission hump, this metal floor panel covers the area where the transmission and drivetrain components pass through the cab floor. The raised "high hump" profile is specific to 4WD and big block equipped trucks, providing the extra vertical clearance needed for the higher-mounted transmission and shifter assembly.
Product Highlights:
- ✅ Correct for 4WD, 4x4, and big block applications — provides necessary transmission-to-floor clearance
- ✅ Dimensions: 24" L x 18" W x 7¾" H — full-size reproduction of the original high hump profile
- ✅ Reproduction quality — correct shape and size for accurate fitment in the cab floor opening
- ✅ Replaces damaged, rusted, or modified originals — restores both appearance and structural integrity
- ✅ Some fitting and trimming may be required for a perfect installation
Compatible Vehicles:
| Year Range | Make | Model |
|---|---|---|
| 1967–1972 | Chevrolet | C10, C20, C30, K10, K20, K30 Pickup |
| 1967–1972 | GMC | C15, C25, C35, K15, K25, K35 Pickup |
| 1967–1972 | Chevrolet | Suburban |
| 1967–1972 | GMC | Suburban |
| 1969–1972 | Chevrolet | Blazer |
| 1970–1972 | GMC | Jimmy |
Get your classic's interior back to factory-correct condition. Order today and give your 4WD or big block build the clearance it needs.
Truck compatibility and specs
Fits these trucks
1967–1972
Not sure this is the right part for your truck? Send us your year, make and model and we will confirm the fit before you order.
Specifications
- Part number
- 415-4067
- Brand
- Auto Metal Direct
- Material
- Raw Steel
- Weight
- 4 kg
Installation
Plan on some fitting and trimming to get the cover sitting right in the floor opening.
Reviews
Common questions
How do I know it fits my truck?
This part is listed for 1967–1972 Chevy and GMC Blazer, C10, C1500, C20, C30, Jimmy and others. The full year, make and model list is in the Truck Compatibility tab on this page. If your truck has been modified, or you are between two of the year ranges we list, send us the year, make and model and we will confirm the fit before you order rather than after.
What if it is not right for the truck?
You have 30 days from delivery to return it by mail. Return shipping is on you, and the part needs to come back uninstalled and unmodified - once a panel has been trimmed or welded it cannot go back. Made-to-order items are final sale. The full terms are on our returns page.
Can I install this myself?
It is designed for a home install with ordinary hand tools, and the fitment notes on this page list anything that needs drilling, trimming or welding. Where an installation guide or video exists for the part it is linked in the Installation tab.
Still not sure? Contact us before you order.
Reviews
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