Frequently bought together
Description
Once you have filled the holes and seams in the firewall of a 1947–1954 Chevy or GMC pickup, the factory inner fender fillers no longer suit the work, and leaving that area open leaves it exposed. These extensions close the gap without drilling holes in fresh paint.
They are meant for 1947-54 Chevy and GMC trucks where the firewall has been smoothed and painted. The extensions bolt in with hidden hardware that comes with them, so the finished firewall stays clean and you are not putting new holes in it.
Features
- Laser cut and pre-formed from 18 gauge steel.
- Bolts in with hidden supplied hardware.
- Fully adjustable to fit your particular truck.
- Can be painted or coated any color you want.
- Sold in pairs.
Each extension is fully adjustable, which helps when no two old trucks line up quite the same way. They are laser cut and pre-formed from 18 gauge steel and sold in pairs, ready to paint or coat in whatever color your 1947-1954 Chevy or GMC engine bay calls for.
Truck compatibility and specs
Fits these trucks
1947–1954
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. Not sure what year your truck is? Decode its VIN. Parts from another year on it? Check what swaps.
Specifications
- Part number
- 4754FWE
- Brand
- LS Fabrication
- Material
- Aluminum Sheet Metal
- Interior / Exterior
- Exterior
- Weight
- 0.2 kg
Fits alongside
Most often bought with this part:
Installation
The extensions bolt in with hidden supplied hardware, so you do not have to drill into a painted firewall.
They are fully adjustable, which lets you dial in the fit on your own truck. The panels are made to be installed by the do-it-yourselfer.
Reviews
Customer reviews
What owners are saying
7
Inner Fender Extension - 47-54 GMC Chevy Truck
Common questions
Does the panel arrive finished, or does it need work?
It ships bare, ready for you to fit and then prep and paint, coat or cover however suits the build.
Can I bolt it in instead of welding?
It depends on the panel. Several go in more than one way - laid over the existing panel, butt welded, screwed, riveted or bonded - and the Features list and installation notes on this page say what this one is set up for.
How much fitting should I expect?
Test fit before anything is welded or drilled. Fifty years of body work, previous repairs and factory tolerance mean no two cabs or beds are identical, so expect some final fitting to your own truck.
How do I know it fits my truck?
This part is listed for 1947–1954 Chevy and GMC 3100, 3800 and Suburban. 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.
How long before it ships?
It is a stock item and generally ships within 1-3 business days. Carrier transit time is on top of that, and larger orders can arrive in more than one box on different days.
What if it is not right for the truck?
You have 30 days from delivery to request a return. The part needs to come back new, uninstalled and in its original packaging - once a part has been trimmed or welded it cannot go back. Return shipping is at your cost, and we ask that returns come by USPS. Made-to-order, sale and clearance items are final sale. The full terms are on our returns page.
Still not sure? Contact us before you order.
Thanks for the reviews and support William!
Very nice, good quality product
Nicely made part for what it is. Fast shipping.
Perfect fit