Frequently bought together
Description
Are you looking for the best looking A/C brackets for your 1947-53 Chevy/GMC 3100? Then you have come to the right place! Other manufacturers brackets just don't look right in these beautiful round trucks! That's why at LS Fabrication we've come up with a better option.
Our fiberglass A/C brackets bolt under the dash on both ends using factory holes. They accept round vents up to 3"diameter. Holes will need to be cut for your specific vents. New stainless steel hardware is provided (Make sure to use anti seize) to mount your new A/C brackets.
Trimming will be required for your specific steering column size and placement.
Sold as a Pair. Driver and passenger. (VENTS NOT INCLUDED)
Our A/C brackets come coated with a black gel coat and are ready for bodywork & paint or wrapped in a textile of your choice. Made 1/4" short at to accommodate kick panels and upholstery. Slight imperfections and chips are possible and may require bodywork.
Optional Center Mount AC Bracket is a 16 gauge Stainless Steel bracket that mounts to factory bolt holes under the dash. Bracket and vents is hidden from line of site. AC vent holes are a standard 2.5" and required hardware for mounting is included. Please reference last 2 photos above.
Installation Video:
Also check out these 3 or 4 knob controller that can be used on the driver side A/C Bracket:
Hardware included:
- ✅ 4x 5/16" SS Bolts
- ✅ 4x 5/16" SS Washers
- ✅ 4x SS Nylon Lock Nuts
- ✅ 2x 1/4" SS Bolts
- ✅ 2x 1/4" SS Washers
- ✅ 2x1/4" SS Nylon Lock Nuts
Truck compatibility and specs
Fits these trucks
1947–1953
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
- 4753ACVENT
- Material
- Aluminum Sheet Metal, Raw Steel
- Brand
- LS Fabrication
- Interior / Exterior
- Interior
- Weight
- 0.65 kg
Installation
The brackets bolt under the dash at both ends using factory holes. New stainless steel hardware is provided, and it is worth using anti-seize on it. Holes for your specific vents have to be cut, and trimming is required for your steering column size and placement.
Hardware included: 4x 5/16" stainless bolts, washers and nylon lock nuts, plus 2x 1/4" stainless bolts, washers and nylon lock nuts.
Reviews
8 reviews for Under Dash AC Vent Brackets – 47-53 GMC Chevy Truck
Common questions
How do I know it fits my truck?
This part is listed for 1947–1953 Chevy and GMC 3100, 3600, 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 Canada Post. Made-to-order, sale and clearance items are final sale. The full terms are on our returns page.
Can I install this myself?
It is designed for an at-home install. Read the fitment notes and the Installation tab on this page before you start for anything that needs drilling, trimming or welding, and where an installation guide or video exists for the part it is linked there.
Still not sure? Contact us before you order.

























SONNY (verified owner) –
Charles E. (verified owner) –
Fitment is very nice. Hides a/c unit under the dash as I hoped it would.
Marcus Barker (verified owner) –
Part quality and fit is perfect!
DONALD AINSWORTH (verified owner) –
Great service and providing great products. I have bought many times with no regrets.
Amy adams (verified owner) –
Jere N. (verified owner) –
Like the fit and finish
Salvador Garcia (verified owner) –
Great product, nice fitment and they look awesome! They work perfect with vintage air system.
Patrick (verified owner) –
Bad ass product. Fit great on my truck. Easy to install would forsure buy again. Nice construction great job ls fab