Frequently bought together
Description
A set of cab speaker brackets for 1967–1972 Chevy and GMC trucks running a relocated gas tank. They give 6.5" or 6x9" speakers a solid steel base inside the cab instead of a panel that flexes.
Features
- Laser cut from 18 gauge steel, pre-bent and formed.
- Two speaker size options: 6.5" or 6"x9".
- Sold as a set of two brackets.
- Adjustable base to allow for underlay, carpet and sound deadening.
- Added rigidity for better sound.
- All required mounting hardware included.
Fitment notes
For use with a relocated gas tank. Check the images for the speaker opening dimensions against the speakers you plan to run.
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
- 6772SB
- Material
- Aluminum Sheet Metal, Raw Steel
- Interior / Exterior
- Interior
- Brand
- LS Fabrication
- Weight
- 4.5 kg
Fits alongside
Most often bought with this part:
Installation
Made to be installed by the do-it-yourselfer, with all the required mounting hardware in the box.
Test fit the speakers in their openings, then test fit the brackets in the truck, before you finish the job — applications vary.
Reviews
Customer reviews
What owners are saying
6

Common questions
What speaker sizes do they take?
The brackets are offered in a 6.5" and a 6"x9" opening. The opening dimensions are in the product photos - measure your speakers against them and test fit the speakers in the openings, and the brackets in the truck, before final assembly.
Is the mounting hardware included?
Yes, all the required mounting hardware comes with them, and they are sold as a set of two.
Will they fit a big back window cab?
The 55-59 brackets are currently cut for the small back window cab only; the big window cab is a different shape and we do not have a version for it yet. On 47-54 cabs, 1947-1948 may need modification, and the brackets will not work alongside the factory in-cab gas tank.
How do I know it fits my truck?
This part is listed for 1967–1972 Chevy and GMC Blazer, C10, C20, C30, Jimmy, K10 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.
How long before it ships?
It is a stock item and leaves our warehouse in 1-3 business days. Transit after that is typically 2-5 business days in the United States. 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 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.
Question that is not answered here? Send us your year, make and model at info@lsfab.com and we will answer it before you order.
































Great fitment ! And fast shipping highly recommend !
very nice piece perfect fit
Great quality and fast delivery. Thank You
Perfect, exactly what was advertised.
Thanks for the 5 star review!