Core Support to Frame Rail Seal Pair for 1968-1972 Pontiac GTO with AC or

A proper frame rail seal helps the front end feel tight, aligned, and better protected from road grime.

Block road spray and grit from entering front support cavities.
Reduce vibration and rattles at the core support interface.
Support more consistent front-end panel alignment.
Protect rust-prone seams where the support meets the frame.

Enhance your classic ride with the Core Support to Frame Rail Seal from Collectors Auto Supply! Made from durable rubber, it fits various models. Order now!

Specifications:

Material: Core Support to Frame Rail Seal
Vehicle Fitment: Please see compatibility chart or give us a call to confirm

Q: What is a core support to frame rail seal?

It seals the interface between the core support and frame rail area to block debris and reduce vibration at a key front-end junction.

Q: What happens when it is missing?

Road spray and grit can enter front cavities more easily, and you may hear extra rattles or see uneven gaps near the support.

Q: Are there other names for a core support to frame rail seal?

Catalogs may list it under core support mount or frame interface sealing terms.

Core support mount seal
Frame rail to core support gasket
Front support insulator
Core support isolator seal
Front support frame seal

Names vary by manufacturer and OEM terminology.

Q: Does it help alignment?

It can help stabilize the support interface so panels and shrouds line up more consistently at the front end.

Q: Any install tips or cautions?

Confirm correct placement and orientation at each mount point, then tighten evenly so the seal does not distort.

Why You Should Ride With Us?

You can purchase this product directly from Collectors Auto Supply, where we specialize in classic car restoration parts and accessories. Finding the perfect part for your classic car can be difficult, and even frustrating. And let us be honest. What makes it worse is a general lack of customer love in the industry. That is why we are here, and that is why we are different. We are car people just like you, and we know what you need. And if we do not already know it, we're listening. So, contact us if you need help finding a part, or have an idea for how to improve our website, or anything else. Or if you want to do it the old-fashioned way, give us a call at 1 (800) 414-4462.