I think you're going to have to live with some of that. Old muscle cars had a lot more flex even new and verts are the worst. My '70 Vette used to feel like it was falling apart when you went over railroad tracks and that was considered a fairly good chassis at the time. It's probably the windshield frame flexing. Was there any rust repair done in that area?Good God this bird has a new creak and popping sound coming from the rear view mirror area. Haven't done much the past two years and even drove it infrequently as I was unemployed didn't need another headache. My new job is a 40% paycut so, my plans to take it to a tuner in Long Valley will need to wait. @UtahJoe does your completely rebuilt Mustang sound like every body panel is rattling off?View attachment 258010
Not that I can see, it's was a pretty clean car from AZI think you're going to have to live with some of that. Old muscle cars had a lot more flex even new and verts are the worst. My '70 Vette used to feel like it was falling apart when you went over railroad tracks and that was considered a fairly good chassis at the time. It's probably the windshield frame flexing. Was there any rust repair done in that area?
I spent probably the first month finding rattles and quieting them. But 60s cars with big engines vibrate things loose. They will never feel good driving over rail road tracksGood God this bird has a new creak and popping sound coming from the rear view mirror area. Haven't done much the past two years and even drove it infrequently as I was unemployed didn't need another headache. My new job is a 40% paycut so, my plans to take it to a tuner in Long Valley will need to wait. @UtahJoe does your completely rebuilt Mustang sound like every body panel is rattling off?View attachment 258010
I spent probably the first month finding rattles and quieting them. But 60s cars with big engines vibrate things loose. They will never feel good driving over rail road tracks
When I drove my friends Beatle I got nervous as I got up to a rough section of railroad tracks, like 4 or 5 sets in a row. Felt almost like a modern car.
Is the Firebird body on frame or unibody? If unibody it's probably going to be extremely flexible.