Picked up my 76 T/A for $700.00 400/400 car.
Then again.. I only paid something like $450.00 for my 69 bird.
( I'm cheap
Someone told me once.. that certain 2nd gen sub frames wont interchange.
Something to do about the very front rails being different for the bumpers.
and changes under the cowl, widening the mounting points.
Last I knew, if similar to a Camaro.
71-77 were the exact same fenders, just different headers and headlamp panels