If I remember right , my exhausts are 2.5 " , but no H or X crossover , just 2 straight pipes , I added back the missing X brace under , you need that , maybe thats why its twisted..? Has the car been in a wreck , ever? I suspect that first...how about door jambs , they close and fit right? But you could not just add back the brace ,need to get it straight first... I use multi leafs , std type and reg. shocks on my 69 convert.... Bjorn