I've heard that they put alot of stress on the torque boxes (where the lower control arm mounts to the frame) and can cause rippage if it's weak or if you launch hard. I've heard that you can strengthen them by getting them welded in all the seams holding them on (i heard that they're not welded on very strong). I was considering getting them, but i'm not so sure anymore.
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previous name: 84stangLX
'84 Mustang 5.0 LX
my LX
'89 Mustang GT
my GT