force headers competition headers truck force headers footnotes 1 this system ... frame must be removed 48 fits 6 speed zf transmissions and standard 5-speed 49 ... with provisions for oxygen sensor all parts are coated with hooker s metallic ... installation requires use of gm factory parts frame stand left #1705321 right # ... left #1250717 right #1250716 above parts also available from 75-78 skyhawk ...