This is where Porsche let us VW people down. They changed the 944 suspension, front and rear, in 1986. The late rear parts do interchange with the early car but the front is a different story. The late mounting flange, on the spindle, was changed for the strut mount. Also, the caliper mount was increased from 76mm to 94mm (as you said it's wider). Some 944's even have a 19mm ball joint! The Turbo spindles don't bolt to our struts. To answer your question in order to make this work modifications/fabrication will be needed.