I`ve Got A 83 F150.i Want To Convert To The 4.5 Wheel Pattern .the Rear Is Easy If I Convert To 9" Axle In The Early 80`s The F100 Had The Small Circle .on The Front I Converted To The Late Model Spindles And Drop Beams So I Cant Use The Rotors Off Of The Older Truck.does Any One Know Of A Rotor Off Of Another Vehicle With The Same Diameter And The Small Bolt Circle .they Do This On Some Foreign Trucks By Using Toyota Stuff On The Other Jap Trucks To Convert To 5 Lug.i Know I Might Have To Play With The Bearings A Little But The Ability To Get A Bigger Variety Of Wheels In Different Offsets Is Worth It To Me...... Thanks