I'd turn away from the idea of GT500 springs on a 4.0. The fronts are designed for the weight of a 4v 5.4l motor and will actually 'lift' the front of a 4.0 mustang because of the lighter motor. I've seen pictures of it and it's not pretty.
I'm not sure about the sway bars but its possible that they're bigger than even the GT bars, which are bigger than the Pony Package bars.
__________________ Black 2005 Mustang v6, 5 speed, IUP, EUP and Leather.
Razzi 1/4 window scoops, Mustang GT Sway Bars, Flowmaster American Thunder Single Exhaust, Clear Front Turn Signal Lenses, Demolet CAI, X-cal2 91 tune, Hurst Comp/Plus Shifter, FRPP T-Lock, Ford 3.73 gears |