That won't work unless you cut and weld a bunch of brackets on the axle housing and the car's frame.
The shocks are moved outward on '03-up models.
You'd probably be best-off having some custom shafts made.
Also, it's 31 spline axles, not 32 (this will make a huge difference when ordering axles).
Lastly, '06 was the first year for the 31-spline axles.
2007 Grand Marquis LS: 5.4 swap, 9.9:1 compression ratio, Comp XE268s, NPI pistons, PI heads ported by me, Accufab upper plenum, 75mm DBW throttle body, Factory PI intake with Chinese spacers, CVPI dual exhaust, CVPI torque converter, CVPI air-box and zip tube, J-Mod, 3.55 gears, FMS Trac-Loc differential
17" Dorman CVPI steelies, BFG Comp T/A 255/45 R17s