I was wondeing if it wss possible to put p71 front suspension on my 97 grand marquis. I want to put a push bar on it . Also beefed up rear suspension

 

A 2003 front suspension WILL NOT FIT on your '97 Marquis.
'95 - '97 Grand Marquis suspensions are identical --
Here's what I did --
MOOG FRONT coil springs with Urethane isolators.
KYB Gas-A-Just shocks -- FRONT = KYB #KG5458
1 1/4th-inch front anti-sway bar with greaseable urethane bushings.
MOOG greaseable ball joints, tie rods, idler arm, end links.
Urethane control arm bushings (front).
For the REAR:
1" rear anti-sway bar with Energy Suspension Urethane bushings.
KYB Gas-A-Just shocks -- REAR = #KG5521
Energy Suspension end link kit - with urethane bushings.
This set-up allows long distance, high-speed cruising through the mountains and deserts of the Southwest.