I had a Full Coverage Front Grill Guard Installed and it lowered the front end.

YOU HAVE OTHER TROUBLE'S, NO WAY A GRILL GUARD CAN LOWER THE FRONT THAT MUCH. IT WOULD HAVE TO WEIGH AT LEAST A TON. NEW SHOCKS WILL NOT RAISE FRONT! SPRINGS WILL. BUT YOU NEED TO GET IT LOOKED AT FOR BROKEN PARTS. 4 TO 5" IS ABOUT THE LENGTH OF A DOLLAR BILL WHICH IS 6 INCHES LONG, THATS TO MUCH FOR A GRILL GUARD TO LOWER THE SUSPENSION,UNLESS IT WAS MADE OF RAIL ROAD TRACK. LOOK AT SPRINGS TO SEE IF THEY ARE BROKEN.

no you have other issues