'90 f/s front bagging?

ok. i wanna lay the front of my 90 reg. cab fullsize on 18s for now maybe 20s later. will i need uppers and lowers? or spindles? or all three? and will djm controls work for bagging?

thanks,

stock A arms with a drop spindel will be fine for 20s

sweet.... it wont even hurt the upper ball joint? this could save me around $400

I HAVE GOT JUST BAGS AND CUPS AND BELL TECH DROP SPINDLES IN THE FRONT WITH STOCK CONTROL ARMS AND I LAID OUT PRETTY GOOD BUT HAD TO NOTCH THE FRAME FOR THE TIE RODS FOR CLEARANCE AND I HAD 18"S WITH THE STOCK INNER WHEEL WELLS BUT NOW THAT I'M ON 20'S I CANNOT LAYOUT WITH THE WHEEL WELLS SO I HAVE TO DO SOME CUTTING ON THE WHEEL WELLS AND MY WIFE JUST BOUGHT ME TUBULAR A ARMS TODAY ALSO THIS IS ALL ON A 1991 CHEV FULLSIZE EXT CAB SHORT BOX

thanks....

im layin 22s with the stock upper A arm and stock ball joint , i put on a set of Air Ride lowers when i put the 22s on but the stocks would still work i put them on cuz i had drug thru the stocks plus i got them for a retaredly cheap price....

a 2 inch drop spindel with stock A arms will lay 20s no probs