Another trick if you have a stock one in good condition, is to take a piece of angle iron and weld it to the stock one to stiffen it up. You may run into a problem if it has the hole for the steering stabililer, though. Mine is 1-1/4", .281 wall DOM tubing with (I think) 1-1/2" x 1-1/2" x 1/4" angle welded to it. If memory serves me correct, the heims are 3/4 thd. with a 7/8 hole. I just drilled out the taper and used the appropriate sized bolt.
Pete
'83 K5, 350 TBI (ex 6.2), 700R4, NP208, Dana 60/14 bolt, 4.56s, Detroits, 3" lift, 15-39.5x15 TSLs
'97 Dodge 2500 4x4 CC LB Sport, Cummins 5 spd