I have read that many have a theory that if you need a stabilizer, then something is wrong with your suspension. I put on close to 2000 miles on my newly built T this last year before I developed a death wobble at about 35 mph after hitting a small pot hole on the right shoulder. Situation before I touched anything, checked alignment it was :
Camber Left= -1/2degree right= -1 degree
Caster left= +6.5 degrees, right= 7 degrees
Toe in= 1/4"
Tires are radials MT 24by 5/15" Tire inflation L= 32 psi, right 27psi
Found one jamb nut loose on the tie rod, both wheel bearings were loose and out of spec.
Right front tire was out of balance
The fix:
1)Remove and inspect wheel bearings, repack and torque to 20lb/ft then loosen nut , re-torque while spining tire(no brake caliper), loosen one flat install cotter pin. Checked by spining tire, very slight drag, they are tighter than normal spec, so I'll leave them there and watch for wear but think I'll be fine with that light front end.
2) Inflate both front tires to 22psi, balance rt front.
3) re-align front end to:
Caster: 6 degrees both sides
Toe out 1/16"
4) Torque all heims and tighten jamb nuts.
5) Install SoCal steering dampner
Even though I did find a problem before jumping to the steering dampner, installing the dampner made a big difference on how the car rode. My theory is we are driving around with parts designed over 100 years ago at triple the speed, if they would of had a steering dampner back then, you could of bet Henry would of stuck it on.
BTW, I like those radius arms the Pope made. Pretty beefy, some may say over built, I say it is good insurance.