I hava a t bird  ps rack  with mmII cross member in a 1955 studebaker,Tires hit side of frame in front before rack runs out of travel ,what options do  I have ,can a external stop be added? Also tubular A arms thanks Ken  

u could get smaller tires or
rims with a wider offset
or just be aware of cutting the wheel to much. seems like u should only have this problem on tite turns.
to add a stop u would probly have to have the rack disassembled and added inside?