Other differences between the SWB CAT and the XLS include,
SWB CAT does not have turnbuckles
SWB CAT steering bellcranks does not pivot on the brass inserts but on the screw itself (nut on top)
SWB CAT has rear stabilizer bar
SWB CAT has zero degree front shock mount
SWB CAT only has one hole setting at the top rear mount on the gearbox
SWB CAT is narrower at the front and rear (no extra spacers) and as such has a narrower steering rack
SWB CAT also has shorter slider shafts
SWB CAT wing wire is mounted on the top of the shock tower (XLS is mounted on the lower mount)
SWB CAT normally built with only one chassis post (the one where the servo is mounted on)
Some SWB CATs have the gullwing rear shock tower
Hope this helps
