No. the only servo saver is mounted on the servo. If you put all the stress on a single servo and saver, there is not a servo saver made that can handle the load.
Try taking off a servo horn off and drive the truck and see how much tension one can take before the saver kicks in and is overworked.
I broke a servo arm on my saver during a race and had alot of trouble turning left. The remaining saver could not turn the wheels with unloading. A couple of laps I almost went off the track at the end of the straight because the wheels would not turn, going to fast.
A couple of guys at lstforums have tried every which way to accomplish this and could not make it work. It just comes down to servo mounted savers are not strong enough to do the job.