dirt circle track 1/3 mile tbar size question

Well it could be the other way around.... not unusual to see a heavier LF.

In the dirt late model world today you may see a stacked RF spring using two coil over springs seperated by a seperate spring seat and adjuster.

And throw away your math skills because a a 400# bottom spring topped by a 200# top spring may rate at 300# when in the spring smasher!!!