A cable tension adjuster for adjusting tension between two cable sections includes a junction box. A slider is disposable within the junction box and includes a first slider wall, a cable coupling port opposite the first slider wall configured for coupling a first inner cable of a first cable section, and a second slider wall adjacent the cable coupling port. The first and second slider walls together partially define an internal cavity therebetween. A spool is disposable within the internal cavity and is couplable to a second inner cable of a second cable section. The spool includes a plurality of spool teeth. A biasing member is disposable within the internal cavity between the first slider wall and the spool. A locking clip is disposable within an aperture formed in the slider and includes a plurality of clip teeth configured for engagement with the plurality of spool teeth.