JFH

I have a 98 Z with a umi k member, and control arms, subframe conectors, looking to work on the rear now what is the best thing to start with torq arm or lower control arms or both?

rwb

Unless you are making serious power you can start with either one or both. You might want to upgrade your rear axle first since your 10 bolt can only hold so much torque before it goes. About 450 to 550 ftlbs.

Ultra_Z

tub adj tq arm... get that tq arm mount off your tranny's tail shaft! lcas and relos would help. better rear shocks??? i have a tub. tunnel mt tq arm and still have launching problems t56... need sticky tires i know that... lol