Sorry, I do not know of a "traction" bar for the G-body.
Many improve traction by decreasing the deflection of stock upper and lower rear control arms by: (1) boxing arms, and (2) replacing bushings with either stiffer rubber or polyurathane bushings.
Many control natural squat of stock rear suspension by pre-loading right and left side with air bags.
Others reduce natural squat of stock rear suspension by relocating upper and/or lower connection points to change instant center (like the GNX suspension). My best 60-ft times to date was with this type of setup.
I have limited experience with the above listed options.
I do not have any experience with replacing the rear suspension with a four parrallel link setup with panhard bar for lateral control (expensive). I have seen some fast cars with this setup.
Do a search in the Drag Racing section of this BB, there are many comments regarding this subject, and many others with a lot more experience that me.
Deep Enough
Donald McMullin
