Which traction bars to use

[Jetstuff]

I'd run the black, square tube "J' bolt bars... Paint em yellow and buy the repro decals. I looked a long time to find a set of square tube bars for my Mustang. If you're really gonna drive the car hard or race it, the J bolts take a lot of load off the stock U (or T) bolts. It's not too hard to lengthen the bars to get the bumper under the eye, and with a little work, you can make them appear unmodified ...

"An old-school hot rodder once told me that bars with the rear extension help prevent reverse spring wrap under hard braking,"

I think the rear clamp bolt can be used to stiffen the rear half of the spring pack or preload the spring. The front "u" bolt keeps the bar from hitting the street under hard braking (REALLY bad if it happens.....)