Shocks: looking for Blistein quality at KYB price.

66fs said
Not buying that one. I'm running .88 factory bars and the original 6 leaf Formula S rear springs with Bilstein shocks on the 66. I definitely don't need bigger bars. I have the original .89 on the 68 383 Barracuda, they work also. Neither sets of bars are going into the trash. One size does not fit all.

There’s nothing to “buy”, with radial tires and the physical world we inhabit these cars are substantially undersprung with factory torsion bars. There’s no equation or modern method of determining wheel rates for an application that will tell you your car is correctly sprung with the factory bars and a modern set of tires.

Your car, run it how you want. But your car IS undersprung, and it no doubt handles like it is.

go-fish said
They quit equipping new cars with bias ply in 75. I figure they rode on new radials and smaller bars for the 75 MY. They probably realized that they needed a bigger bar for radials and came out with the .85 in ‘76.

Is this plausible, @junkyardhero ? I’m hypothesizing the increase in bar sizes correlating to radial use.

@Mattax is right, the A’s didn’t come standard with radials. The complete changeover for Mopar was when the F’s replaced the A’s, the F’s got radials standard. And, surprise, they also got a redesigned suspension to go with them to correct the differences between bias ply and radial tire use.