Just bought a set of Spohn LCA off E-bay for a 4th Gen Firebird/Camero, standard non-adjustable. Are they the same length, bracket widths where they bolt into the same? I was thinking of taking them to the Chasis *** here in town and having him make them adjustable. Now with that being said, by altering the LCA length to change the pinion angle to -3 will it twist/push the rear end too far back and make it off center in the wheel wells? Or, should I keep them just as they come in one peice and get an adjustable torque arm? I've read the torque arms the way to really improve bite, but since it's a strip use only application I was hopin adjustable LCA would do the same thing. Lemme know. I had zero wheel hop and so-so 60' times with the current factory set-up, but I want to tweak and pull some more out of what I got. Hopein the suspension mods will improve my 1/4mi. time a little as every little bit helps.

 

They are the exact same part as the 3rd gen lca's. Fourht gen and 3rd gen rear ends share the same parts....i.e, panhard, shocks, springs, lca's etc.

 

That's all I needed to hear, thank you!!