[Guest]

I understand the long arm concept, but why are the control arms replaced when the stock geometry is used? is there a reason other than strength compared to the crappy stock ones?

 

[elusive]

they are LONGER...yes ee=ven the short rm kits...
some kits only replace the lower arm and retain the stock upper because the upper isn't affected by the lift as much.
just like when you lift the jeep and need longer driveshafts