If you have ever removed the front Subframe from your AE86, you may have noticed that it was designed to have a bit of play between the bolts and subframe. Over time the holes enlarge and allow the subframe to shift as you hit bumps in the road. We have produced these aluminum Subframe Lock Collars to take up this extra space and fully tie your subframe to the front frame rails. They fit around the bolts and crush in between your Subframe and Chassis! This results in more precise suspension and braking function!