I will be making aftermarket parts and have started with reuseable drilling jigs/templates to perform the popular Shelby modification to relocate the upper control arms for better handling If you are anal like me and like things to be "dead on" and not "close enough" then consider this. No paper template and pilot drilling just bolt on and drill. CNC machined to exact specs. $25 plus shipping. Paypal or cash accepted. Shipped from Cincinnati Ohio.