Not my best moment. I've removed all frame brackets for a custom 3 link build in front hoping for 2 to 2.5" front axle stretch. Also have a 6.4 motor so I can't use stock engine for help location. While grinding I removed my stock axle marks. Anyone know what the measurement from the front or back of the cross-member to stock front axle center is? Or from a specific bolt hole, steering gear hole or indentation from frame to stock center?

 

Do you still have the shock towers in there? is so that should give you a good reference. Due to the fact you want to move the axle forward by 2-2.5" that reference should get you fairly close.

 

Stock towers were removed and GR towers installed.