1971 F100 gets 2017 Mustang IRS part 4

1971 F100 gets 2017 Mustang IRS part 4. In this episode I discover how much work this install will be. I didn't like the ride height at all with the subframe under the F100 frame. So I cut the frame! This lets me move the Mustang subframe up 3" to get the ride height I want. If you'd like to help out with parts and future builds you can contribute at   / thegofastgarage   Thank you!