Another shot before the outer sill is attached. It’s hard to see here, but at the forward end of the sill tube, we have welded a plate with nuts that accepts the outer, lower leg of the engine frame rail. This ties the frame rails directly into the radius arm cups in the rear of the floor. I spent a lifetime laying awake in bed at night designing this subframe – it cannot be done better. It’s well engineered, solves the radius arm cup and jacking point problems, stiffens the chassis incredibly, is not really any more expensive than the stock parts, only adds 32 pounds (but it is at the floor line so it actually LOWERS the center of gravity), is totally hidden, and might actually save a life some day. If you are replacing floors and sills on your E-Type and you don’t do this at the same time – you’re crazy. Call me about it!