I just completed this crossover replacement tonight. I have fenders, steering column and inner wheel wells off, but engine still in place. I'm in the process of replacing fuel lines, so my crossover fuel line had already been removed.
1) Taking off the left-side L-bracket is mandatory, but I was able to avoid removing the right-side one (which would have been a major undertaking w/o a hoist) by unbending the pre-bent brake line and feeding it between the bracket and frame. You can then re-bend the line around a large diameter socket or dowel to line up with the flex hose end.
2) I found it easier to start by threading the left-hand side of the replacement line around the steering linkage and over the steering shaft rag joint. Then I made a small bend at about the car centerline to feed the line's right end through the RHS L bracket. Then I straightened out the bend and snapped the line into the retainer clips.
The replacement job for this line took about 2 hours.
