I meant 6" total trave bump & reboundl, so 3" of available bump travel with maybe .5" more lost to a coil over bump stop, leaving 2.5" bump travel before you hit the bump stop. With shocks behind the axle it translates into a little less travel at the axle centerline due to the motion ratios.
3" at the axle is pretty good. Be sure to check your pinion bumper & driveshaft to tunnel clearence. If your trans is angled down to the rear, it will require the pinion to be angled up the same amount to align it, this can cause the driveshaft to be higher than you might think.
Those frame rails do look like they droop to the rear.
David
thanks David. I've never had one that close at ride height, but the factory rails are bent completely differently than what he's using.
Would there be any downsides to having around 1"-2" more travel in the rear than what you stated ?The roads around here are pretty rough in some areas and any extra traxel could be beneficial.I do realize that ride height would be affected ,but I will have a little over 2" of channeling of the body over the frame rails.Would that not help with the ride height issues that inevitably come along with the extra travel?
I only have 4" of total travel on my falcon. This is only due to packaging, too much stuff under the falcon with the 3-link and watts.
I have only driven my car on the street at this point and I have not seen any major issues with limited travel. My DD 95 mustang only has 1" until bump stops and only rides hard when I have someone in the back seat.
4" of travel minimum should be fine. Do you plan on off roading . Our cars are meant to drive on asphalt. Unless you have some real big buddies that you intend on throwing in the back seat and take every where you go, as Greg Weld would say,"Fuggettaboutit"
No plans on offroading ,but even David reccomended 6" of travel as ideal and if you use c/o bumpstops you should add at least 1/2".I don't see the problem with 7" stroke shocks in any position if you aren't using factory style mounting points.I'm not saying you don't have some solid points,it is just that I'm 6'3" and weight 270# and what passes for pavement in some parts of my state are like hitting the inside corner curbs on some of the worst tracks i've seen.I was just thinking it wouldn't hurt to have a little cushion to the specs Dave quoted.
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. Our cars are meant to drive on asphalt. Unless you have some real big buddies that you intend on throwing in the back seat and take every where you go, as Greg Weld would say,"Fuggettaboutit" 
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