i am at about 6' to my drip rail. i would lay that shackle down a little more and call it good. youll have great compression where your at, but youll be bump stopping a lot to keep the tire out of the top of the wheel arch. no use in bump stopping useable travel. support the jeep on jack stands and hang the axle, see how much droop you are getting where your at. people go nuts over the 45 degree thing... but i found that more of a guideline than gospel. i couldnt make use of the full compression stroke at 45 degrees.
now is the time to start thinking about shocks. to get the most out of the leafs, i opted to lay the shackle down past 45 and only have about 5" of compression. i found that a super long compression stroke from ride hight meant you needed a really short body shock (assuming you are trying to raise the lower shock mount and arent going through the floor) that severely limits droop. i wanted more droop... with a little compromising i was able to stuff a 10" shock in there and still raise my shock mounts significantly.
and i wouldnt go crazy stretching it unless you plan on doing sheet metal work. the stock shock mounts dont like it. and the axle will move rearward as it compresses. your already trying to stuff a big tire in a notoriously small wheel well. if its going to rub a little at full bump, id rather it be in the front. itll be a "softer" rub that in the rear of the fender.
