So I added the Chase this weekend.
After work on Friday I busted my butt to get the rear done. About 4 hours by myself. The first spring pack was a PITA but the second was easy.
My driveway has a steep pitch so I backed up it, dropped into 4hi, pulled forward and backed back up again. A block of wood and a large weight distributing hitch were my wheels chocks.
I was a little paranoid about the possibility of the truck rolling of the stands.
I modified one spring at a time, the driver's side is tough because the axle doesn't want to drop far enough due to the e-brake cable.
A trick is to pull the center pins and put one of them in the spring thru the top to help align the springs to be added.
By 8 pm I was done with the rear.
Saturday morning woke up really sore, all the squatting, weight and rush to get done before nightfall.
About three hours with the help of a buddy. The extra help really ... ... ..... really helped. I'm sure the time would have doubled if I was alone... ... ... ..... and sore.
One trick here is to get the springs in, throw a scissor jack between the new bump-stop and bump-stop strike plate and force them apart by hand. The floor jack under the opposite lower link mount. The scissor jack becomes a fulcrum point spreading the spring seats further apart.
The test run on a speed bump (12" high and 2' long) riddled street proved well worth the effort. I drive by the seat of my pants and you can feel the road and the increased control of the Chase. Very nice set-up Oo.
Attention: TDR Forum Junkies 
The _/ sign (lanes of unequal height) headed West has lead to a bunch of rubber on the road too. 
