There are two other companies that make after-market control arms for the D40.
Here is Calmini upper control arm.
D40 Upper Arms
Here is Total Chaos upper control arm.
05+ Nissan Frontier/Xterra/Pathfinder Upper Control Arm
I took some pic's on my last outing to show the good amount of up and down travel you can get with just ICON coilovers and stock control arms.
All 4 tires were still on the ground.
Driver's front compressed.
Passenger front at full drop. See how the upper control arm dose NOT contact the...
I have a request.
I would see what suspension down travel you guys are getting. what I am looking for is a measurement from the center of the hub to the fender arch with the wheel on the ground and a measurement with the front end jack up and the tires not touching the ground.
Also with the...
I have ICON coilovers that that give me 3" of lift in the front. The limiting factor to the front suspension is the short control arms. Even with after-market upper controls you can't max out the C.V's.