Just wanted to update this to inform others about couple things.
I am running Z71 springs, Mark's spacer and the Bilstein 33-185552 10" (255/70) valving.
Ride is fantastic, no bounce, does not feel sloppy or loose. I would compare it to a firm, but not stiff sports car ride. I think the higher valving is these shocks are doing a great job compensating the stiff Z71 springs. I've rode in another TB with the Z71's and it was sloppy/ bouncy compared to what these are doing for me.
One issue tho, I used the OEM bolts and nuts, then cut some spacers/ washers to compensate for the gap in the mounting locations seen below.
At the same time of install I added the Z71's and had to unbolt the end links to gain enough gap to shove em in, one was stubborn and used an impact to loosen it up, and seemed loose when re- installing. My ride now had a clunk hitting bumps coming from the rear which I assumed was the end links. Everything was tight back there.
Long story short, the factory OEM bolts are too small for the universal 14mm(1/2") bushings Bilstein uses for these 5125's and this high rate of valving. That little bit of difference in gap between the steel bushings of the shocks and bolts was causing a ton of clunking when I hit small bumps/ gaps in the road.
So I bought some grade 8 (1/2")x13-4" long galvanized bolts and 12 1/2" washers.
Truck is once again silent over bumps.
Also, one 1/2" washer needs to be used on either side of the top bushing to eliminate the gap in that mounting location as well.
The steel bushings I cut are 1.5cm long, 1/2" shock bushing/washers.
Would totally recommend these in replace of the pricey BDS Fox 2.0 shocks. Plus these also come with boots, unlike the fox's.
