awesome write up. thank you very much. i think a few of us will find this helpful. i was not aware of some of the negatives. i will have to check up on some of those. i was a bit concerned about the wheels/tires not centering after a turn but BOWTIEFREAK has had a different experience. maybe i will just take the hit and buy one to find out for myself. surely i could sell it on craigslist if i don't like it.
can someone post a close up/detailed pic of this on a stock tahoe?
I should have been more clear. It does center for the most part, just not all the way at low speeds or as much as you might be used to.
I'll see if I still have the instruction sheet but it's really easy. I will describe how I did it.
Put the truck on ramps or jack stands with wheels centered (you may need the extra room for the drilling part).
Remove the rear mud or skid plate (mine is plastic) that covers the steering stuff. I think they were 5/8 bolts (4). This will allow open access to the drag link.
The kit has two mounting brackets, 4 U-bolts (2 sizes), a shock and some hardware. You will need a drill, 5/16 bit, and a socket or wrench set.
Grab the larger 'L' shaped (frame) bracket. One side has two holes of a different size and the other side is a longer tab with a single hole. Using one of the bolts you just removed from the skid plate, mount the bracket with the tab sticking up using the larger of the two holes (duh - bolt won't fit the other hole) under the drivers side where the bolt came out of. The smaller hole should be over an angled portion of the cross member and the tab will be parallel with the wheels. You can now drill up through the smaller hole into the cross member and install the provided bolt, lock washer and nut or you can do this later if want to be sure of the position of the bracket.
Leave that for now and get the shock, the other bracket and the two baggies of shock mount parts. Put a cup washer then a rubber donut (smooth side first) onto both ends of the shock. Measure the piston travel of the shock and remember it (mine was 8 inches). Thread the BODY end of the shock through the hole in the tab of the bracket you just mounted. Make sure the small donut flange centers into the hole. Follow that with another donut, flange side first then another cup washer and a nut, Tighten the mess snug making sure the donuts are still centered in the hole.
With the wheels centered, pull the piston 1/2 way out. Mine was 8 inches so I set the piston at 4 inches. This assures the most travel each way so the shock wont bottom out while turning. Thread the other bracket onto the shock up against the donut and up against the drag link and check for clearance.
The bracket can go either way but I mounted mine with the U-bolts holes behind the shaft as I wanted to leave some room around the idler arm.
Once you have decided what you'll do with the bracket you can either leave it on the shock and install the other donut, washer and nut or you can push the piston back out of your way to mount the bracket onto the drag link using the proper size U-bolts.
I was beating the snot out of a U-bolt and cussing before I realized that larger U-bolts were included. It was night and I was lying on them 
Clean the area of the drag link that the bracket will go of mud and grease if needed. Snug down the U-bolts but leave them loose enough to slide the bracket along the drag link. With the shock mounted and the rest put together, make sure the piston is still 1/2 of the way out. Move things around until the shock is straight and parallel under the drag link and there is room all around the shock and the brackets are straight.
Drill that hole and install the bolt if you didn't do it yet. Tighten down the drag link U-bolts and the ends of the shock (until the donuts bulge about 1/8 wider).
Remove the factory bolt from the frame bracket and reinstall the skid plate. There are washers provided to go between the frame and the skid plate on the passenger side to even things out and make up for the bracket thickness on the other side.
It took me longer to type this out then it did to install the bugger!
Have fun!
