Supertrucks has a badass kit with coilovers. They say 15" with glass. They do excellent engineering. The next step down I'd say would be H&M. CST is $$$, but there is no comparison to anything else I have seen.
This is a pic of our new kit for the Siverado.This kit will be available soon. It has a REAL 16" of usable travel with 35" tires. The kit will cycle a clean 19" but the fender wells are the limiting factor.
The upper Arms, lower arms, spindles / uprights, and steering arms. 8x 1" uni balls, 2x 3/4" rod ends, and 6 x 7/8" rodends, and all the 17-4 spacers. $3400.00
This price is not yet set in stone. This price is for the parts only not installed.
Hey check out this site. It looks like a cool kit but I havent seen it up close.
<A target="_blank" HREF=http://www.blackmarketfab.com/page3.html>http://www.blackmarketfab.com/page3.html</A>
Also talk with <font color=yellow>blind655</font color=yellow> on this board he runs the CST kit with coilovers on his Suburban.
I have the 4x4 RCD kit with 35" tires (HORRIBLE KT) and I get a whooping 6" of travel I just shaved the bumpstops alittle and my upper control arms hit the frame perch enough to bend it which gave me about 1/2" of travel WOW. I also removed the sway bar. No balljoint problems or cv bind because I have the fantastic torsion bars so loose. Now only if i could control the horrible bounce it might be enjoyable to drive. Wish I had $7000 to convert it to a coilover long travel 4x4.
88-98 2WD Fullsize
First, with the coil bucket being integrated into the frame, it would never be possible to setup a "bolt-on" coilover setup correctly. Even if you made a hoop and ran a coilover shock to the upper arm, you would have several balljoint and frame problems. We have a couple customers complaining about the balljoints wearing out very fast on that dual shock mount setup on the upper control arm. That's because a lot of stress and weight is put on the balljoint that it wasn't designed for. Running a coilover shock through the frame (where the shock used to go) is strong enough to cut and run a 2.5" coilover but even then the shock needs to angle slightly through the travel and may hit the sides. Mike's Burban is setup like this and it looks like he took his time. Looking at his website, he's had his share of common chevy problems. The right way to do it is how H&M set it up, where they cut out the frame and plate it in. Just like the 98 Rangers. This way the shock has nothing to interfer with. We carry the CST bolt-on long travel kit but it still only cycles 11.5-12" of travel. I need to talk to Chris and get the ball rolling on a uniball uppers and lowers.
99-02 2WD Fullsize
This factory design is a lot easier to work with as the coil bucket is welded to the frame. Easily removable. After that your options are wide open. Jerry's kit is obliviously the best yet. Boxed lower is definitely the way to go. If you want to install it yourself, CST offers the weld-on coilover hoop with there kit which is very easy to install. 15" of travel. Still balljoint though but double sheer mounts at least. Adds some strength but definitely not jumping or race worthy. Rides good on the street and aligns perfect. Uniball may be available soon.
88-98 4WD Fullsize
Drop Brackets!!!! Yuk! Look for a bolt on coil over kit within the next 6 months. We will be doing some heavy R&D work as we are getting ready to open our in-house machine shop within the next couple months. We will probably make a 930 CV adapter and custom 300M axles for the truck. Right now its back burner cause we've been way busy and don't have time to take on new projects. Definitely something to get going, lots of these trucks are crying for long travel.
Overall, there are decent kits out there but they are really meant for trucks that see the dirt once and a while and not for people with a heavy foot. Just my 2 cents.
<A target="_blank" HREF=http://www.kartek.com>KARTEK</A>
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<P ID="edit"><FONT SIZE=-1>Edited by Kartek_Webman on 07/17/02 05:57 PM (server time).</FONT></P>