OK i hit a dilemma now. I am able to get the procomp 6" and fabtech 6" for the same price. I hear the fabtech increases the cv angles. The I hear the pro comp breaks center links. I was ordering the pro comp when i was offered either kit for the same price. Oh man I need help choosing now.
2004 Silverado 2500 HD 6.0L,Diablo Tuner, K&N, 9" custom suspension lift, 2" body lift 3" cowl induction hood, 37" Toyo M/T's 18" incubus wheels. Comp Cams 212/218 lsa 114, E-fan. Dual shock kit, Es bushings, moog chassis front end.


Id go with Fabtech. We installed many Fabtech kits with no major issues. Tried Pro Comp on my personal Suburban and removed after a few months. Suburban handled bad, made all kind of suspension noises, it was junk. Replaced with Rancho kit and no problems.


I'm not a huge fan of procomp. I would go fabtech as well.
Dan
1999 GMC Sierra 2500 350 vortec
1967 Jeep M725 ambulance 230 tornado
1990 Cherokee Limited- 3 inch lift on 33's
...and every one of em has issues
If you have any questions or problems don't hesitate to send me or any other GMTC moderators a PM
My neighbor has a fabtech lift and has never had any problems as far as I know.Also it looks sweet and I have driven it once and it rides very nice.



i to am not a pro comp fan. id go fabtech for sure
PETE
95 GMC Sierra 2500
3" Body Lift, 33" Goodyear MTR's
5.7L 350 TBI Edelbrock SDT Exhaust, Flowtech Headers, K&N Intake
Sold :(
1999 Jeep Cherokee, 3" Rustys lift, 33" BFG MT's, locked, armored: Rolled :(
2000 Jeep Grand Cherokee Limited. K&N Intake, Custom Kolak Exhaust
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iv had my fabtech for two years no problems yet

RANCHO FTW! Subframe is one welded piece, not bolted together parts like others. I love mine, you may lose .5 inch, the 4" is more like a 5.5" lift.
Last edited by AllBlkdOut07; 04-28-2009 at 06:02 PM.
4WD/4.88s/TrueTrac/EFI Live | Rancho 4" SL | 3" BL| 20" Ballistic Jesters | 35" Toyos
Fabricated One-Off Prerunner Lightbar, Bed Tire Mount and Dual Shock Hoops w/ FOAs




I have no experience with either Fabtech or Pro-comp but like you I did plenty of research as to what lifts were better than others. I was steered away from Fabtech more than once and maybe it was just the lift is different for our HD's but I'm sure any Fabtech owner will stick by their lift. I frequent a few Duramax or GM HD sites that deal with lifts primarily for HD's and the popular company seems to be Cognito. Tuff Country is another popular lift as well and when choosing mine, it was the leading lift installed at Les Schwab and they work with the dealerships and there lifted vehicles as well. There are less-expensive kits out there but if you are like me and have a bunch of money invested in your truck, it's hard to scrimp on quality. My truck rides like a Cadillac with my 6" lift compared to stock. Good luck with your choice!
Darcy
Washington State
2006 Silverado 2500HD LT3 4X4 CC SB Duramax LBZ
Tuff Country 6" lift, 35" Toyo M/T's on 20" Ultra Peacemaker wheels, Quadzilla Stealth2 programmer, Diamond Eye 5" cat-back exhaust, factory Special order color Yellow.
I have had both procomp and fabtech and the fabtech that I currently have is a little smoother but my turn radius is very limited I am not sure if that has to do with the susp. lift. How can that be fixed?
07 SILVERADO Ls
K&N Intake
Hypertech Max Energy
6" PRO COMP LIFT
PRO COMP 17" RIMS 33" goodyear shoes
Pioneer Avic D3 nav/DVD
Chrome running boards
Chrome door handles
Dual tv/dvd in headrest
Flowmaster
HID's (8000k)
Rear view camera
Ok i talked to four shops about both kits. Superior off road, four wheels parts, pacific truck performance, and carl's alignment. They all said fabtech is an easier install since your lift is the spindles, however for the HD they said it had turing radius issuses and CV axle boots wore out quickly. They all said if I was willing to do the work the pro comp is the way to go, and drops the differential a full 6 inches not 4.5 like the fabtech. Since three places were willing to get me the kit for the same price, they basically just gave me info on experience installing them. both kits require cutting and they recommend upgrading to spicer idle arms and pitman arms as well as tie rod ends. I'm leaning towards the pro comp.... hmmm
Oh man I have finals next week and now this dilemma.. ha ha ha
2004 Silverado 2500 HD 6.0L,Diablo Tuner, K&N, 9" custom suspension lift, 2" body lift 3" cowl induction hood, 37" Toyo M/T's 18" incubus wheels. Comp Cams 212/218 lsa 114, E-fan. Dual shock kit, Es bushings, moog chassis front end.
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