July 17, 2005On a 99 and newer 1500 I can actually get 3.5" out of them but I don't suggest it due to cv's, but you can easily get 2.5 with keeping a smooth ride and minimal effect of cv's. 99 and up 2500 will get you right at 2 - 2.5"" and then you can crank either up or down with the bolt but the lower you leave the bolt the smoother the ride because the key is at a flatter level vs looking like / when the bolt is cranked up and as i mentioned before it's not reindexing it's setting the preload level within gm specs....88-98 you'll be looking at 2" for 1500 or 2500 and for any of you who are going to ask if you can use the ford keys the answer is technically yes but I highly suggest not doing it because the ford key is actually shorter in length and the bolt will be at a slight angle and the window is bigger on the ford key than the gm. I personally like using the adjustable keys because they seem to keep a smoother ride than the set keys and if it is too stiff you can take them out and readjust on the key itself. http://levelingkits.generalspringkc.com/ for a pic of the adjustables
Forums : Suspension : leveling (1494 Views)
July 17, 2005Thanks for the reply. I have an '01 1500 and would be happy with 2" in the front. It sounds like these keys would do the trick w/o having to crank them up any further - keeping good ride quality.
I'm still a little confused by what these are actually accomplishing. By "setting the preload" do you mean increasing the torsion on the torsion bar in the standard (or starting) position? I see the advantage of this in that it would allow easy adjustment either up or down after the height increase, but at the end of the day aren't they just increasing the torsion on the torsion bars to increase the height?
If I install these adjustable keys and accomplish +2", how is it any different than if I crank up the stock torsion setting to accomplish +2"? It seems like in both cases, the torsion on the torsion bars are increasing to add height. Will the ride quality be any different? If so, why?
I'm not trying to be difficult (or stupid), I'm just trying to understand what's actually happening.
Are they pretty straightforward to install?
My plan is to bring the front up a couple of inches with torsion bar adjustment and to add a spring in the rear to bring it up a couple of inches. I'm then planning on putting on 285 75R16 tires on the stock AL rims. I'm not going for the monster look, obviously, just a little custom look.
Thanks again for the education.
July 17, 2005First, I doubt you can get 2" out of your stock keys but you can always try. Second, if you add a leaf in the rear it's going to raise it at least 1.5" so you probably need closer to 2.5 anyways to get a good look to the vehicle. Yes, if you could crank your bars up that far with the bolt it is the same thing but the key stays at a - level vs a / level which keeps the ride softer and as stated above is well within gm specs. I know it's a little confusing to understand how it works but trust me I do about 2-3 a day and customers never complain of ride quality unless it's the older style because they're not as lenient but new style works fantastic (especially 1500's)...as far as install you need a tool called gm torsion bar unloading tool to actually replace the key but your local parts store or front end store will probably rent you one or install it for 50-75 bucks which is cheaper than the tool itself
July 18, 2005OK I see. So by setting the ititial preload, the suspension r3aches factory load sooner, keeping your truck at a higher hight under the same spring load. The only problem I see is with the cv angles being greater. Makes sense now.
March 5, 2006my torsion bars on my 92 k1500 are already cranked 1", but my 285's rub like a mofo. i want to crank the bars more but my friend thinks the increased anlge will cause my CV's to bind. is this a potential problem? Also would longer front shocks help my suspension from maxing out (droop travel)? it sounds like i need new keys for more lift but i dont want anything to break
July 11, 2006i have a 92 z71 and i already have a 3 inch body lift. I am running 33x13.50s but i have a set of 35x12.50s i want to put on. I put them on before and they fit pretty good but i would have to tighten my torsion bars about an inch. Does anyone have any suggestions about changing to the new torsion keys and installing an add a leaf in the rear.
January 9, 2007
What I dont get, are the torsion key variable inserts. When you rotate the insert what does that do exactly?
Has anyone every tried this?
I have my Z71 torsion bars turned and gives me 3/4" not maxed, but I want more with the same/or better ride 2.5 total would be good with an addaleaf of 1".
January 14, 2007Hey everyone, I need some help desperatesly please! I have a '05 Chevy 1500HD 4x4. I added new torsion bars to the front and have gained only appx 3/4" lift and the upper ball joints are bottoming out so it will not allow me to crank them any higher. It bounces unbelievably by only the tires and no shock play involved. I talked to a mechanic at my local front end alignment shop and he told me that whai I needed was " upper ball joint extensions". First of all has anyone ever heard of this and if so can someone please tell me where I can get these. I have went to every parts store within a 50 mile radius of my home town and no one has ever heard of this either. The mechanic also looked at the job I did putting in the keys and said it was a perfect job so that is not the issue. Please give me some information if anyone has any on this major headeache and thanks in advance for any help!
January 15, 2007i have seen them used on some race car applications to gain extra travel for weight transfer,but i think they would be impractable on a truck,were did you get the torsion bars from,what do they have to say about the problem?my 01 2500 hd i was able to get 1 3/4 with out any problems, sounds like you are maxed out your stock suspention.sounds like you might need to to lift the front axeland change the length of the shocks.