Minei s about a 3.5" TT mabey a hair more. and im 4wd, and i wheel it hard, and i wheel it often, and i have yet to grenade a CV. OH yeah and i run 35's with a front locker.
I say this frequently on every forum i post on.
Try it before you supply it. No one wants to hear what you read somewhere and took for fact.
Now i will say that the CV's will wear faster the more you crank. I have almost 100k miles on my setup since i cranked the torsion bars up and still no cv problems. No popping no Clicking no binding.
Think of this now... IFS has a limited range of movement with Torsion bars. Ford knew the limits of travel when they designed it. Now do you think Ford would put a CV in the there that couldnt handle operating at all angles it could be subjected to throughout the range of movement?
That’s what I never understood about the torsion twist for 4x4’s as well. The front end of these 2nd gens. has a fixed amount of travel (let’s say 8”), the cv’s are designed to work within that range of motion. Now,put the tire right in the middle, the cv is straight across: you would get 4” up & 4” down. Twisting the torsion bars will force the tires to drop (let’s say 2”) lifting the front 2”, now you have 2” of down travel and 6” up, no??? That’s within the designed range of the cv’s & shouldn’t cause any problems.
Maybe I’m looking at it wrong, but here is a quote from GJarrett on the TT:
“The torsion twist does not change wheel travel at all. But since you are lowering your wheels an inch or two by raising the front you are starting in a static position with some of your down travel already used up. You will have more articulation in compression and less in droop now. So however much lift you get is how much less droop articulation you will have. You're already using some of your down travel just sitting there.”
From that it seems that the cv’s shouldn’t bind. Now if you added longer arm or somehow added travel outside of the designed range, I could see where they would have problems.
I have my torsion bolts cranked all the way up and would still like more. I have longer bolts, but the arms of the torsion key are maxed up now, I don’t know how I could get any more lift with longer bolts…