i just did the pre-keyed mod on my 09 and i cranked the bars about 3/4 the way up and i was wondering how long these torsion bars will last with it cranked that high, o and the bars i have a #1 bars.

 

#1 bars will sag next to nothing if they sag at all.. the F bars will sag a lot overtime

 

even if they are cranked, they never really sag?

 

nope cause they are the strongest torsion bar ford made for the rangers.. and if they do sag it'll take a lot longer but it won't sag a lot haha

 

awesome, thats the response i wanted to hear, thanks

 

What about B bars? lol

 

Does an 02 FX4 have #1's, If so the #1's will sag, mine have I have them cranked all the way now. 80k miles.

 

They will sag, they just won't do it as soon as softer bars will.
The more you crank them, the sooner they will sag. Cranking them allows them to be twisted more when the suspension bottoms out and it induces more metal fatigue.

 

they sag as they get older like ******* do

 

ok well i plan on having coilovers before 60,000....hopefully