Lower Control Arm Lengths for 2.5 lift
#11
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Join Date: Feb 2010
Location: Calgary
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Alright, I installed the TF lower front FlexArms on my 2.5 coil lift this am and here are my notes. I had a little hiccup with greasing them. When I was greasing them, the pressure inside the joint built up and partially popped a seal Not sure how it happened. I took it to a local Canadian Tire and they were able to reseat it with a table press and some bars. After that incident, things went smoothly. Before I installed the LCAs, my castor was around 3 degrees using the method WayOfLife describes using a Johnson angle finder. I put both Flexarms in at 23 1/8 length from the centre of each eye to the centre of the other eye. After putting them in (a jack to raise the axel can help line things up if they don't slide in nicely), and torquing them to 125, the measured Castor is around 6.5.
in terms of performance, it is much more directionally stable now (I'm still running the stock trackbar, drag link, and tie rod), especially at highway speeds. I used to get the flighty steering in wind gusts and when hitting bumps. It is much better now, and buttery smooth
I'm really happy I got them. I haven't had a chance to test out the flex yet, but am sure they will flex better than the stock arms.
in terms of performance, it is much more directionally stable now (I'm still running the stock trackbar, drag link, and tie rod), especially at highway speeds. I used to get the flighty steering in wind gusts and when hitting bumps. It is much better now, and buttery smooth
I'm really happy I got them. I haven't had a chance to test out the flex yet, but am sure they will flex better than the stock arms.
#12
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Join Date: Apr 2011
Location: Nome, ak
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#15
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im not a huge fan of measuring.. and too stupid to realize that that means i shouldnt really mess with stuff like this, but i started with them at 23" and then went off the angle from an angle finder until it was about 5.5 on each side. didnt really do the eye to eye measurements after the initial, but counted the threads showing from left side to right side and i know my right one is a couple longer than the left.. not sure if that helps, probably going to re-measure and mess with them this weekend. But 5.5 degrees improved my flightiness a bit so thats cool
#16
"JAX" You will not need rear lowers with your lift. Rear uppers will help for adjusting your rear driveshaft pinion angle. If you get rear uppers and lowers you could center your rear wheels in the opening of your rear wheelwells just as front uppers and lowers allows you to do.
#17
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Join Date: Nov 2010
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Teraflex control arms
Hi Guys,
I have just installed a 2.5" TF coil lift and changed all the OEM control arms for the TF adjustable control arms.
Couple of observations, the TF recommended arms length doesn't work with the 2.5" coil lift, not very surprising as not many people change or feel the need to go for the adjustable arms (I just like the thought of it) indeed slightly over kill
So coming back to the control arm length's, my rr top control arms are set as small as possible, the lower once are 1/8" longer than the original once. You have to do this otherwise your axel is too far to the back and your rear track bar hits the axel mounting.
For the front it is similar, just set the arms as small as possible and your jeep will drive fine. I also installed the TF adjustable front track bar (heavy duty). believe it or not but the shortest you can get the bar it is still too long, so I had to cut 1/2 inch off. The fr trackbar is now the right length.
Cheers,
Mark
I have just installed a 2.5" TF coil lift and changed all the OEM control arms for the TF adjustable control arms.
Couple of observations, the TF recommended arms length doesn't work with the 2.5" coil lift, not very surprising as not many people change or feel the need to go for the adjustable arms (I just like the thought of it) indeed slightly over kill
So coming back to the control arm length's, my rr top control arms are set as small as possible, the lower once are 1/8" longer than the original once. You have to do this otherwise your axel is too far to the back and your rear track bar hits the axel mounting.
For the front it is similar, just set the arms as small as possible and your jeep will drive fine. I also installed the TF adjustable front track bar (heavy duty). believe it or not but the shortest you can get the bar it is still too long, so I had to cut 1/2 inch off. The fr trackbar is now the right length.
Cheers,
Mark