Finally finished up the front suspension. Had to wait until some warm weather in Denver. Upgrades included:
- Ironman Pro Foam shocks
- Ironman Torsion Bars
- Ironman Diff drop
- Ironman LCA Reinforcement Brackets
- Trail Tailor Extended Sway Bar Links
Install was pretty straight forward and everything came out with minimal effort. Again, was expecting the worst based on some past threads on t-bar removal.
Started with the diff drop. Some good write ups on the install. Basically support the diff with a jack. Remove the stock support, then swap in the drop kit and spacers. Bolt everything back up.
Next did the torsion bars. Based on a first inspection I thought they would be rusted in due to the amount of surface rust on the splines. Read some other build threads where folks having to cut them out due to seizing with rust. Was surprised when they came out pretty easily. On further inspection once they were removed there was a fair amount of grease on the splines. So they were either serviced or replaced at some point in the past.
Found a couple of tricks to get the mounts off the torsion bar splines. Pics are a bit out of order, so hope it makes sense.
First, remove the adjustment bolt from the rear of the torsion bar. Front torsion bar mount is held in with two bolts. One can come out completely and the other can't. Remove the one that can come out and run it through the mount in reverse so the bolt faces the front of the 100. Take a long breaker bar pipe and slide it over the bolt. Bolt will act as a guide to center it on the mount. Use a sledge to pound the breaker bar straight back and the mount should slide back on the splines. Only need to push it far enough back so it clears the bolt that can't be removed.
First pic shows the breaker bar on the mount.
Second pic shows the mount completely backed off the splines with the bolt still in as a guide.
With the front mount clear of the bolts you then need to slide the rear splines forward off the rear mount. Rear mount is blocked in by the frame so there is no way to hammer on it. We attached two vice grips on the torsion bar right where it starts to flare larger. Then used the front mount as a slide hammer against the vice grips. This allows a hammer force inline with the splines.
Don't have any pictures of the torsion bar install. Ironman bars have markings to show drivers side and passenger side and also front and back. They also have markings to show the spline indexing. Still used some paint on the mounts and torsion bars to make it easier to see the indexing during install since it is up in the frame when you slide it on the indexing.
Forgot to install the LCA reinforcement brackets when we did the torsion bars and came back and installed them after everything was done. So had to do everything again. LCA brackets were pretty straight forward. They slide between the torsion bar mount and the LCA. Then you have to drill holes for the bolts in the LCA for the lower mounts.
SPC UCAs were simple since access to everything is easy. Didn't even need a puller on the UCA ball joint. Just a few taps with a hammer. Since this required an alignment post install, we didn't try to dial in the adjustments on the SPCs. Set the SPC star plate to "D" for 2-3" lift. Left the cam bolts to the same position they were in and the ball joint in the middle of the slot. SPCs come with new castle nut and cotter pin.
Everyone warns of dropping the SPC washers in the frame. Even with two people we dropped 2 of them in the frame. So consider this another warning!
Not much to say about the shocks and sway bar links. Unbolt the old ones. Bolt in the new ones.
First try on the torsion bar settings was a bit low. Dialed it in again when we did the LCA brackets. Here is how it sits now.
Currently at 23.5" in the back and 22" in the front. I figure both will settle with some driving. Here is a before and after picture. Stock tires look really small after the lift.