So I was on an off road trip with some mates in Poland, broke a fan, broke a radiator and then the big one my AHC.
I really like the AHC system. It makes driving very nice and smooths out all the small cracks in the road.
With correct neutral pressures, some King springs & reindexed torsion bars I was quite fast off road.
Unfortunately my Landcruiser has some rust and the line to the left rear shock developed a hole and fluid started to come out.
I drove home from Poland to the Netherlands in a Lowered Land Cruiser and thought about how I was going to fix it.
I had already repaired some lines, replaced the accumulator and some height sensors in the past and I do know the system.
Upon closer inspection all my AHC lines are really rusted, they all will need replacing in the near future.
In the past I said I would not get rid of the AHC, but these lines are expensive, replacing is a lot of work and I am being rough on the suspension.
So I thought it was time for something different. I knew someone who did some rally driving in a 100 series with Ironman Foamcell Pro suspension.
I talked to him, searched for reviews online and ordered the following components:
Front torsion bars - TOY051 (I have a Diesel)
Front Foam Cell Pro shock absorbers - 45795FEP
Diff Drop Kit - IDD100
Rear Springs - TOY013B
Rear Foam Cell Pro shock absorbers - 45796FEP (not in stock, borrowed some used ones)
Rear Upper Trailing Arms - UTA003
Rear Lower Trailing Arms - LTA003
While installing everything this week I replaced Everything, front LCA & UCA, Seals, Wheel Bearings, Needle Bearings, all bushings in the front & rear suspension and I sandblasted and painted all reused parts.
When I had all the suspension off the car and had the rear axle hanging off a few straps it was time to tackle frame rust.
Knocked off all the loose stuff with a Needle scaler, then a wire wheel on a grinder, wire wheel on a drill, wire brush, degrease & paint. A lot of work but really worth it in the end. Lower control arm bushing (the one in the frame) was a bit of a pain. One pressed out easy, the other one I had to cut and chisel out. I replaced those with OEM.
First step was removing the AHC, it was hard to reach and there was some rust on the bolts so we used a sawzall to cut off the shocks.
Here is the Cruiser up in the air, all parts taken off. You can see some parts hanging on steel wire being painted:
View attachment 2800779
Rear suspension installed, as you can see I only painted the axle where the new suspension mounts. The rest I can reach later:
View attachment 2800778
Four new trailing arms, I replaced the bushings of the Transverse / Panhard Bar:
View attachment 2800777
New Axles, Dust shields, Sway Bar Bushings, Seals, Wheel bearings, Needle bearings, UCA, LCA, ABS sensor, DIY extended sway bar links (Extended normal ones with a piece of thick wall pipe):
View attachment 2800776
Sandblasted, painted and assembled the wheel hub with some new Brembo Brakes, OEM bearings and all new hardware:
View attachment 2800775
The suspension has 50mm / 2 inches of lift. I adjusted the front torsion bars to 540mm, it gives me enough rake. I will see how that changes once I get the spare back under and load up the back. Installing the new suspension was easy and fast compared to cleaning the frame & body before painting.
It rides just a bit firmer that my (modified with king springs) AHC, bottoming out isn't really an issue anymore I can take every speedbump at speed, had the wheels of the ground a few times and Really, Really like the new suspension.