I had a somewhat productive weekend working on a couple 4runner projects.
About week or two ago, after sessioning some speed humps feeling the rear suspension, an occasional clunk I had started becoming more common and pronounced. As it turned out, the lower bushing on my idler arm assembly was evicted from its home.
As with most things I do, if I am going to replace it, I might as well try and upgrade it. So I found that I could get a newer idler arm assembly and machined brass alloy bushings from 4Crawler. They have a great guide on all the different arm configurations and what works/doesn’t work.
I originally ordered a new assembly from autozone and got the inferior part so I then tried Napa. Of course I got the better part from them and some fresh brake pads for the front as well.
I went out to a buddy’s shop and decided I would throw the bushings in real quick and then throw it on the truck when I got home. Unfortunately the bushings didn’t fit. I emailed them, and they said to sand off the powder coat. After doing that, they still didn’t fit. So my stubbornness to install these upgraded bushings led to into about 6 hours of precisely filing, sanding, and wire wheeling two raised sections of the spindle down so it had a constant 20mm diameter.
Originally the part only came with one fat nut to lock it all together but the 4Crawler kit came with two different sizes so I could really lock it down which I really thought was a nice touch.
Then I started playing with the 1020 extruded aluminum and built the new hybrid top frame. Unfortunately, my canback hoops aren’t all equal and there’s quite a bit of variation between them so mounting the 1020 to it was getting pretty nasty and specific. I have decided I’m going to do away with their framework and build my own out of 1x1x.125. That should make everything a lot easier, and I’m going to try and construct a new track for the rear window as well.
I was going to make 6 of these and weld them to the tubing, but all of the bends were a little off and none of the sides were quite in the same plane. I know one side used to rub on my roll bar and I don’t know why I didn’t think of that first. Oh well. I guess at the end of the day I’ll have a canback frame in the parts pile as well.