It turns out that the control arm did have bushings, but they were worn. The upper bushing was even more worn than the one on the picture.
I found almost direct replacement nylon bushings from ACE hardware for 30 cents/ea:
![Image](http://img398.imageshack.us/img398/2861/img0006ct0.jpg)
I had to file down the base a little bit to make it thinner and of course I had to cut off the stems. The black Nylon bushing felt a pinch harder than the white one. Now the truck shuts down IMMEDIATELY.
I was able to test compression thanks to Al's lending me his setup. Here's what I got (in PSI):
1. 410
2. 440
3. 430
4. 420
Any comments on these values? Good? or just OK?
It's within 10% variation, so that part is good. I noticed though, that a little bit of smoke was coming out through the glow plug hole for #1 while I was testing the others. So some oil is getting in there. I am hoping that it's through the valve stem seals. I have to figure out where all the oil goes. My oil consumption now is almost 1 quart/refill. I've been using Valvoline Premium Blue Diesel engine oil, 15W-40 (the Napa diesel oil is also by Valvoline).