Steering Arm Dowels

[Eric Szalanda]

Hi all,
my truck is slowly going back together, and it is a big jigsaw puzzle. A previous owner had removed bits, and now I need to find replacements. I require the 4 dowels that go in the steering arm where it bolts on to the big knuckle. The parts book lists them as 1142, but the number can be different sizes. I need the 1/2 inch ones, which are larger than the rear wheel hub ones.

The attached jpeg shows what I mean.

Thanks in advance - I hope.