Radius Arm Bushings

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Does anyone know what the easiest way to replace the radius arm bushings on my my 78 2WD is?
I've read the manual (Haynes). I've "googled", I've looked through here.
Is there a simple way to do this, or is this just a labor intensive job?
Any advice will be greatly appreciated.

 

[bronc76]

if your '78 2wd is like mine, then the r/a brackets are bolted on to frame. just take off brackets and install new bushings. if brackets are welded on, then there is more work involved. the whole front end would have to come out because the arms are bolted to the I-beams. this would be a good time to check out anything else that might need replacing