Posted by Chris Case [162.158.255.112] on Friday, June 03, 2016 at 09:26:21 :
In Reply to: 107dB for mine posted by MichaelM in Mich [162.158.68.89] on Friday, June 03, 2016 at 07:33:58 :
Clearance between body and frame w/ taller bushings. Can you see the dip with a bit of rust around it? That is where a different cab had been rubbing.
See also pic #13 at the link.
If the cab touches the frame, it will transmit all frame vibrations to the cab, which then acts like a megaphone.
Transfer case linkage is supposed to have 'wavey washers' in it to prevent their rattling. Look in the yellow boxes at the hardware store.
I did these things to my own 230 truck, and can converse at freeway speeds.
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