[BigRed76]

Originally Posted by 86454k30

I had an 86 K30 and my dad had an 83 K30 dually both 4" rancho lifts. The 83 rode terrible compared to my 86 I never knew why...until I put Polyurethane cab mount bushings in my 86. I new with in the first 5 minutes of driving it why the 83 rode worse as I had installed poly cab mounts in his when we built it. I ordered a new set of GM cab mounts and took the poly ones back out of my 86. In my opinion stick with the OE rubber bushings.

I see what you mean, but if your suspension is all working properly then I wouldn't think body mount bushings would have that huge of an effect on the ride quality.