I have a 4 Door 1997 4WD LS Blazer. (163,000 miles).
Within the past year I have replaced all 4 shocks
with Monroe Monotube Reflex Shocks 911517 and 911514.
I have also replaced the upper and lower Ball joints with SPICER 5051104 and SPICER 50001057. The ride is very nice.
I found out that my driver side Upper control bushings are in need of replacement.
I do not do the work on my vehicle. I buy the parts I think are best and take them
to a mechanic to put on. I understand that it is not easy work to replace them and I want to make sure I get the best possible replacements. I was thinking of doing both the upper and lowers of both control arms. I have read through some of the threads about using
polyurethane bushings. Can anybody add to the pros and cons. I do not go off roading
with my Blazer. I am here in the Midwest and mostly do Highway and City driving.
Thanks for any body's input.

 

Moog makes good parts.

As far as stock rubber vs polyurethane, poly bushings tend to squeak if not lubricated properly and they may actually cause more noise to be transmitted into the vehicle from the road since they do not absorb like the rubber ones do. They will last forever though.

I do not know if there are more manufacturers besides Energy Suspension that make them.

 

Thanks for the reply Swartik,

I think I will go with the Moog Rubber Bushings.

I am not a mechanical engineer, I have read that
the Polyurethane although they are a lot tougher in
longevity will actually put more stress on the metals
that they are inter connected to. This being an older
truck with a lot of older metal seems like the rubber
bushings would be the way to go.

Thanks Mark K