You can identify it by the RPO code under the arm rest. Someone will
have to tell you what it is because I don't own an '84.
I got a 1990 Z51 and it's positively teeth chattering and I will never
be able to make the roof squeaks go away, but it rocks.
Are you trying to make it a softer ride or a harder ride? Making a
sofer ride defeats the purpose of having a Z51. You would probably do
better to get Koni adjustable shocks so that you can change the ride
by twisting the shocks to suit your needs.
Also, what I did on my '90 Z51 was change out the rubber bushings to
urethane. But like I said above it's teeth chattering experience:
The upside is that with the right tires & urethande bushings you can
take cloverleaf ramps at more than 2x the posted speed limit. LOL.
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