Zw7 Suspension Replacement

[eric32]

Hello

I have a question about the replacement of the rear springs and shocks.

My 2001 Tahoe LT Z71 is equipped ZW7 G65.

For information
G65 = Level Control Manual, self adjusting (part of the Nivomat)
ZW7 = Chassis Package Premium Smooth Ride.

My problem is that a garage replaced my old original shock absorbers with a model Mopar Magneti Marelli (ref 1AMSH22042) unsuitable for option ZW7!

I replaced these Mopar shocks by original models ACDelco 580-354 but driving the Tahoe is very bad!
The "fleet" vehicle, the steering is vague, driving is dangerous!

I wonder the garage has replaced the original coils springs by one other?

So, i decided to replace the system ZW7 by a "normal" suspension.

To the rear, I bought shocks RANCHO model RS5262 (RS5000 series) and springs 81069 MOOG (Rate Constant Spring), with insulation Helical spring MOOG K160072 (# 15765071).

To the front, I bought shocks RANCHO model RS5265 (RS5000 Series).

QUESTION to SPECIALISTS:
My choice Springs 81069 MOOG (Rate Constant Spring) with shock absorbers RANCHO RS5262 model it is coherent (it is OK?)?

Thank you in advance for your answers.

Best regards

 

[eric32]

Good evening,

My question has not found an answer, I did the job and here are my first conclusions.
Background: I want to remove the option ZW7 (Nivomat) on my 2002 Tahoe.

So I looked for a solution by looking on the US forums.
I have chosen a solution that was not so recommended but I liked to know Moog 81069 spring, Rear schock Rancho RS5262 model series 5000 and series 5000 Front schock Rancho RS5265 model.
I was also amused to replace the Front and rear discs as well as platelets.

After a road and track tests, I can tell you that my Tahoe found a new youth!
precise handling. Driving is again very pleasant. Less roll and pitch less. Short but good!

I do not regret the ZW7 option which is a great solution but that no longer suits my needs.
I must also say that with new springs, my Tahoe has risen about 5 cm! The ancient springs had 230.000 Km. This explanation may be that!