What is the Z71 package?

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inthechateau

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My 98 Z71 has the 5.0 engine, not sure how that happened but there it is. Also has puny 10 bolt rear, going to fix that soon enough.
 

Thule

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i have two z71's one 97 and one 98, both are 350 vortec, silverado trim, one has button 4x4 the other does not, both have 10 bolt,
 

amng04

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Google search:

On the OBS trucks there were pre-requisite options the truck must have in order fot he z-71 option to be placed on it.
The truck must be :
4x4
Silverado/SLE trim level or better
265/75/r16 tires
alloy wheels
FWIW Every truck I have seen that is a real Z-71 has had the 5.7L. or the 6.5L Some people on the board say that they have seen some with the 4.3L V6. I personally have never seen this (and I deal with a lot of trucks)

Z-71 was available with any cab or bed configuration available on K1500
Available with automatic or 5 speed up to 95
96-up I think only available as a automatic since the only trans option for the 5.7L Vortec was the 4L60e. You may have been able to get the NV4500 with a 6.5L I don't know.

OBS the Z-71 option added:
Heavy duty Bilstein shocks
Skid plates
bed decals

The other things mentioned by posters such as heavier springs are not part of the Z-71 package, but a lot of trucks with the package have them. These options are not related to the Z-71 option:
G80 locking rear diff
heavy torsion bars
14 bolt rear end
towing package
heavy rear springs
push-button 4x4

I have a 1997 Z71 5.7 5spd. RPO codes verify it also.
 

mistaake

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It's the sticker all the cool hicks get :D

Yes, I'm kidding, don't get offended... Im'a put a Z71 sticker on my burb tho come to think of it... it will enhance the offroad ability instantly!!
 

Supercharged111

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The real irony was, IIRC, you could get the plates and the shocks without the Z71 option if you spec'd the truck just right.
 

Daly

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IIRC the only thing you couldn't get on a regular 4x4 was the Z71 sticker and the upgraded shocks. In essence the only thing that really made a Z71 was the shocks and Sticker, the Skid plates could be optioned out on a regular 4x4…
 

92oneton1500

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I may be wrong but I thought z71s came with 3.73 gears. The ones I've dealt with had 3.73s unless they were changed by the owner
 
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MDR-97-Z71

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They had the option of either gear ratio, also the option of Posi. For example, mine sadly is a true Z71 with 3.42 an no Posi


Sent from my iPhone using Tapatalk
 
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