Z71 Or Just A Sticker That Was Slapped On

[OLDBLUE93]

I JUST BAUGHT A 1993K1500 WITH A Z71'S ON IT WAS WONDERING HOW YOU CAN TELL IF IT IS ACTUALLY A Z71.

[rickmac]

I JUST BAUGHT A 1993K1500 WITH A Z71'S ON IT WAS WONDERING HOW YOU CAN TELL IF IT IS ACTUALLY A Z71.

 

 

bilstien shocks and skid plates underneath

[[email protected]]

Look in glove box for RPO code "Z71".

[rodram]

.. the best way (as mentioned above..) is to check the RPO codes in the glove box

 

.. but otherwise.... in that year (Z71 option items have evolved over a number of years since) .. the Z71 options included the Bilstein gas shocks, the skid plates, and the two Z71 stickers... also in order to get the Z-71 option it would have had to be a four wheel drive, and it would have had to have the option for the aluminum wheels and upsized tires to 265-75R16.

 

.. so really, the Z-71 designation does not mean that much ... except on these GMT400 (1988-1998) it looks cool and in my opinion, defines a Chev/GM truck of that vintage.

[radiator]

Im not an expert but im pretty sure that if it was a Z71 than the Tachometer will read up to 6000 RPM instead of 5000 RPM. Also the speedometer will read higher than 80 MPH. i cant remember the exact speed but maby somewhere around 100-110 MPH.

 

Hope this helps.

[MS3DALE]

Im not an expert but im pretty sure that if it was a Z71 than the Tachometer will read up to 6000 RPM instead of 5000 RPM. Also the speedometer will read higher than 80 MPH. i cant remember the exact speed but maby somewhere around 100-110 MPH.

 

Hope this helps.

 

The Z71 option had nothing to do with the tach or speedo being different,The cluster was same.

[wierdo124]

Yep, RPO code Z71 in the glovebox. Same way you determine a ZR2 S10

[green 788]

It should have the locking rear differential too, right?

[MS3DALE]

It should have the locking rear differential too, right?

 

No not always,On some of the GMT800 trucks starting in '04 it does,It is now part of the Z71 pkg. on the GMT900 trucks.

[wierdo124]

It should have the locking rear differential too, right?

I do'nt think it's a locker, i think it was an LSD.

[MS3DALE]

It should have the locking rear differential too, right?

I do'nt think it's a locker, i think it was an LSD.

 

 

No,The G80 in the trucks is a locker.

[[email protected]]

It should have the locking rear differential too, right?

I do'nt think it's a locker, i think it was an LSD.

 

 

No,The G80 in the trucks is a locker.

 

 

Don't worry, I wasn't planning on calling you. 

[johnnyquick]

Actually it is the G-80 gov. lok which is a piece of crap that lock up until I believe 20 mph oncw it senses wheel spin.

They generally break if used very much.

NOT a true "locker" by any means, I put a detroit unit in mine after the Gov-lok blew up and have been happy since with true locker performance in the inclement weather.

[atsbob]

.. the best way (as mentioned above..) is to check the RPO codes in the glove box

 

.. but otherwise.... in that year (Z71 option items have evolved over a number of years since) .. the Z71 options included the Bilstein gas shocks, the skid plates, and the two Z71 stickers... also in order to get the Z-71 option it would have had to be a four wheel drive, and it would have had to have the option for the aluminum wheels and upsized tires to 265-75R16.

 

.. so really, the Z-71 designation does not mean that much ... except on these GMT400 (1988-1998) it looks cool and in my opinion, defines a Chev/GM truck of that vintage.

 

My 98 Z71 came with 245 tires and the lighter suspension and the heaver by 300lb suspension came with the 265..

[mjlimo82]

It doesn't matter if it's a Z71 or not to have a G80. Mine is a plain and simple 1990 4x4 SLE and has a G80, and it was special ordered with it AND 265/75R16 tires on steel wheels rather than aluminum, although the steel wheels are long gone. Rear end was gone through a few years ago just as a preventative measure and all was well; the guy that did it was a certified GM tech for years and he said it's one of the better ones he's seen. 241K trouble-free miles. Lucky I guess! I just hate the clunk it makes when you take off.