GMT 900 Trucks General Discussion 2007 - 2013 Trucks | General Discussion

My new 08n gmc Texas Edition

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Old 06-01-2008 | 02:03 PM
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But what about the suspension
Old 06-02-2008 | 09:31 AM
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As I recall, the 20s require the sport suspension.....either way texas editions get the sport suspension. Z65 I think?
Old 06-02-2008 | 11:02 AM
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Thanks Silver. What's Z65? Does that lower it? The Z60 was the package on SS that lowered 2". On my 04 I have a Handling Pkg, IIRC called Z85. That has now been tweaked.
Old 06-02-2008 | 11:24 AM
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So what is it the z65 or the z60 but i dont know but i want to lower it cuz its too high for my girl to get into.
Old 06-02-2008 | 01:33 PM
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I believe its Z60 (Z65 was a typo), just look in your glove box or on the window sticker.

There is no lifted or lowered suspension on the GMT 900s currently. The different suspension packages get you different shocks/sway bar setups. The Z65 lists as just adding a 36mm sway bar. The Z85 is 46mm monotubes with 34mm swaybar. The Z71 is the Z85 with different bump stops. The base std suspension RPO is Z83 w/ 35mm twin tubes with a 32mm sway bar.

The GM site doesn't mention anything about spring rates. Ride height is not different between suspensions.

Last edited by SilverSierra; 06-02-2008 at 01:49 PM.
Old 06-02-2008 | 02:32 PM
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Originally Posted by SilverSierra
I believe its Z60 (Z65 was a typo), just look in your glove box or on the window sticker.

There is no lifted or lowered suspension on the GMT 900s currently. The different suspension packages get you different shocks/sway bar setups. The Z65 lists as just adding a 36mm sway bar. The Z85 is 46mm monotubes with 34mm swaybar. The Z71 is the Z85 with different bump stops. The base std suspension RPO is Z83 w/ 35mm twin tubes with a 32mm sway bar.

The GM site doesn't mention anything about spring rates. Ride height is not different between suspensions.
The Z60 as used on SS was 2" shorter. If that's what u have, it carried over from prev. gen( mine, the GMT800). The Z71 used to be on 4wd but now can be had on 2wd as well.
I have a Z82 & Z85. The Z85 is heavyduty/ handling pkg. I spec'd that.

I have my orig. w/ sticker, & somewhere, a brochure on truck w/ details on susp. offered. I hang on to that stuff. Hope that helps.
Old 06-02-2008 | 04:10 PM
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The Z60 did not carry over from the the GMT 800, they just reused the RPO. The GMT 800 Z60 has a torsion bar front end. The GMT 900 Z60 has a coil over front end.

You are correct on the Z71 being available on 2wd and 4wd. FWIW, the GMT 900s all use the same front suspension now, the 4wd trucks get a differential and half shafts where the 2wd trucks have open space.
Old 06-02-2008 | 04:52 PM
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SS, appreciate info. I don't pay attn to susp. update/ change since I'm not in mkt. for a NNBS. I'm more aware of cosmetics change. I'm they left the RC out in the cold on A6. They should offer it across the board, they're just givin up mkt share IMO.
Them new ones are runners tho!
Sneeze & they're in the 13's.
Old 06-02-2008 | 05:27 PM
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Originally Posted by fastnblu
SS, appreciate info. I don't pay attn to susp. update/ change since I'm not in mkt. for a NNBS. I'm more aware of cosmetics change. I'm they left the RC out in the cold on A6. They should offer it across the board, they're just givin up mkt share IMO.
Them new ones are runners tho!
Sneeze & they're in the 13's.
really? I'll have to try that!!!
Old 06-02-2008 | 06:15 PM
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love the white!



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