Biggest Tires on a Stock 2005 1500 Z71?

[DH30]

I have a stock 2005 1500 Crew Cab Z71. I have the torsion bars cranked to raise the front end about 1.5". What is the biggest tires I can get under it without rubbing? I am willing to trim the front air dam/bumper.

[Buggle_96]

What gear ratio do you have? With it being an 05 and the chance of it being 3.42 is quite possible, that would be my biggest concern.

[DH30]

I cannot remember the exact ratio but I remember that it was the lower gear available. The 3.42 was the higher gear option.

[pwall]

Check the RPO codes, which are listed in the glovebox.

Then compare with the 'RPO Code Guide' link to the left on this page.

 

For a 3.42, the code is: GU6

For a 3.73, the code is: GT4

[DH30]

I have 3.73s.

[Schmids5.3l]

I guessing 33'' A/T's.

[psu05]

i just put 285/70/17s on and i dont' have the torsion bars cranked

[DH30]

Thanks for the advice. I guess that tomorrow I will find out. I will make them moun the tires and see how they fit before I let them balance them. Then if they are too big, I'll go with 285s. The funny thing is that the 285/70 R17s were $25 more per tire than the 295/70 R17s.

[BriDog45040]

I was told by Tire Discounters that cranking down the torsion bars will cause problems. Is this true? I too wanted to raise the front of my Z71 to level it with the back. Is 1.5" enough and is ti as far as I can raise it using the torsion bar adjustment?

 

Thanks,

 

Brian

[psu05]

Thanks for the advice.  I guess that tomorrow I will find out.  I will make them moun the tires and see how they fit before I let them balance them.  Then if they are too big, I'll go with 285s.  The funny thing is that the 285/70 R17s were $25 more per tire than the 295/70 R17s.

 

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that's the reason i went with the 285's over the 265's