Lowering front end via torsion bars

[DieselDetroit]

heyguys

When I purchased this truck (z71) it had 285/75/16s on it and the torsion bars were cranked to make it fit

I've since gone back to the factory tire size, 265/75/16, I want to bring the front end back down. I have lots of front end work to do, followed by an alignment, and want these torsion bars and front suspension setup back to stock.

What is the factory setup like? I guess the Easiest way for me to understand would be if someone knew the from the fender to the ground, or from the fender to the top of tire (in inches), or if there's another measurement method using the adjustment bolts .

Thanks

 

[evilunclegrimace]

Google "Z" height for GM trucks.

 

[evilunclegrimace]

Going from 285 to a 265 only changes your ride height by .59 inches. It is not really an issue. The taller tires will fit without changing the Z height so who ever changed the ride height did not really do any thing except make the front of the truck higher than the rear. I run 285's on my SCSB with out any issues.

 

[DieselDetroit]

You don't get it, the previous owner cranked the piss out of them

Found my answer here, 3.74 inches for k1500s supposedly

http://www.gmt400.com/posts/937412/

 

[evilunclegrimace]

You don't get it, the previous owner cranked the piss out of them

Found my answer here, 3.74 inches for k1500s supposedly

http://www.gmt400.com/posts/937412/

Actually I do get it. You stated that the previous cranked the Torsion bars to gain tire clearance for 285 tires. You did not say that they cranked the piss out of them, two different scenarios.

 

[east302]

I wonder if this varies?

Here is the z-height for a 1998 K Tahoe:

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[DieselDetroit]

Is that for a gmt800?

Those numbers (10906 20906) may not be for us

Check this

https://www.gmupfitter.com/files/media/photo/442/2013_LD_Util_071713.pdf

 

[east302]

Hmm, yeah that doesn't seem to match does it.

It's from alldata and supposed to be for a 1998 Tahoe. I see that model number K10906/20906 was used for the K Suburban in 1998, so would guess that is what it is referring to.

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