hawiianpwr

iTrader: (2)

Just a quick question. I have a 2000 gmc rcsb z-71. Right no I have 285/75/16 and they fit fine. But I need new new tires and wanted to go up a size. I've topped out my torsion bars already.
I'm looking at the Nitto Terra Grappler AT 305/70/16's
Can it be done?
Thanks

white1

iTrader: (5)

With the factory rims, it will be close, I had 305/70-16 on 16x8's added torsion bar keys, trimed the fenders, and they still rubbed. But they were Super Swamper SSR's and they measured 34", and had the side lugs. Ive seen a lot of trucks running 305/70's on their factory rims, and most say they dont have any rubbing problems, but I cant say for sure. I doubt you would have any problems though.

1slow01Z71

iTrader: (36)

Go with ford t-bar keys and cut the bottom of the valence a bit and you should be fine. It is going to be close when turning and hitting a bump or driveway.

hawiianpwr

iTrader: (2)

I looked up the specs.
Nitto Terra Grappler AT
285/75/16 diameter 32.68" width 11.33"
305/70/16 diameter 32.68" width 12.40"


They are dang close. I just wonder if that extra inch of width will get me.

1slow01Z71

iTrader: (36)

That last tire will rub the bottom of the valence when turning but you can trim it easily and have no problems then. It has been my experience though that t-bar suspended vehicles usually have different ride height. A buddy of my has a Z71 exactly like mine and he can fit 305/70's(think that was the size damn 33" and 12"wide) but when we tried to mount them on my truck it rubbed like an SOB. I dont know why it did since they are the same truck must eb soemthin in the tension on the t-bar.

stone150

iTrader: (2)

305's that are AT;s should work ok!

Fogle07

iTrader: (5)

the 305s will be fine. i know they will work with a 16x10 and just cranked torsion bars. if you need a set of ford keys though let me know i have them in stock for a good price

04BlackGmc

iTrader: (18)

I have 305/70's on 16x10 and only really rub the inner fender.Stock rims you should be ok.

hawiianpwr

iTrader: (2)

hey Fogle, what will a set of ford keys cost?

Fogle07

iTrader: (5)

60 shipped