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Old 08-10-2016, 12:26 PM   #3
83GMCK2500
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Join Date: Sep 2009
Location: Beaverton, OR from WA State
Posts: 1,515
Re: k30 dually tire options. 285/75/16 vs 255/85/16 what size spacer

From your thread a couple days ago I went back and double checked, my spacers and the ones I posted pictures of are 1.5" I had 235-85, they rubbed at the bulge with less than 70/75psi.

Have you read through this thread? Let's see some 73-87 1 Ton Dually Pictures!

Specifically seen these pictures? Post #114 With his reply? Post #126

Same thread, another post about 255s. Post #371

A lot of it is going to boil down to what wheels you're running, what their width & offset are, etc.
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Devin

1983 GMC High Sierra 2500, 4x4, RC/LB, 400 S.B., SM-465, NP-208, Corporate 10 bolt & 9.5" 14 bolt
1996 GMC Sierra SLE 3500 DRW, 4x4, EC/LB, Vortec 454, NV-4500, BW-4401, AAM 925 & AAM 1050
1997 GMC Sierra SLT 1500 4x4, Z71/F44, EC/SB, Vortec 350

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