crash457
08-06-2007, 07:52 PM
Since it seems that so many people are running these and others have so many questions, I thought it might be a good idea to start a thread that will have everything in one place.
Lets start with what we know.
The wheel is a 17x8.5 with a 8x6.5 PCD.
Offset is +18 which equates to 5.45866 backspacing. Most round up to 5.5"
It is available in silver painted with a machined face or factory chrome.
There are knock off wheels and after market chrome wheels available.
Factory wheels are stamped GM in the center where the lugs are.
Factory chrome wheels are still rough cast between the spoke, not smooth.
The factory H2 center caps will fit but require a spacer on the rear.
Factory Chevy and GMC centercaps from the PYO aluminum wheels fit with minor modifications to the mounting feet on the back.
Factory Chevy and GMC centercaps from the steel wheels fit iff the outside edge is trimmed down.
There are several tire sizes that fit depeding on if the truck is stock/leveled/lifted and whether or not you want to do any trimming.
265/70 fits with no mods
285/70 fits with trimming to front valance or slight t-bar crank
295/70 fits with trimming to front valance and moderate t-bar crank
305/65 fits with trimming to front valance and average t-bar crank and moderate splash guard trim
33x12.50 fits with trimming to front valance and average t-bar crank and moderate splash guard trim
305/70 fits with trimming to front valance and extreme t-bar crank and moderate splash guard trim
315/70 fits with trimming to front valance and extreme t-bar crank and extensive splash guard trim
Tire fitment is different from tire mfg to mfg and truck to truck. This is just a guideline.
I encourage everyone to post your combinations and what you did to make them fit as well as any pics.
Mods- if you could make this a sticky maybe we won't have so many posts asking the same questions abouth these wheels.
Lets start with what we know.
The wheel is a 17x8.5 with a 8x6.5 PCD.
Offset is +18 which equates to 5.45866 backspacing. Most round up to 5.5"
It is available in silver painted with a machined face or factory chrome.
There are knock off wheels and after market chrome wheels available.
Factory wheels are stamped GM in the center where the lugs are.
Factory chrome wheels are still rough cast between the spoke, not smooth.
The factory H2 center caps will fit but require a spacer on the rear.
Factory Chevy and GMC centercaps from the PYO aluminum wheels fit with minor modifications to the mounting feet on the back.
Factory Chevy and GMC centercaps from the steel wheels fit iff the outside edge is trimmed down.
There are several tire sizes that fit depeding on if the truck is stock/leveled/lifted and whether or not you want to do any trimming.
265/70 fits with no mods
285/70 fits with trimming to front valance or slight t-bar crank
295/70 fits with trimming to front valance and moderate t-bar crank
305/65 fits with trimming to front valance and average t-bar crank and moderate splash guard trim
33x12.50 fits with trimming to front valance and average t-bar crank and moderate splash guard trim
305/70 fits with trimming to front valance and extreme t-bar crank and moderate splash guard trim
315/70 fits with trimming to front valance and extreme t-bar crank and extensive splash guard trim
Tire fitment is different from tire mfg to mfg and truck to truck. This is just a guideline.
I encourage everyone to post your combinations and what you did to make them fit as well as any pics.
Mods- if you could make this a sticky maybe we won't have so many posts asking the same questions abouth these wheels.