Back spacing

[Best truck design]

Anybody know where I can find the correct factory back spacing for the stock 3/4 ton steel wheels?

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[Craig 85]

I'm assuming from the year and picture you have 16.5" wheels. I could not find a source that list the BS for that size, but here's a link to a company that has one to sell. Maybe they can give you that measurement. The GM part number for a 16.5"x 6.75" wheel is GM 14035521. The Hollander part number is 560-01057.

https://www.oemwheelshop.com/produc...81-srw-16-5x6-3-4-original-oem-wheel-rim-1057

 

[Craig 85]

FYI I measured my 16 x 6.5" OEM spare and it has 4.5" of BS from the center of the wheel to the outside edge of the rim.

 

[shiftpro]

I always thought they were all 4.5... 15 and 16".