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Old 10-06-2003, 09:58 PM   #1
RooLer
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Join Date: Aug 2002
Location: Edmond, Ok but soon to be Reno, Nv
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Wheel backspacing

Call me stupid but could someone explain to me how a backspacing measurement is taken. Is it the depth of the wheel on the inside or what? I am trying to figure out what my current wheels have for backspacing.
Also, what is the 'offset'?
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'95 GMC Yukon
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305x70R16
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Old 10-07-2003, 05:02 AM   #2
JIMs70GMC
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Backspacing and offset describe the same thing. Backspacing is measured from the back off the rim(bead) to the wheel mounting surface, offset is how much off center the wheel mounting surface is.
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs
1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX
1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears
1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now.....
1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone.
1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed.

1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm
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