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Thread: Backspace help
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12-08-2013 #1
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Backspace help
I pulled the trigger andordered a set of bonspeed wheels for my 67 firebird. I need some help on the back spacing... I'm planning on running 18x9 up front and 18x10 in the back. I am in the process of putting a CA chassisworks g link with chassisworks mini tubs out back. I have a complete ridetech system with tru turn for the front. Any help, especially for the back would be greatly appreciated. I'm having trouble finding info with this setup out back.
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12-08-2013 #2
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Best thing to do would be to measure for yourself. Especially after that many mods. Measure twice, buy once.
12-09-2013 #3
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You can also call chassisworks and they might be able to help.
12-11-2013 #4
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Sounds like you haven't finished the front or rear suspension yet, but you went ahead and bought wheels already. Are you doing a brake conversion as well? This can change backspace too. How do you order wheels without supplying a backspacing spec to the manufacturer? Best thing will be to measure yourself. Any backspace number you get before you actually measure your finished car is a guess.
12-11-2013 #5
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Originally Posted by First Bird
FIRST, you listen to .......
oh wait that was a rhetorical question right?
never mind
12-11-2013 #6
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I guess I should have been a little clearer. By order, I mean I placed a deposit while bonspeed had their buy 3 get 1 free sale. They won't build th rims until I provide a backspace. I may have to wait until I install my 4 link but figured someone could give me some guidance. I still don't have a rear end so, I figured that would allow for some adjustment. Up front, I figured enough people were running a ridetech setup on this forum to give me an idea on back spacing.
12-11-2013 #7
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I'm running the ridetech Triangulated 4 link and I have 17x9.5, with 5.50 back space I don't have mini tubs, but I just measured some 18x10 forgelines and those will need a 6 inch back space and they will fit on my car
forgeline test, these were 18x10 with 5.00 back space
my 17x9.5 setup with 5.50 back space
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