T O P I C R E V I E W
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RAP66
Member # 3360
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posted
Either I'm looking under the wrong rock or my wording isnt right. All of the articles say this or that will fit etc etc but for me I'd like to know so I can find something that will work for me.
For a 4lug foxbody, what is the stock wheel back spacing??
I'm collecting parts to do a 5lug conversion with fox length rear axles, SN95 front spindles. I'm also debating front/rear wheel stagger or square setup.
Thanks [ March 01, 2012, 08:18 AM: Message edited by: RAP66 ]
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copcar
Member # 10113
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posted
5.5" with stock length axles.
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5.0 LsX
Member # 10017
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posted
and then the back spacing will change depending on the width of the rims you get...im doing a 5 lug set up with 17x8" w/ a 5.5"bs in the front, and a fox length axle 17x10" w/ a 6.3"bs if you go with 9" on the front, you probably want a 6"bs
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Farrell
Member # 10801
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posted
The 1979-90 Mustang had a smaller front fender opening than the 1991-93 Mustang. Without clearance problems or tire rub, the best appearing and performing set up here is to run a 17x8 front wheel with a 245/45/17 tire and for the rear you can run a 17x9 wheel with a 275/40/17 tire with no clearance problems.
Now, If you want to run a 17x10.5 wheel with a 315/35/17 tire on the rear you can, however you will have to remove the rear quad shocks and modify the inner fender with a "Large hammer!". It can be done in your driveway in no time, but every Mustang is different! You may not have to do anything other than just remove the rear quad shocks.
Here is a basic guideline for backspacing for fox-body wheels:
7" width - 4.5" backspace
8" width - 5-5.5" backspace
9" width - 6" backspace
10-10.5" width - 6.5" backspace
Earlier (79-86) Fox body Mustangs, as well as 4-cylinder Mustangs won't typically accept greater than an 8"-wide front wheel due to strut-to-wheel clearance. An upgrade to 87-93 5.0 brakes, or SN95 brakes may be required if a wider front wheel is desired on a four cylinder or 4-eyed Mustang.
More info and some pics here: http://www.mylrs.com/blogs/lrs/archive/2010/10/15/mustang-wheel-and-tire-guide.aspx
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