71-73 wheel backspacing

[71 'Stang]

hey, im looking to buy some aftermarket wheels for my 71. im currently using a junkyard pair of steelies on the rear, so I cant really use those for proper measurments. It'd be real helpful if someone knew what backspacing i would need to have in order to run a 15x8 inch wheel dead center in my wheel well. thanks in advanced, Joe

 

[ponyboy289]

Hey,
This can definately be a touchy subject.Unfortunately I can't tell you exactly for a 71-73.The first thing I was going to ask/recommend was where are you buying the rims? Most of the big rim companies can help you with this.Better yet if you were buying them from a rim and tire shop they can help you by measuring for you.This is definately something you want to get right.If you did happen to mess up make sure it's because the rim is too far in,As this can be fixed via spacers that will move the wheel out.If they stick too far out,You're done. This may or may not help you somewhat as it pertains to 65-70.The fundamentals are the same.


http://www.mustangandfords.com/techarticles/mufp_0612_ford_mustang_wheel_fitment/index.html



BTW Off topic slightly.What rear are you running in your car? Is it a stock 8" or A 9" ?

 

[sbeachstang]

I ran a 15X8 with 5 inch BS centerline on my 71 vert with a 245/60/15 and had lots of room. I also ran a 15x8 5.5 BS with 275/60/15 BFG drag radials. I honestly think I could fit a 15x10 6.5 BS with the right size tire.

 

[71 'Stang]

thanks for the help guys, I ended up buying a like new set of greg weld dragstars from a member of another board im on. The rears are 15x8 with 5.5 inches of backspace. Look to be perfect, im going to be using a 295/60 with these for daily driving, and im either going to be using a duplicate pair for a 28x10.5 slick or the steelies I currently have.

thanks for that site ponyboy289, bunch of good info there, i will be running a 9 inch rear in the car soon, gotta pickup a case and I have the carrier and internals ready.

sbeachstang, thanks for the feedback, really proved helpful and was the final info I needed to call the seller and get my new wheels!

ill post pics after I get new tires and mount them on the car. Thanks guys!!

 

[ponyboy289]

Off topic,I know but as far as the 9 inch rear you are going to run.You have a center section but no housing or axles? If that's the case I have a 9 housing and 2 pairs of axles (28 spline) That I'll never use and would be very willing to sell or trade.

 

[71 'Stang]

hmm, i have a guy out on the island who said he has 3 or 4 9 inch cases and axles out of 71-73 stangs, said $200 a pop. Haven't made a commitment to purchase them yet though. Shoot me over a pm and we'll go from there, thanks alot