REGAL What backspacing do I need

[Greekfreak5757]

Ya I have 28x10.5-15 slicks am just wondering what backspacing I should use

I want it to

When I get home I'll get a pic for you they are close to the frame 1/2in

ok I want the slick to be flush with the lip of the fender so am assuming a 4.5 backspacing is the way to go then with a 15x10 rim

 

[39F]

I want it to

ok I want the slick to be flush with the lip of the fender so am assuming a 4.5 backspacing is the way to go then with a 15x10 rim

With a 4.5 they are slightly under to flush looks good

 

[pontiacgp]

I guess measuring is too difficult....

 

[Greekfreak5757]

I guess measuring is too difficult....

I’ve already measured I just wanna make sure that’s why am asking on here

 

[lilbowtie]

If you have 4.5 back space, a 28 10.5 slick has a cross section of 12.50 in so you have 1.25 inches passed the rim bead on both sides so 4.5 plus 1.25 or 5.75 so you need at least 5.75 inches from the drum face to the frame. you pick up a little because back space is measured from the rim lip and not the bead. So depending on your frame notch you might be able to go to 5 in BP

 

[scoti]

I want it to

ok I want the slick to be flush with the lip of the fender so am assuming a 4.5 backspacing is the way to go then with a 15x10 rim

For reference..... This is a 10" wheel with 4" of BS. I'm betting your math is off on that 10" w/4.5"BS combo being flush w/the lip depending on what you define the 'lip' as.

 

[DSPbuilt]

275/60/15 15x10 4.5 backspace
Flush with the quarter and about half an inch from the stock frame. Later I would like to notch and get a 5.5 backspace wheel and be able to tuck them in the well. As it sits not rubbing and I plan to drop it another 1-1.5 inch in the back.

 

[pontiacgp]

you can't get it flush to the quater unless you want to roll the lip

 

[scoti]

you can't get it flush to the quater unless you want to roll the lip

This.

My experiences w/others was defining the "lip" of the fender as the inside edge of the wheel opening. Many people trim or roll the lip for additional clearance. Those images 'DSPbuilt' posted are what we would say is "flush w/the body".