how much space between your wheel well and rear tire do you need.? - Chevelle Tech
Wheels & Tires What fits what?

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post #1 of 27 (permalink) Old Oct 24th, 17, 2:24 AM Thread Starter
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Paul
 
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how much space between your wheel well and rear tire do you need.?

Soooo .... I'm cutting it tight....

For a LOW profile tire that doesn't expand much? How much room do you need between the quarter panel in wheel tub and the tire?
I have lots of room on the frame side but not much on the body side.




454/T400/9" in a 67 Beaumont
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post #2 of 27 (permalink) Old Oct 24th, 17, 3:29 AM
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Re: how much space between your wheel well and rear tire do you need.?

What's the width and backspace on your rear wheels? Stock width rear end? What size tire do you want to run?
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post #3 of 27 (permalink) Old Oct 24th, 17, 8:22 AM
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Allen
 
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Re: how much space between your wheel well and rear tire do you need.?

Bushing type comes into play. Solid or hard poly bushings will limit body movement and the same goes for the 4 link. Assuming it's a pro touting type build with limited body roll and you don't have any factory rubber bushings you might get by with 1/2, 3/4 even better. I'v had several with just enough room to get fingers between the tire and wheel well lip and only got witness marks on cars that had stock amounts of body roll in cornering. Caution, your results may vary.....

If you haven't trimmed or rolled the lip that will help as well.
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post #4 of 27 (permalink) Old Oct 25th, 17, 2:18 AM
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Re: how much space between your wheel well and rear tire do you need.?

Be careful on the inside too, as clearance above the axle will be more generous than closer to the front and rear of the car ( near the rear body mount and the front of the tub)... the inner wheel tubs are consistent in width...

Another suggestion, "just in case", is I ran a short piece of interior welting on the outer lip... This way, IF the tire contacts the lip, it shouldn't get cut...

I ran for years with poly suspension bushings and stock (old) body bushings, and only about 3/8" clearance (not enough to even squeeze my fingers in), and never hit... Never auto-crossed, but did throw the car around on twisty roads (no "welting" on that on either)...
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post #5 of 27 (permalink) Old Oct 25th, 17, 5:56 AM
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Re: how much space between your wheel well and rear tire do you need.?

I have an 1/8 with poly lower bushings and rod uppers. It rubs ever so slightly I think another 16th and it would be fine.
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post #6 of 27 (permalink) Old Oct 25th, 17, 8:15 AM
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Re: how much space between your wheel well and rear tire do you need.?

Sounds like 1/4 - 1/2 with a tight car should be good to go
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post #7 of 27 (permalink) Old Oct 25th, 17, 2:22 PM
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Re: how much space between your wheel well and rear tire do you need.?

Anything less than 1/2" clearance on either side might concern me. I've got approximately 1" on the outside and 3/4" on the inside.

Where you at,Mark? You asked the questions.

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post #8 of 27 (permalink) Old Oct 25th, 17, 4:49 PM
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Re: how much space between your wheel well and rear tire do you need.?

What is the BackSpace on those Wheels in the above Pic ?
How Wide are they ??

How much Space do you have on the Outside/Quarter Panel Fender Lip to the Mounting Face Pad for the Wheel ???

How much Space do you have on the Inside/Frameside from the Mounting Face Pad for the Wheel to the Frame ????

What is the Total Overall Space in the Fenderwells from the Outside/FenderLip to the Frame ?????

If like you say there is lots of Room on the Inside
then you might have to start thinking about buying Wheels with more BackSpace to them !

67 Chevelle Malibu SS Cdn
Born 283 / PG / A51
468/TH400 2,500 stall/ S60 3.70 Gs
Prev Best on M/T ET S/S #3454 street Tires/Dress 2018/05/20
60' = 1.664
1/8 = 7.532 et / 91 mph
1/4 = 11.814 et / 115 mph
NEW Best with 3,500+ Stall TC 2019/09/08
60' = 1.547
1/8 = 7.311 et / 91.76 mph
1/4 = 11.595 et / 114.28 mph


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post #9 of 27 (permalink) Old Oct 25th, 17, 4:51 PM
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Re: how much space between your wheel well and rear tire do you need.?

You will need more room to the inside than outside. As the body rolls, or the axle twists going up a steep driveway at an angle for example, the top inner sidewall of the tire gets closer to the inner wheelwell but moves away from the fender lip, on the side with the higher tire. The other side moves toward the fender lip but that side is lower so it should be in open air, so to speak

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post #10 of 27 (permalink) Old Oct 27th, 17, 1:47 AM Thread Starter
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Re: how much space between your wheel well and rear tire do you need.?

Still waiting on my tires to show up for an exact measurment but it looks like about a half inch on the outside and 1 1/2 on the inside. hoping for the best at this point but I talked to Quick performance who made my rear end and they will shorten it for $150. Thanks for all the imput guys.

I'm off to Vegas for Sema but when I get back i'll let you know how it goes.

454/T400/9" in a 67 Beaumont
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post #11 of 27 (permalink) Old Nov 4th, 17, 1:09 PM
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Re: how much space between your wheel well and rear tire do you need.?

Any news ?

Like I said in my # 8 Post above
" If like you say there is lots of Room on the Inside then you might have to
start thinking about buying Wheels with more BackSpace to them ! "

EG. 1.50" more Space on the Inside less .50" on the Outside = 1" divide by 2
therefore Increase the BackSpace by .50" / 1/2"
which will give you 1" Space on the Outside and 1" on the Inside
or shorten your Rearend a 1/2" on each side / 1" Overall
but you do have to watch out for the Lower Shock Mount for a 15" Diameter Wheel
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67 Chevelle Malibu SS Cdn
Born 283 / PG / A51
468/TH400 2,500 stall/ S60 3.70 Gs
Prev Best on M/T ET S/S #3454 street Tires/Dress 2018/05/20
60' = 1.664
1/8 = 7.532 et / 91 mph
1/4 = 11.814 et / 115 mph
NEW Best with 3,500+ Stall TC 2019/09/08
60' = 1.547
1/8 = 7.311 et / 91.76 mph
1/4 = 11.595 et / 114.28 mph


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post #12 of 27 (permalink) Old Nov 9th, 17, 2:35 AM
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Clint
 
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Re: how much space between your wheel well and rear tire do you need.?

Paul, did you go with 18x10's w/4" backspace, as your earlier thread mentioned?

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post #13 of 27 (permalink) Old Nov 14th, 17, 2:30 AM Thread Starter
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Paul
 
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Re: how much space between your wheel well and rear tire do you need.?

Quote:
Originally Posted by Clint44 View Post
Paul, did you go with 18x10's w/4" backspace, as your earlier thread mentioned?

Yes and finally got the tires mounted today... I know i'll have way more room on the inside by the frame then on the quarter.

I talked to quick performance rear ends who built my rear and they said they could shorten it for $150. Also he said my Moser axles have long splines and I can cut them down with out buying new axles.

I'm hoping to have the body back on this weekend. Then I can do final mesurments before doing anything else.


454/T400/9" in a 67 Beaumont
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post #14 of 27 (permalink) Old Nov 14th, 17, 4:04 AM
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Re: how much space between your wheel well and rear tire do you need.?

You're going to need to narrow that 9" approximately 2" per side, correct?

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post #15 of 27 (permalink) Old Nov 14th, 17, 9:18 AM
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Re: how much space between your wheel well and rear tire do you need.?

I'm sorry but every time I see the subject matter to this thread I think of 'Ears".
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