Back Space for DSE Camaro?

[badazz81z28]

Does anyone know the correct back spacing for 18" wheels on a 1970-74 Camaro with the DSE frame and Mini-Tubbed Quadra-link?

They reccomend 6.125" on the front with a 18x10 but what is the safe max?



I think I saw the DSE Camaro has 315s on the front and 335s on the back.

[Z06vet]

Not sure on 2nd gen, but my instructions for the first gen subframe list several wheel sizes & backspacing as well as tire sizes. Can probably read thru the 2nd gen instructions on their website. I noticed they modify the inner fenders on a lot of their builds. I'mjust guessing but with a 315 id think it would at least need some massaging. Sounds like youre planning a nice build. Scott

[MuscleRodz]

should be 5.5

[badazz81z28]

Well now that I'm actually measuring, looks like 5.750 and 6.00 give you the clearence from the lip.mis 5.5" expecting you to roll or shave the horizontal fender lip?

[badazz81z28]

Here is 5.750" backspace, you can visualize what it wouldb be 1/4" pushed mire outward to 5.5" BS

[badazz81z28]

Here's the other side. A little manufacturing defect in the production line with the inner and outer fender. I will have to clean ths side up

[badazz81z28]

Here's with it at 5.5",


I need advice...should I shave the fender lip to gain "more" clearence where the tow tie down is of tuck it in.

[badazz81z28]

Did another mock-up again...I don't know, IF this wheel works 45 IS accurate, 5.750" is what is needed to clear to the lip. Here I thought the tool would put my mind at ease.

[badazz81z28]

More

[icemanrd19]

stop overthinking it. I did the same

I posted in your other thread but heres what you need to do

Use the DSE specs.

Whatever the difference in total length between dse rear end and your rear end you then split it in half and either add or subtract from dse rim measurement of 5.5

Example you rear end is 1 in total length longer than dse well you need to subtract that from the wheels. So you need to bring the wheels in .5" each wheel. if dse suggest 5.5 you then need to run 6" in backspace.

If your rear end is longer than dse then add to the 5.5 backspace. If your rear end is shorter subtract from the 5.5 backspace

[badazz81z28]

It's actually DSEs spec'd 56.250" rearend and they said 5.5" and as you can see it doesn't fit unless I trim 1/4 off the lips or roll them.

I know I'm pulling my hair out, but we are talking about $5k rims!

[icemanrd19]

Like i said i did the same exact thing and ordered the same tool you ordered. I wasn't happy with that tool.

I used dse specs on the rear of my 1st gen.

[badazz81z28]

Like i said i did the same exact thing and ordered the same tool you ordered. I wasn't happy with that tool.

I used dse specs on the rear of my 1st gen.

Did you have to roll or trim the fender lips?

[icemanrd19]

nope. NO triming or anything.

there has to be someone on here that has a junk 18 x12 rim.

[badazz81z28]

nope. NO triming or anything.

there has to be someone on here that has a junk 18 x12 rim.

As you can see in my pics, something isn't right. This is 5.5" backspace

[icemanrd19]

http://www.forgeline.com/wheel_fitment.php


double check using this

[Forgeline Wheels]

I would agree with Icemanrd19. Load the suspension so that the car is at ride height and measure from the WMS ( wheel mating surface) to the fender lip and then from the WMS to the bolt that seems to be limiting your backspace.

Send me this info and I will look at the numbers and see what makes sense. Measure both sides to make sure they are the same.

[badazz81z28]

Mark,

Those pictures are weight on the suspension. What is the minimal inside clearance? If I run more BS, hitting the tie down is the concern, as you can see the wheel fit tool lip has about 1/2" clearance

[Forgeline Wheels]

Ideally, 1/2" to 3/8" clearance on the inside and outside. The wheel will measure 1" wider than stated size as the flange thickness is 1/2" per side.

[badazz81z28]

I took some measurements of the tool and about 13" end to end. I so much feel 5.75" is the right number but everyone it seems are running 5.5". I'm missing something.

All my tool pictures are set at 5.75" BS