Wheel Question ...

[GreekGod]

Would these fit the back of our Marauders? ...
MUSTANG BOSS 302S WHEEL 18X10.5
M-1007-R18105*
Suggested Retail Price
$695.00 ... re:

http://www.fordracingparts.com/parts/part_details.asp?PartKeyField= 23536

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[MOTOWN]

Not without a wheel spacer

[GreekGod]

Not without a wheel spacer
Wrong offset, or just too wide?
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[MOTOWN]

Wrong offset, or just too wide?
============

Offset is close to what we have as oem, but a 10.5" wheel (with oem backspacing) is too wide to fit without a spacer, you will hit the shock/control arm way before the wheel reaches the rotor.

[GreekGod]

Offset is close to what we have as oem, but a 10.5" wheel (with oem backspacing) is too wide to fit without a spacer, you will hit the shock/control arm way before the wheel reaches the rotor.
OK, thanks! ... then a 10" wide wheel would fit with a different offset?

[MOTOWN]

OK, thanks! ... then a 10" wide wheel would fit with a different offset?

Yes on a 10" wheel a +40 or +45mm offset 10" wheel would fit/clear with no problems.

[GreekGod]

Yes on a 10" wheel a +40 or +45mm offset 10" wheel would fit/clear with no problems.
I will make note of your knowledge! Thank you very much!

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[Micahdogg]

Out of curiousity, why would a 18X10.5 with 7.7 bs hit anything? Aren't people widening stock marauder rims to 18X9.5 which is a 7.8 bs? Or do they have to do modifications to bolt those on?

[lji372]

Yes on a 10" wheel a +40 or +45mm offset 10" wheel would fit/clear with no problems.

rog, we should change your screen name to "wheelman" :lol:

[gdmjoe]

2cents from the other wheel man ...

Rims will be close, however, will fit without spacers. Reasons: offset - works-out to ~2" (50mm) and is close to the Panthers' spec's.
.
backspacing - while 7.7" the wheels should clear since that backspacing is the same as the widened Marauder rims.
.
the center bore spec' is not provided, however, since the rims are Ford Racing Performance Parts and Mustang it's probably safe to assume that it's 70.3mm | 2¾" (which is the same as that of the Panthers).HOWEVER ... BEFORE laying-out the $$$$$, I'd advise getting the vehicle up on your lift, put jack stands under the rear axle, take-off a wheel, and do some measuring.

Besides ... You got nothing better to do. :D
.

[Micahdogg]

I thought we were talking about these rims going on a Marauder?

The way I see it, stock 18X8's are 45mm offset which = 6.3 bs and 2.7 fs.

These Boss rims are going to be 7.7 bs and 3.8 fs. Since they are both 18's, just measure from a stock mounted marauder rim inward 1.4 inches (which it sounds like it will clear). Then decide if you can live with the rim sitting outward 1 extra inch.

[GreekGod]

Just to clear things up, my question was for the rear of my Marauder. I also need wheels for the rear of my 2000 Crown Victoria, which I intend to obtain 10" wide wheels for.

Of course, the '03< CV/MM/Town Car/Grand Marq/Mustang wheels will not fit on the pre-2003 Panther chassis.

Does anyone know if the lug nut seats are 6o degrees on all factory wheels? The rebuilt 8.8" axle I expect to have back this week has 5/8-18 studs, and I think I will need 45 degree nuts for them, which wouldn't work with OEM 60 degree seats? Or, can I get 60 degree nuts in 5/8-18 thread size?

I've been looking for wheels on the Speedway Engineering website, and it gets confusing about circle track wheels. Safety beads and street legal wheels are a priority for me. I am open to suggestions!

[gdmjoe]

GreekGod - Just to clear things up, my question was for the rear of my Marauder.
DOH! My bad/mis'.


Does anyone know if the lug nut seats are 6o degrees on all factory wheels?
OEM are 60degree seats.

[MOTOWN]

2cents from the other wheel man ...

Rims will be close, however, will fit without spacers. Reasons: offset - works-out to ~2" (50mm) and is close to the Panthers' spec's.
.
backspacing - while 7.7" the wheels should clear since that backspacing is the same as the widened Marauder rims.
.
the center bore spec' is not provided, however, since the rims are Ford Racing Performance Parts and Mustang it's probably safe to assume that it's 70.3mm | 2¾" (which is the same as that of the Panthers).HOWEVER ... BEFORE laying-out the $$$$$, I'd advise getting the vehicle up on your lift, put jack stands under the rear axle, take-off a wheel, and do some measuring.

Besides ... You got nothing better to do. :D
.

An 18x10 wheel on a +50mm offset will not fit the rear of a Marauder without a spacer, been there done that.

[Micahdogg]

An 18x10 wheel on a +50mm offset will not fit the rear of a Marauder without a spacer, been there done that.

Motown, can you explain what modifications are performed to widen the stock marauder wheels then? I'm asking because I thought you had a pair.

If a stock MM wheel is 18X8 +45, that's 6.3 backspace. Widening to 9.5 is an extra 1.5 inches going on the inside. 6.3 + 1.5 = 7.8 right? So how does a 18X10 +50 with 7.5 bs not clear, but a widened MM wheel with 7.8 does clear?

And I thought some people were widening MM wheels to 10 inches. Is there some spacer welded to the hub to correct offset?

[MOTOWN]

Motown, can you explain what modifications are performed to widen the stock marauder wheels then? I'm asking because I thought you had a pair.

If a stock MM wheel is 18X8 +45, that's 6.3 backspace. Widening to 9.5 is an extra 1.5 inches going on the inside. 6.3 + 1.5 = 7.8 right? So how does a 18X10 +50 with 7.5 bs not clear, but a widened MM wheel with 7.8 does clear?

And I thought some people were widening MM wheels to 10 inches. Is there some spacer welded to the hub to correct offset?

You have it all wrong bud! A stock 18x8 wheel is +50mm offset not 45mm, there's a reason most widen to 9.5" because a 10" wheel will not fit without a spacer.

Some guys with 9.5" widened wheels need spacers to avoid rubbing! And welding a spacer to a wheel is a azz backwards Mickey mouse approach! Not to mention balancing it would be a nightmare!

[Micahdogg]

Then why did you say they are 45mm here?

http://www.mercurymarauder.net/forums/showpost.php?p=1000239&postcount=4

http://www.gdmjoe.com/frppmmrim.jpg

The centerline of a 8 inch rim is 4.5. 6.295 backspace - 4.5 = 1.795 X 25.4mm = 45.59mm.

And welding spacers to a hub is no trickier than widening wheels. Bogart has been doing this to their race wheels for years. Thanks for the clarification though, I never knew that spacers were required with a 10 inch rim. If some are getting away with no spacers on a 9.5 then the 3/32 extra clearance of the Boss rims can't hurt.

[MOTOWN]

Then why did you say they are 45mm here?

http://www.mercurymarauder.net/forums/showpost.php?p=1000239&postcount=4

http://www.gdmjoe.com/frppmmrim.jpg

The centerline of a 8 inch rim is 4.5. 6.295 backspace - 4.5 = 1.795 X 25.4mm = 45.59mm.

And welding spacers to a hub is no trickier than widening wheels. Bogart has been doing this to their race wheels for years. Thanks for the clarification though, I never knew that spacers were required with a 10 inch rim. If some are getting away with no spacers on a 9.5 then the 3/32 extra clearance of the Boss rims can't hurt.

I think that's the Mustang version, the Marauder wheel has a 50mm offset

[bigmerc'03]

I have the mustang cobra R's and they are 18x10.5 and they fit with no spacer

[MOTOWN]

I have the mustang cobra R's and they are 18x10.5 and they fit with no spacer

Thats a different wheel than the oem Marauder wheel, two different wheels, and two different offsets, i have 20x10s all the way around on my car, but its a +40mm offset.

[gdmjoe]

MOTOWN MARAUDER - I think that's the Mustang version, the Marauder wheel has a 50mm offset
That Ford Racing Performance Parts offering pre-dates (2005) the use of the Mustang version (and it's only difference in the center cap mounting ridge).

AND ... as noted ... Original equipment on 2003-04 Mercury Marauder.
http://www.gdmjoe.com/frppmmrim.jpg

The Marauder rim has a 45mm offset, however, 45mm<>50mm is less than ¼" so in the scheme of things it's macht nichts.

Still say ... Doing the math', GreekGod's rim selection could fit, BUT it would be close.
.

[MOTOWN]

That Ford Racing Performance Parts offering pre-dates (2005) the use of the Mustang version (and it's only difference in the center cap mounting ridge).

AND ... as noted ... Original equipment on 2003-04 Mercury Marauder.
http://www.gdmjoe.com/frppmmrim.jpg

The Marauder rim has a 45mm offset, however, 45mm<>50mm is less than ¼" so in the scheme of things it's macht nichts.

Still say ... Doing the math', GreekGod's rim selection could fit, BUT it would be close.
.

Not sure where you got 45mm from, but that's not correct the oem Marauder wheel is +50mm I've only widened a ton of em!

[1Marauder]

Can I buy your perfect/new Marauder wheels?

[Comin' in Hot]

I have my rears widened to 9.5" and I need to run a 1/4 spacer with my 295s... its not so much the wheel hitting, it's the sidewall of the tire rubbing up against the shock mount. with the car sitting on level ground I have about 1/4" clearance between the sidewall and the shock mount. Add any suspension travel and it hits. the lettering on the sidewall is worn and the edge of my shock mount looks polished. 1/4" spacer fixed the problem.

[Micahdogg]

So probably a 285 tire would pull the sidewall in enough to make up for that spacer.

It sounds like 8.0 is really the maximum bs people have to work with. that would be the point from the hub to the shock. So if someone wanted to use say a 8.2 bs rim - it will definitely hit stuff before even mounting.

[gdmjoe]

MOTOWN MARAUDER - Not sure where you got 45mm from, but that's not correct the oem Marauder wheel is +50mm I've only widened a ton of em!
Tons of 'em or not ...

As Micahdogg noted ...

The centerline of a 8 inch rim is 4.5. 6.295 backspace - 4.5 = 1.795 X 25.4mm = 45.59mm.
.

[Comin' in Hot]

this is turning into an argument over 5mm, if your tire fits or doesn't by that amount, its probably too close for suspension movement.

[Micahdogg]

this is turning into an argument over 5mm, if your tire fits or doesn't by that amount, its probably too close for suspension movement.

For most purposes it would seem trivial, but it is basic math which is either right or wrong. You shouldn't have to throw in the towel because 5mm stumped you. Also, with the deviations in tire specs from manufacturer to manufacturer, this means you have to be as perfect with your wheel math as humanly possible.

At least this is how I managed to get a 20 X 10.5 inch rim stuffed under the rear of my t-bird and have the suspension fully articulate and clear the wheelwell lip. As it was, I had to use a 1/8th spacer to avoid some slight contact with upper shock mount (rim to unibody contact). 1/8th inch is 3.17 mm - the difference in "Fitting" and "not fitting."

[MOTOWN]

Tons of 'em or not ...

As Micahdogg noted ...

.

What ever bud! Rock on bro!