Author Topic: Lowering my 2012 Boss  (Read 193 times)

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Offline SPEEDGUNNER

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Lowering my 2012 Boss
« on: March 16, 2020, 09:17:37 am »
I filled a bucket list item last summer and picked up a 2012 Boss 302. Love the car, but there were three things that bugged me mildly. First, the grill with the faux intakes needed to go and I found that to be an easy fix. Had that done before the weather turned cool. My next mission was to upgrade the factory 19" wheels, in my thinking the polished rim made the wheel look smaller and diminished the overall profile of the car. I upgraded to 20" wheels, with tires sized to keep the odometer correct but now the amount of "air" in the wheelwell appears excessive. I really did not want to lower the car as I have read many stories of ALL the variables needed to be dealt with when trying to bring the car down and I am not really interested in going to some of those extremes. What is the simple solution to lowering the car to close up that gap without dropping it to the ground? Is it as simple as a set of springs, or will more be necessary regardless?

TIA

Offline hopey

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Re: Lowering my 2012 Boss
« Reply #1 on: March 16, 2020, 11:36:36 am »
I looked at the Ford Performance BOSS Springs a couple of years ago. To do it RIGHT it is more than the springs, but many people do just that. I eventually decided against it as I have grounded out the transmission “kitty litter” scoop a few times with hard driving on the roads. On the track it wouldn’t be an issue...

What I considered was

- M-5300-T Ford Performance spring kit, drops about 3/4” front and 1.5” rear to level out the stance. This is the BOSS specific kit,
- M-4264-A FP adjustable panhard bar to re-center the rear axle after the drop.
- M-5650-A LCA BRACKETS plus M-5649-R1 FRPP R LOWER tubular CONTROL ARMS poly bushing to get the axle right.
 
I also would probably do front camber plates, to dial in the alignment. The ones I liked were the MM5CC-6 Maximum Motorsport camber plates.

1970 Boss 302 red, shaker & deluxe interior!
2013 Boss 302 LS614 Black
2016 F150 5.0 platinum 4x4
2020 Ford Explorer
2004 Harley Davidson Fatboy
Bucket list - late 70's Escort RS2000, 04-06 M3

Offline pbf777

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Re: Lowering my 2012 Boss
« Reply #2 on: March 16, 2020, 06:26:56 pm »
     The Ford Performance Parts M-5300-T spring kit would be a good choice as it doesn't drop the chassis excessively with the accompanying headaches.  The Boss chassis can generally get away with just the spring kit, but this is not what I would state with some others such as the GT.  The sum of this lowering change in this instance is not so great as to generally require other modifications or component changes, generally, but there are always exceptions, and I therefor, generally, prefer to hold-off on particularly such as the caster-camber plates until it has been established that they are required due to variances in the chassis assembly tolerances or other than production alignment values are intended which may force an aftermarket component.  Same with the adjustable panhard rod, as the chassis again may not require such depending; after all, who said the rear was mounted squarely now?  Measure, as we have many a time previously, and remember the vocabulary of acceptable "Factory Tolerances" or should one say: "plus-or-minus-some" in the original assembly.  And again although the different control arms with the lowered mountings (for the purpose of moving the instant center reward in the chassis to increase loading of the rear tires under torque application) to have an effect, the question is: will you appreciate this along with it's sort comings?

     Keep in mind that many of these aftermarket components, even when engineered properly, are often going to increase the N.V.H. within the vehicle for a number of reasons, and also some fine race car parts just make for bad street car parts!         ;)

     Scott.

Offline SPEEDGUNNER

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Re: Lowering my 2012 Boss
« Reply #3 on: March 17, 2020, 07:07:12 am »
Hey Guys,

Thanks for all the responses. Lots of good suggestions, and the Ford spring kit seems to be the hot setup. I am not planning on running the car at the track nor will I be doing any drag racing, for me this car is a cruiser (blasphemy!) but I want it to look sharp at the same time. With the current suspension set up the wheelwell gap makes it look like a 4X4 and I really want to eliminate that look. I have no desire to “slam” the car to the ground, and I really don’t want to get involved in a comprehensive suspension/front end/rear axle rebuild just to close that gap. I am trying to keep it simple, and do the least necessary to bring the car down a little and not compromise drivability. Truthfully, I would rather not involve the front end (camber/caster plates/control arms) if I don’t have to, again I am trying to keep the mods to the car at a minimum. If a set of the M-5300-T springs will be sufficient that would be outstanding. If I need to add an adjustable panhard bar just to be safe I am good with that. Again, my interest is looks (with safety as an important consideration), not race capability.

I will post some pictures once we get some weather that cooperates. This one day of sunshine followed by three days of rain is getting tiresome.