Any body use the IRS subframe alignment kit?

[Scott058]

Toss in a gtrac front brace as well while at it.

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[SnowFox]

At least do the collars too.

Yeah, your right. I think I'll do the collars as well.

 

[NightmareMoon]

You only need the alignment kit if you install reinforcements on the subframe bushings. If you do install those, the bushings help keep things centered when you are bolting things up.

If your subframe to body interfaces are stock, you’ll find there are teeth marks where the subframe was bolted in, and you can usually get it back where it was without extra parts.

 

[SnowFox]

You only need the alignment kit if you install reinforcements on the subframe bushings. If you do install those, the bushings help keep things centered when you are bolting things up.

If your subframe to body interfaces are stock, you’ll find there are teeth marks where the subframe was bolted in, and you can usually get it back where it was without extra parts.

Yep, used those teeth marks as guides after putting my springs in. But would mind a second point reference/guide.

 

[skinnyb]

Toss in a gtrac front brace as well while at it.

YES, I did that as well

 

[John S]

From my limited experience, the centering sleeves offer no functional benefit to the vehicle and they could even defeat the whole purpose of the "sloppy" factory tolerance range to properly locate the cradle-to-body positioning. My son's GT accepted all four spacers without changing the factory positioning of the cradle while my Mach 1 mounting tolerances were different enough where only two spacers could be utilized and still maintain the proper factory cradle alignment. The inserts can definitely aid in the installation of the cradle if your existing bolts are already centered enough to accept them but it's really not difficult to properly position the cradle without them. If you plan on dropping the cradle on a regular basis, you could also consider mounting studs to give more range in suspending the cradle and avoid cross-threading risks or other damage to the blind body nuts.

 

[CobaltFilly]

Thinking about grabbing the IRS subframe alignment (just the inserts, not the entire lockout kit)

Im literally only wanting them first rn peace of mind that things are aligned correctly after dropping the rear for spring or whatever. If they offer any other benefits great, if not, not big deal.

Anybody use them? Experience with them?

Godly item for the price. Gave me a great traction advantage with the only other rear upgrade being vertical links. And I have noticed a distinct lack of “falling out of alignment” in the rear since the upgrade. Had three alignments since upgrade with no difference in rear alignment whatsoever versus usually needing a slight adjustment.

 

[Keeffa]

Thinking about grabbing the IRS subframe alignment (just the inserts, not the entire lockout kit)

Im literally only wanting them first rn peace of mind that things are aligned correctly after dropping the rear for spring or whatever. If they offer any other benefits great, if not, not big deal.

Anybody use them? Experience with them?

While your fitting them put the subframe bush supports in at the same time.
Well worth it.

 

[StangersInTheNight]

I did a bunch of Steeda stuff, this and the bushing caps and rear braces and k brace. Good stuff, no NVH. If you're going to break the subframe loose to put in the alignment kit, I'd at least do the bushing caps at the same time. I think they have a kit that includes both. Note that there are two different bushing kits, one is specific to GT350/Mach I.

 

[I Bleed Ford Blue]

Correct, the GT350/Mach 1 subframe is different than the regular mustang rear subframe. When you buy the steeda bushing supports for a mach 1, you have to buy the GT 350 ones.

 

[PVAMT]

Thinking about grabbing the IRS subframe alignment (just the inserts, not the entire lockout kit)

Im literally only wanting them first rn peace of mind that things are aligned correctly after dropping the rear for spring or whatever. If they offer any other benefits great, if not, not big deal.

Anybody use them? Experience with them?

I had my local speed shop install the kit when replacing my mufflers. He said “Hey, I’m going to put this Steeda kit in while I have your car on the lift. Trust me you’ll like it. “ Yeah he was right. It tightened up the rear end.

 

[WD Pro]

Correct, the GT350/Mach 1 subframe is different than the regular mustang rear subframe. When you buy the steeda bushing supports for a mach 1, you have to buy the GT 350 ones.

I think just one side of one set of bushes is different, that’s why the Steeda kit for the M1 is two parts less.

I had my local speed shop install the kit when replacing my mufflers. He said “Hey, I’m going to put this Steeda kit in while I have your car on the lift. Trust me you’ll like it. “ Yeah he was right. It tightened up the rear end.

From just the dowels … ?

Were your subframe bolts loose when you took it in ?

WD

 

[GJarrett]

I was gonna just get those but after reading this thread I guess I might as well put the bushing collars in too.....

EDIT: y'all are talking about this, right (?)

https://www.steeda.com/steeda-s550-mustang-irs-sub-frame-bushing-support-system-2015-555-4437.html

Or, for both together:

https://www.steeda.com/steeda-s550-subframe-alignment-and-support-kit.html

 

[tj@steeda]

Go with the whole stop the hop kit

https://www.steeda.com/Steeda-S550-...6FTniD0kBgGvy1nAjooHjr4RZhIGum8KGrY19uWJfrqPt

 

[Whitedevil95]

I have the Full Steeda Stop the Hop kit along with a few other goodies. Changed the entire feel of the car. So much more planted! And when it does spin it tracks straight, doesnt kick out like it did before.

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