Rear tire wobble at wot?

[AnthonyA1234]

Today I was coming out of a turn at 1st gear and when the car got to around 3-4k rpm I floored it and the back tires felt like they were wobbling up and down and the car didn’t really pick up speed that much but I didn’t really get to see what would’ve happened because I got scared and took my foot off the gas when I felt the wobble. The only suspension/ chassis parts the car has is steeda spacers all the way around and a irs subframe brace and g trac 2 point brace. Is this normal for these cars?

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[StangTime]

Have a look at this post: Check those spindle nuts.

 

[NGOT8R]

You need a Stop the Hop kit to prevent wheel hop. Failure to address this can lead to broken half shafts.

 

[StangTime]

You need a Stop the Hop kit to prevent wheel hop. Failure to address this can lead to broken half shafts.

OP states he does have an IRS subframe brace but doesn't mention which one.

 

[carguy231]

No, it is not normal.

 

[NGOT8R]

OP states he does have an IRS subframe brace but doesn't mention which one.

Yes, he has the Steeda subframe braces if my memory serves me correctly. IMO, there are other supporting mods to help eliminate wheel hop (vertical links, differential bushing kit, adjustable toe links, and differential support bracket), I don’t think the subframe braces alone eliminate the hop. Steeda sells them individually, but they also have a few variations of the Stop the Hop Kit (mild to wild).

 

[NGOT8R]

Have a look at what‘s occurring here for a more detailed visual explanation.

 

[AnthonyA1234]

It’s strange because I accelerate and push the car all the time but this particular time today I really felt the wheel hop. And yes I just have the steeda irs subframe brace as ngot8r said

 

[NGOT8R]

Choose your poison. All parts are also sold individually in order to arrive at the perfect setup for one’s needs. I just ordered the adjustable toe links to round out my setup. The only thing left (which I don’t think I’ll need unless I was doing road course work) would be adjustable camber arms.

https://www.steeda.com/Steeda-S550-Mustang-Stop-The-Hop-Starter-Kit-555-4455

https://www.steeda.com/steeda-musta...MI_fDM6MbQ9AIVhZyGCh2x1QFJEAAYASAAEgIHQvD_BwE

https://www.steeda.com/steeda-555-4456-s550-stop-the-hop-enthusiast-kit

https://www.steeda.com/steeda-555-2129-h-s550-stop-the-hop-handling-ultimate-kit

 

[AnthonyA1234]

Choose your poison. All parts are also sold individually in order to arrive at the perfect setup for one’s needs. I just ordered the adjustable toe links to round out my setup. The only thing left (which I don’t think I’ll need unless I was doing road course work) would be adjustable camber arms.

https://www.steeda.com/Steeda-S550-Mustang-Stop-The-Hop-Starter-Kit-555-4455

https://www.steeda.com/steeda-musta...MI_fDM6MbQ9AIVhZyGCh2x1QFJEAAYASAAEgIHQvD_BwE

https://www.steeda.com/steeda-555-4456-s550-stop-the-hop-enthusiast-kit

https://www.steeda.com/steeda-555-2129-h-s550-stop-the-hop-handling-ultimate-kit

Would the starter kit be enough to solve my problem? I already have the brace so I would just need the bushing supports and alignment kit. Also, any nvh or decrease in ride quality?

 

[StangTime]

So are the wheels wobbling or jumping?

 

[AnthonyA1234]

So are the wheels wobbling or jumping?

I don’t know they didn’t make any chirp noise or anything like that I just felt like the back end of the car was floating up and down when I floored it

 

[NGOT8R]

Would the starter kit be enough to solve my problem? I already have the brace so I would just need the bushing supports and alignment kit. Also, any nvh or decrease in ride quality?

When I did mine, I did everything at once except for adjustable toe links, which are on order now. Having said that, I would recommend that you at least install the subframe bushing support kit, alignment kit and differential bushing kit to get a really good handle on stopping any wheel hop. Once you get those items installed, you can reevaluate and see if you need to keep building on it from there. As far as NVH, I would rate it at a 2 or 3 out of 10, with 10 being the worst. My wife loves a comfortable ride and she’s never complained once about the ride quality of my Bullitt with all of its mods.

 

[AnthonyA1234]

When I did mine, I did everything at once except for adjustable toe links, which are on order now. Having said that, I would recommend that you at least install the subframe bushing support kit, alignment kit and differential bushing kit to get a really good handle on stopping any wheel hop. Once you get those items installed, you can reevaluate and see if you need to keep building on it from there. As far as NVH, I would rate it at a 2 or 3 out of 10, with 10 being the worst. My wife loves a comfortable ride and she’s never complained once about the ride quality of my Bullitt with all of its mods.

Ok so I’m gonna go with the irs bushing supports and the alignment kit for now and see how that does. Will the car need an alignment after these parts are installed?

 

[StangTime]

I don’t know they didn’t make any chirp noise or anything like that I just felt like the back end of the car was floating up and down when I floored it

Definitely sounds like wheel hop. Your nuts are probably ok.

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