Ford Performance 2021+ F-150 Lowering Shackles Released

[Ford7081]

Perfect! Appreciate you.
Another question? Tire size?
Im thinking about adding the max tow leaf springs. I don't want it to lift anything. Nor am I looking to tow more. Don't want air bags. lol. Just less body roll and side to side when driving.
Again, thanks.

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[dbtgt]

Perfect! Appreciate you.
Another question? Tire size?
Im thinking about adding the max tow leaf springs. I don't want it to lift anything. Nor am I looking to tow more. Don't want air bags. lol. Just less body roll and side to side when driving.
Again, thanks.

If you want to reduce body roll and side to side movement, I would recommend Bilstein shocks and perhaps a rear sway bar before changing out springs. I don't believe that the Max Tow springs will help you with that.

 

[Ford7081]

If you want to reduce body roll and side to side movement, I would recommend Bilstein shocks and perhaps a rear sway bar before changing out springs. I don't believe that the Max Tow springs will help you with that.

Not a Bilstein fan at all.
I did try a few others, didnt help since I am lowered.
Thinking air bags.

 

[Ford7081]

Nice!
So this will help when I am driving to stop the side to side motion also?

 

[BMCGC]

Buy an angle indicator from HF for $5. It's cheap but will serve the purpose.

Measure your driveshaft angle near the rear end before you do any modification to the suspension.

Take a pic, in case you forget or have trouble reading the numbers.

After modifications are complete, take a short drive, park the truck in the same spot and remeasure the driveshaft angle. If the angles are close and there is no vibration, you are probably ok. If there is vibration, you know what degree shim you need to go back to the factory angle.

Sometimes there will be no vibration at lower speed, but there will be a vibration at higher speed, or vice versa. It is all trial and error.

Remember to prevent binding, have the full weight of the suspension on the ground before tightening/torque on any fastener that has a bushing.

 

[Ford7081]

Buy an angle indicator from HF for $5. It's cheap but will serve the purpose.

Measure your driveshaft angle near the rear end before you do any modification to the suspension.

Take a pic, in case you forget or have trouble reading the numbers.

After modifications are complete, take a short drive, park the truck in the same spot and remeasure the driveshaft angle. If the angles are close and there is no vibration, you are probably ok. If there is vibration, you know what degree shim you need to go back to the factory angle.

Sometimes there will be no vibration at lower speed, but there will be a vibration at higher speed, or vice versa. It is all trial and error.

Remember to prevent binding, have the full weight of the suspension on the ground before tightening/torque on any fastener that has a bushing.

I did. Its good.
It has axle and trans shims that came with Ford Performance kit.

 

[Ford7081]

I ask because many say they dont work. Was curious when you added it did it work.

 

[nezff]

What is your rear measurement after? Fender to ground please.
You have the max tow right?

Roughly 39 ¼

No max tow.

 

[svtlopez]

It says 2021-2024, but would these fit a 2025? Maybe they hadn’t updated the part year yet?

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