Sponsored

Diff bushings, most affordable replacement?

Metz3020827

Well-Known Member
Joined
Apr 25, 2024
Threads
62
Messages
423
Reaction score
72
Location
Arizona
First Name
Connor
Vehicle(s)
2017 Mustang GT
IMG_8687.jpeg

hello everyone, I’ve posted this before but I kind want to see what the best option/affordability for this.

I don’t notice any drivability problems, no weird noises etc but it’s definitely gotten worse since I last posted it and just want some more minds in here to see what the best option/experiences are.

I know people say the pucks (bushing inserts for steeda or alike) are good options and people HAVE put them over torn bushings but mine looks pretty bad at this point.

im aware ford doesn’t make OE bushings so new subframe or aftermarket bushings are the best option.

im sure its a huge job and i have my wedding and honeymoon coming up so spending 2k on just a diff bushing alone replacement seems crazy.

what are my best options? Thanks. Just want some new eyes/experiences of others.
Sponsored

 

StangTime

Well-Known Member
Joined
Apr 16, 2019
Threads
81
Messages
3,594
Reaction score
4,091
Location
Ontario 🇨🇦
First Name
Todd
Vehicle(s)
19' GT PP1 Manual
I went with the red Steeda pucks. I put in all 4 and hated the extra noise and driveline clunking. So I removed them all and went with better front bolts with a longer thicker shaft. The bolt shaft now fills the entire hole in the diff mounting and the threads are no longer in shear. The Ford engineer that designed this should fired and his diploma taken away.
See here: https://www.mustang6g.com/forums/th...ts-issues-resolutions-pics.74891/post-2013096

For the rear I put the red pucks back in as my bushing was torn. It's much better this way. Less NVH and still good support for the diff. Ideally removing the entire subframe, cutting out the bushings and replacing with after market would be best. For me that's far more time and effort than I am willing to invest for a little rubber tear.
 
Last edited:

NightmareMoon

Well-Known Member
Joined
Nov 22, 2015
Threads
62
Messages
7,061
Reaction score
6,319
Location
Austin
Vehicle(s)
2016 Mustang GT PP w/ Voodoo
Vehicle Showcase
1
Cheapest would be new poly replacement bushings and a lot of your own labor, with plenty of NVH after the install. You’ll still need to pay for as much labor as you cant do yourself, an alignment, etc.

To get back to stock nvh, I think you pay for a new ford subframe w/bushings. Then you could maybe reinforce it with the softest inserts available, or just run it OEM without inserts until they tear again some years down the road.

Both routes are a lot of work. The 2nd option is far from cheap.

Easiest and cheapest is to throw on some reinforcing inserts and take your chances with the results. I bet it will be loud, because insert pucks over aged hardened and cracked bushings sounds like a bit of a mess, but maybe its enough peace of mind to keep rollin down the road?

I did a new subframe and also added the stiffest inserts. In retrospect, the NVH is a lot, and I’d probably prefer the medium inserts.
 
OP
OP
Metz3020827

Metz3020827

Well-Known Member
Joined
Apr 25, 2024
Threads
62
Messages
423
Reaction score
72
Location
Arizona
First Name
Connor
Vehicle(s)
2017 Mustang GT
Cheapest would be new poly replacement bushings and a lot of your own labor, with plenty of NVH after the install. You’ll still need to pay for as much labor as you cant do yourself, an alignment, etc.

To get back to stock nvh, I think you pay for a new ford subframe w/bushings. Then you could maybe reinforce it with the softest inserts available, or just run it OEM without inserts until they tear again some years down the road.

Both routes are a lot of work. The 2nd option is far from cheap.

Easiest and cheapest is to throw on some reinforcing inserts and take your chances with the results. I bet it will be loud, because insert pucks over aged hardened and cracked bushings sounds like a bit of a mess, but maybe its enough peace of mind to keep rollin down the road?

I did a new subframe and also added the stiffest inserts. In retrospect, the NVH is a lot, and I’d probably prefer the medium inserts.
I was thinking of doing just the rear steeda pucks. The red ones.

any input on that?

the labor on a new subframe would be insane. Such a bad design (the reason the diff bushing tears I mean)
 
OP
OP
Metz3020827

Metz3020827

Well-Known Member
Joined
Apr 25, 2024
Threads
62
Messages
423
Reaction score
72
Location
Arizona
First Name
Connor
Vehicle(s)
2017 Mustang GT
I went with the red Steeda pucks. I put in all 4 and hated the extra noise and driveline clunking. So I removed them all and went with better front bolts with a longer thicker shaft. The bolt shaft now fills the entire hole in the diff mounting and the threads are no longer in shear. The Ford engineer that designed this should fired and his diploma taken away.
See here: https://www.mustang6g.com/forums/th...ts-issues-resolutions-pics.74891/post-2013096

For the rear I put the red pucks back in as my bushing was torn. It's much better this way. Less NVH and still good support for the diff. Ideally removing the entire subframe, cutting out the bushings and replacing with after market would be best. For me that's far more time and effort than I am willing to invest for a little rubber tear.
I was thinking of doing just the red pucks on just the rear diff bushings. The rest of the bushings are good to go. Just the driver side rear is the torn one.
 

Sponsored

StangTime

Well-Known Member
Joined
Apr 16, 2019
Threads
81
Messages
3,594
Reaction score
4,091
Location
Ontario 🇨🇦
First Name
Todd
Vehicle(s)
19' GT PP1 Manual
I was thinking of doing just the red pucks on just the rear diff bushings. The rest of the bushings are good to go. Just the driver side rear is the torn one.
Same as mine. Do just the rear pucks. The install is pretty straight forward. Getting the cradle low enough for the fronts is a huge bitch. So unless you need stronger bolts there for drag racing or hard launching, you'll be ok with the front OEM hardware.
 
OP
OP
Metz3020827

Metz3020827

Well-Known Member
Joined
Apr 25, 2024
Threads
62
Messages
423
Reaction score
72
Location
Arizona
First Name
Connor
Vehicle(s)
2017 Mustang GT
Same as mine. Do just the rear pucks. The install is pretty straight forward. Getting the cradle low enough for the fronts is a huge bitch. So unless you need stronger bolts there for drag racing or hard launching, you'll be ok with the front OEM hardware.
Yeah I don’t launch the car ever, just a pull here and there. And I can just do the rear ones on the ground right? I see some install videos that loosen up the subframe just a bit to get more room but idk if you really have to?
 

StangTime

Well-Known Member
Joined
Apr 16, 2019
Threads
81
Messages
3,594
Reaction score
4,091
Location
Ontario 🇨🇦
First Name
Todd
Vehicle(s)
19' GT PP1 Manual
Yeah I don’t launch the car ever, just a pull here and there. And I can just do the rear ones on the ground right? I see some install videos that loosen up the subframe just a bit to get more room but idk if you really have to?
You will need jack stands to have the car off the ground. You need enough clearance to get under it so you can lower the sub frame enough to clear the spare tire tub. It has to tilt toward the read so you will need to loosen the front subframe mounts and lower it a bit then remove the rear subframe mounts while supporting the subframe with a couple of pump jacks.
 

NightmareMoon

Well-Known Member
Joined
Nov 22, 2015
Threads
62
Messages
7,061
Reaction score
6,319
Location
Austin
Vehicle(s)
2016 Mustang GT PP w/ Voodoo
Vehicle Showcase
1
I was thinking of doing just the rear steeda pucks. The red ones.

any input on that?

the labor on a new subframe would be insane. Such a bad design (the reason the diff bushing tears I mean)
Yeah try the reds. The labor does suck. These problems exist on any sports car with some mileage, but the boat anchor heavy weight of the chassis makes it all worse.
 
OP
OP
Metz3020827

Metz3020827

Well-Known Member
Joined
Apr 25, 2024
Threads
62
Messages
423
Reaction score
72
Location
Arizona
First Name
Connor
Vehicle(s)
2017 Mustang GT
You will need jack stands to have the car off the ground. You need enough clearance to get under it so you can lower the sub frame enough to clear the spare tire tub. It has to tilt toward the read so you will need to loosen the front subframe mounts and lower it a bit then remove the rear subframe mounts while supporting the subframe with a couple of pump jacks.
And that’s for just the rear pucks??
 

Sponsored

StangTime

Well-Known Member
Joined
Apr 16, 2019
Threads
81
Messages
3,594
Reaction score
4,091
Location
Ontario 🇨🇦
First Name
Todd
Vehicle(s)
19' GT PP1 Manual

DougS550

Well-Known Member
Joined
May 18, 2020
Threads
317
Messages
4,735
Reaction score
2,703
Location
Fishers, Indiana
First Name
Doug
Vehicle(s)
2019 GT Premium A10 PP1 Whipple Stage 2
I will inspect my rear diffs and if I see any tears I will replace with Whiteline Street diff bushings. Good luck
 

K4fxd

Well-Known Member
Joined
Apr 2, 2020
Threads
121
Messages
13,455
Reaction score
12,262
Location
NKY
First Name
Dan
Vehicle(s)
2017 gt, 2002 FXDWG, 2008 C6,

K4fxd

Well-Known Member
Joined
Apr 2, 2020
Threads
121
Messages
13,455
Reaction score
12,262
Location
NKY
First Name
Dan
Vehicle(s)
2017 gt, 2002 FXDWG, 2008 C6,

DougS550

Well-Known Member
Joined
May 18, 2020
Threads
317
Messages
4,735
Reaction score
2,703
Location
Fishers, Indiana
First Name
Doug
Vehicle(s)
2019 GT Premium A10 PP1 Whipple Stage 2
Do they still make them?
I hope so but, I bought a set last winter and never installed them. All I know from my research was they offered bushings which were stronger than OEM with little increase if any at all NVH. I got rid of my BMR camber, Toe and Verticle links/arms due to squeaking and popping. My AAD has Zero Squeaks or pops. And my A10 shifts hard into gear and it is tight. From what I seen; most companies selling diff bushings, camber, tow arms use Poly which add quite a bit of NVH. But most don't care about increases in NVH as long as they tighten up their suspension keeping their car running straight and tight. Everything has trade offs when it comes to any mod. Good luck
Sponsored

 
 








Top