Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

thatJeepguy

FRF Supporting Member
Supporting Member
Joined
Nov 28, 2021
Posts
2,459
Reaction score
3,649
Location
GA
i was under the impression they changed the diff housing for 21+ but i could be wrong..

most anything that fits mustang 8.8 will fit 2009-2020..

still seeing breakage in the 21+



I do know someone personally that broke the mounting points off.. Midtravel, big jumps, coyote TT swap.. not sure the circumstances, but do know the housing failed at mounting in stock location with no braces installed, other than maybe some frame plating or like Krazy house added frame supports
Thats why i said lack of experience AND IFS. Solid axles can be set up to where the diff housing supports near zero of the structural load. Ifs has to be mounted static and any feedback from Shafts beyond normal travel are transmitted into the house causing cracks and eventual breakage. IMG_4261.jpeg
 

downforce137

FRF Addict
Joined
Jan 5, 2016
Posts
2,132
Reaction score
3,032
Location
In Diana
Thats why i said lack of experience AND IFS. Solid axles can be set up to where the diff housing supports near zero of the structural load. Ifs has to be mounted static and any feedback from Shafts beyond normal travel are transmitted into the house causing cracks and eventual breakage. View attachment 469040

i dont think it has anything to do with the axles.. as you can see the drive and coast ramps in the pic..

ring gear deflection inside the housing..
 
OP
OP
F

full-race geoff

Full Access Member
Joined
Jun 21, 2012
Posts
107
Reaction score
252
Location
AZ / NJ
Was thinking it’s more housing deflection. Keep in mind countless high power mustangs use this same 8.8 diff / gear size without issue. (Driving a rear axle in a beefier cast iron housing of course)
 
Last edited:

EricM

FRF Addict
Joined
May 11, 2016
Posts
3,481
Reaction score
3,214
Location
OHIO
IFS housings are aluminum. SRA are cast iron. There is a major difference in the flex of each case just considering the power going through it.
 

Zeusmotorworks

Semi-retired, now just a happy grumpy old man!
Supporting Member
Joined
Jan 17, 2017
Posts
2,370
Reaction score
4,162
Location
Northwest shore of Lake Travis
Does Ford themselves cast the housings? I suspect not but do not know. Reason I ask is if there was enough interest wonder if we couldn’t get an iron housing cast. It’s not always as easy as that, but sometimes it is if you know the right people. Geoff may?
 

smurfslayer

Be vewwy, vewwy quiet. We’re hunting sasquatch77
Joined
Dec 16, 2016
Posts
17,544
Reaction score
27,017
I’d be surprised if Ford casts the housing.
 
OP
OP
F

full-race geoff

Full Access Member
Joined
Jun 21, 2012
Posts
107
Reaction score
252
Location
AZ / NJ
Does Ford themselves cast the housings? I suspect not but do not know. Reason I ask is if there was enough interest wonder if we couldn’t get an iron housing cast. It’s not always as easy as that, but sometimes it is if you know the right people. Geoff may?
No, the xfer case and front diff castings are supplied by borgwarner. I have a number of contacts there, will inquire if there’s any way to get a cast iron front member
 
Top