The following information about late model 8.8 inch rear ends to evaluate the possibility of swapping
them into early Mustangs. The 8.8" rear is almost as strong as a 9" and would be a very good choice for a hot street car. Good, low mileage versions of these rears are easily located and performance parts are readily available. Considering the ever shrinking supply of the popular Lincoln Versailles 9"ers with disc brakes, the Explorer 8.8" option looks really good. The following charts compare critical dimensions to those used in early Mustangs.1991 Ranger 8.8" 1965.66 Mustang 8"
Width 56.25" wheel flange to wheel flange 57.25" wheel flange to wheel flange
Springs Leaf, 39.125" on center with pads located on top of axle tube Leaf, 43" on center with pads located below axle tube
Brakes 10x2.5" drums 10x1.75" drums
Yoke Flange type u-joint mount Strap type u-joint mount
Tube Diameter 2.815" 2.75" (?)
Splines 28 28
Shocks Mount to bracket on rear end Mount to bracket on lower spring plate
Wheels 5 lug on 4.5" bolt circle 5 lug on 4.5" bolt circle
1997 Explorer 8.8" 1967/70 Mustang 9"
Width 59.5" wheel flange to wheel flange 59.25" wheel flange to wheel flange
Springs Leaf, 39.125" on center with pads located below axle tube Leaf, 43" on center with pads located below axle tube
Brakes Disc 10x1.75" drums
Yoke Flange type u-joint mount Strap type u-joint mount
Tube Diameter 3.25" 3.25"
Splines 31 spline 28 or 31 spline
Shocks Mount to bracket on lower spring plate Mount to bracket on lower spring plate
Wheels 5 lug on 4.5" bolt circle 5 lug on 4.5" bolt circle
The Explorer also had a .75" diameter sway bar that can be easily adapted to the Mustang. It also had a 3.55 to 1 ratio gear set and limited slip differential.
The main changes that will need to be made are as follows. They shouldn't be to expensive or difficult:
? Move the spring pads to the correct location.
? Adapt the driveshaft to the flange style yoke.
? Adapt the brake lines and parking brake cables.
If you aren't familiar with difference between flange and strap type u-joint mounts, check out this site:
http://www.homestead.com/therangerstation/Explorer8_8.html
I hope some of this info helps,also talk to TomP he knows more about it.
SCOOP
------------------
oddly obsessed with big scoops on little Mustangs
2.26 60'S
14.9 @ 90.86MPH
65 coupe,351w,C4,Big Boss 429 hood scoop,8"3.40 TracLoc,Cragar SS,Black Suede.
https://mustangsandmore.com/ubb/Fastymz.html