Rear end swap...
12-03-2011, 03:21 AM
#1
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Thread Starter
Join Date: Nov 2011
Location: East bay, CA
Posts: 687
Rear end swap...
I found an 8 inch from a 70 mustang for cheap. Will this be a direct fit to my 68?
Research shows they are the same width, but are the perches in the same place for a direct swap?
Thanks
Research shows they are the same width, but are the perches in the same place for a direct swap?
Thanks
12-03-2011, 03:31 AM
#2
3rd Gear Member
Thread Starter
Join Date: Nov 2011
Location: East bay, CA
Posts: 687
make my decision...
http://sfbay.craigslist.org/sby/pts/2723335382.html
OR
http://sfbay.craigslist.org/eby/pts/2722667900.html
I have access to a welder, (neighbor), but have NO clue on how to setup a rear end AT ALL....just keep that in mind!
I would rather go with the 8.8, but where would I take it to be matched up to my set up? How much would I be charged, about?
Is it easy enough to do myself with my neighbor?
OR
http://sfbay.craigslist.org/eby/pts/2722667900.html
I have access to a welder, (neighbor), but have NO clue on how to setup a rear end AT ALL....just keep that in mind!
I would rather go with the 8.8, but where would I take it to be matched up to my set up? How much would I be charged, about?
Is it easy enough to do myself with my neighbor?
12-03-2011, 04:11 AM
#3
2nd Gear Member
Join Date: May 2004
Location: CA, Bay Area
Posts: 266
http://sfbay.craigslist.org/sby/pts/2723335382.html
OR
http://sfbay.craigslist.org/eby/pts/2722667900.html
I have access to a welder, (neighbor), but have NO clue on how to setup a rear end AT ALL....just keep that in mind!
I would rather go with the 8.8, but where would I take it to be matched up to my set up? How much would I be charged, about?
Is it easy enough to do myself with my neighbor?
OR
http://sfbay.craigslist.org/eby/pts/2722667900.html
I have access to a welder, (neighbor), but have NO clue on how to setup a rear end AT ALL....just keep that in mind!
I would rather go with the 8.8, but where would I take it to be matched up to my set up? How much would I be charged, about?
Is it easy enough to do myself with my neighbor?
if you go with an 8.8 it has to be cut and shortened since it's too wide, most likely you will need to perches as well since the one on the explorer's won't work.
Im assuming your rear end is an 8 a few years back you wouldn't find any upgradeable parts, but now there are tons so it can be built to take punishment if you can't afford the 9 or mod the 8.8
here is some info i found on another site.
here is the information on Ford 9" rearends I have compiled...
All of the following has come from various sites:
These measurements are from flange to flange. Subtract 5" for bare housing length.
65-66 Mustang 57.25 inches
67-70 Mustang 59.25 inches
71-73 Mustang 61.25 inches
77-81 Versailles 58.50 inches
74 Maverick 8" 56.50 inches
75 Mustang II 8" 57.00 inches
67-73 Mustang, Torino, Ranchero, Fairlane 9" 59.25 inches to 61.25 inches
57-59 Ranchero and station wagon rears, 57.25 inches
66-77 Bronco 9", 58 inches
77-81 Granada/Versailles, 58 inches
67-71 Comet, Cougar, Mustang, Fairlane, 59.25 inches
71-73 Mustang, 61.25 inches
64 Falcon 58 inches
67 Cougar 60 inches
67 Fairlane 63.50 inches (coil springs)
72 Ford Van 3/4 ton 68 inches
73-86 65.25 inches
57-59 Ranchero and station wagon 57.25 iches (narrowest 9" housing)
66-77 Bronco 58 inches but has 5-on-5 1/2 inch diameter bolt circle
67-73 Torinos, Rancheros, Fairlanes 59.25 inches or 61.25 inches
67-71 Comets, Cougars, Fairlanes 59.25 inches
Where to find the 9" rear axle
67-73 medium and big block Mustangs and Cougars
66-71 Fairlanes, Torinos, Montegos, Comets, and other Ford intermediates
with big blocks
57-59 V8 Fords and Mercurys
77-81 Lincoln Versailles & Trucks
Type of 9" axle housings
67-73 Mustang/Cougar - light duty, thinnest housing material, small axle
bearings, 28 and 31 splines
57-68 passenger car and 1/2 ton truck - medium duty, stronger than Mustang
type, 28 and 31 splines
Ranchero/Torino - heavy duty thick wall housing, 3.25 inch diameter axle
tubes with flat tops
69-77 Galaxies (coils), Lincolns (coils), and late pickups (leaf)- 3.25
inch diameter all the way to the backing plate, coil housings have upper
control arm mount
How to recognize 9" housing centers
57 - no dimples, flat center band up the center of the rear cover, bottom
drain plug
58-59 - two dimples on back of housing, flat center band, some had drain holes
60-67 - two dimples, flat center band, oil level hole in back cover
63-77 Lincoln, LTD, Thunderbirds had 9.375 inch centers, housings were cut
away at the gasket surface for ring gear clearance, one curved rib at the front
top portion of differential. Strong, but no gears.
Types of 9" Axles
28 spline axles cannot be shortened and resplined (they're tapered)
Some can: 69-73 Mustang and Cougars have a straight 28 spline axle.
72 and earlier 31 spline axles have the ability to be shortened
73 and later 9" (big cars) have a 5-on-5 bolt circle and the axles cannot be
shortened
67-73 Mustang axles identified by wheel flange:
oval hole - 28 splines two large holes and counter sunk center - 31 splines
All of the following has come from various sites:
These measurements are from flange to flange. Subtract 5" for bare housing length.
65-66 Mustang 57.25 inches
67-70 Mustang 59.25 inches
71-73 Mustang 61.25 inches
77-81 Versailles 58.50 inches
74 Maverick 8" 56.50 inches
75 Mustang II 8" 57.00 inches
67-73 Mustang, Torino, Ranchero, Fairlane 9" 59.25 inches to 61.25 inches
57-59 Ranchero and station wagon rears, 57.25 inches
66-77 Bronco 9", 58 inches
77-81 Granada/Versailles, 58 inches
67-71 Comet, Cougar, Mustang, Fairlane, 59.25 inches
71-73 Mustang, 61.25 inches
64 Falcon 58 inches
67 Cougar 60 inches
67 Fairlane 63.50 inches (coil springs)
72 Ford Van 3/4 ton 68 inches
73-86 65.25 inches
57-59 Ranchero and station wagon 57.25 iches (narrowest 9" housing)
66-77 Bronco 58 inches but has 5-on-5 1/2 inch diameter bolt circle
67-73 Torinos, Rancheros, Fairlanes 59.25 inches or 61.25 inches
67-71 Comets, Cougars, Fairlanes 59.25 inches
Where to find the 9" rear axle
67-73 medium and big block Mustangs and Cougars
66-71 Fairlanes, Torinos, Montegos, Comets, and other Ford intermediates
with big blocks
57-59 V8 Fords and Mercurys
77-81 Lincoln Versailles & Trucks
Type of 9" axle housings
67-73 Mustang/Cougar - light duty, thinnest housing material, small axle
bearings, 28 and 31 splines
57-68 passenger car and 1/2 ton truck - medium duty, stronger than Mustang
type, 28 and 31 splines
Ranchero/Torino - heavy duty thick wall housing, 3.25 inch diameter axle
tubes with flat tops
69-77 Galaxies (coils), Lincolns (coils), and late pickups (leaf)- 3.25
inch diameter all the way to the backing plate, coil housings have upper
control arm mount
How to recognize 9" housing centers
57 - no dimples, flat center band up the center of the rear cover, bottom
drain plug
58-59 - two dimples on back of housing, flat center band, some had drain holes
60-67 - two dimples, flat center band, oil level hole in back cover
63-77 Lincoln, LTD, Thunderbirds had 9.375 inch centers, housings were cut
away at the gasket surface for ring gear clearance, one curved rib at the front
top portion of differential. Strong, but no gears.
Types of 9" Axles
28 spline axles cannot be shortened and resplined (they're tapered)
Some can: 69-73 Mustang and Cougars have a straight 28 spline axle.
72 and earlier 31 spline axles have the ability to be shortened
73 and later 9" (big cars) have a 5-on-5 bolt circle and the axles cannot be
shortened
67-73 Mustang axles identified by wheel flange:
oval hole - 28 splines two large holes and counter sunk center - 31 splines
Last edited by rwcstang; 12-03-2011 at 04:18 AM.
12-03-2011, 03:52 PM
#4
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Thread Starter
Join Date: Nov 2011
Location: East bay, CA
Posts: 687
The 70 is not mine, that is the rear end year.
Mine would be a 68. it has a GT40p crate motor and art carr c4. I will be building a warm to hot motor, but not necessarily racing it much. More of a "look what I built" car! lol
Mine would be a 68. it has a GT40p crate motor and art carr c4. I will be building a warm to hot motor, but not necessarily racing it much. More of a "look what I built" car! lol
12-03-2011, 06:03 PM
#6
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Join Date: Nov 2010
Location: Ontario
Posts: 493
12-04-2011, 01:53 AM
#9
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Join Date: Nov 2011
Location: East bay, CA
Posts: 687
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Dragonus18
4.6L (1996-2004 Modular) Mustang
8
09-09-2015 01:21 AM
2000, 408w, 66, 67, 9, compatible, craigslist, differential, end, ends, ford, materials, mustang, rear, swap
